Dataset on Biogeochemical cycling of Mg and Li isotopes in the Conventwald (the Black Forest, Germany)

Cite as:

Cai, Di; Henehan, Michael; von Blanckenburg, Friedhelm; Uhlig, David (2021): Dataset on Biogeochemical cycling of Mg and Li isotopes in the Conventwald (the Black Forest, Germany). GFZ Data Services. https://doi.org/10.5880/GFZ.3.3.2021.005

Status

I N R E V I E W : Cai, Di; Henehan, Michael; von Blanckenburg, Friedhelm; Uhlig, David (2021): Dataset on Biogeochemical cycling of Mg and Li isotopes in the Conventwald (the Black Forest, Germany). GFZ Data Services. https://doi.org/10.5880/GFZ.3.3.2021.005

Abstract

This data set contains chemical and Mg isotope analyses of time-series creek water, subsurface flow (0-15cm and 15-150cm), vegetation, regolith, clay-sized fraction and exchangeable fraction of regolith from a catchment of the Black Forest, Germany. This dataset is a following work of “Uhlig, D., & von Blanckenburg, F. (2019)", in which major and trace elements concentrations and 87Sr/86Sr isotope data was reported on the same batch of samples. With the new Mg isotope analyses, we investigated the potential controlling factors on water Mg isotopic composition, and we found exchange reactions in our catchment are a primary control on water chemistry. To further interrogate this finding, a batch of adsorption and desorption experiments using soil samples from our study site were carried out. The adsorption and desorption experiment results are also included here. This combination of field research and lab experiments informs about processes fractionating Mg in the critical zone – with the role of the exchangeable pool highlighted as particularly important – and further verifies the potential of Mg isotopes as a tool in tracing continental weathering process. Samples are assigned with International Geo Sample Numbers (IGSN), a globally unique and persistent Identifier for physical samples.

Methods

Briefly, shallow regolith was sampled at depth increments of 20 cm in a 3 m deep trench. Deeper regolith beyond 3 m was retrieved using diesel-powered wireline core-drilling to ~20 m. Time series water samples were collected from 01.03.2015 to 25.02.2016. Open rainfall and throughfall were collected biweekly in bulk container coved by a netting mesh. Creek discharge was collected daily at midnight by autosampler. Groundwater was sampled daily by an autosampler. The groundwater table level was monitored by a pressure probe installed 8.5 m below the surface. Subsurface flow from subsurface flow collectors was collected at two depths intervals: 0-15 cm, 15-150 cm. All the water samples were acidified and stored at 4 ˚C before analysis. Living wood, beech leaves and spruce needles were collected from representative mature and young trees.

All measurements were performed in the Helmholtz Laboratory for the Geochemistry of the Earth Surface (HELGES) at GFZ Potsdam. Soil, saprolite, the extracted clay-sized fraction, primary minerals, and bedrock were dissolved by acid digestion using a mixture of concentrated HF and HNO3 in PFA vials. Aqua regia was also applied to assist digestion after HF and HNO3 treatment. Elemental concentrations of the filtered supernatant, water samples, and acid digested solution were analyzed by inductively coupled plasma optical emission spectrometry (ICP-OES, Varian 720-ES). Relative uncertainties are better than 5% for Mg based on repeat analyses of the international reference materials SLRS‐6 (river water, NRC CNRC), BHVO-2 (Basalt, USGS), SRM2709a (soil, USGS) and synthetic in-house standards. Mg isotopes were measured via multicollector inductively coupled plasma mass spectrometry (MC-ICPMS, Thermo Neptune) using DSM3 as bracketing standard to correct for instrumental mass bias.

Authors

Cai, Di;GFZ German ResGFZ German Research Centre for Geosciences, Potsdam, Germany
Henehan, Michael;GFZ German Research Centre for Geosciences, Potsdam, Germany
von Blanckenburg, Friedhelm;GFZ German Research Centre for Geosciences, Potsdam, Germany
Uhlig, David;Institute of Bio and Geosciences (IBG-3), Jülich, Germany

Contact

Cai, Di (Ph.D student) ; GFZ German Research Centre for Geosciences, Potsdam, Germany;
von Blanckenburg, Friedhelm (Professor) ; GFZ German Research Centre for Geosciences, Potsdam, Germany;

Contributors

HELGES – Helmholtz-Laboratory for the Geochemistry of the Earth Surface

Keywords

Mg isotopes, Nutrient recycling, the Black Forest, Chemical weathering

GCMD Science Keywords

More Metadata

datacite: / download xml
- resource (xsi:schemaLocation=http://datacite.org/schema/kernel-4 http://schema.datacite.org/meta/kernel-4.3/metadata.xsd)
  - identifier (identifierType=DOI): 10.5880/GFZ.3.3.2021.005
  - creators
    - creator
      - creatorName (nameType=Personal): Cai, Di
      - givenName: Di
      - familyName: Cai
      - nameIdentifier (nameIdentifierScheme=ORCID): 0000-0001-9535-4589
      - affiliation: GFZ German ResGFZ German Research Centre for Geosciences, Potsdam, Germany
    - creator
      - creatorName (nameType=Personal): Henehan, Michael
      - givenName: Michael
      - familyName: Henehan
      - nameIdentifier (nameIdentifierScheme=ORCID): 0000-0003-4706-1233
      - affiliation: GFZ German Research Centre for Geosciences, Potsdam, Germany
    - creator
      - creatorName (nameType=Personal): von Blanckenburg, Friedhelm
      - givenName: Friedhelm
      - familyName: von Blanckenburg
      - nameIdentifier (nameIdentifierScheme=ORCID): 0000-0002-2964-717X
      - affiliation: GFZ German Research Centre for Geosciences, Potsdam, Germany
    - creator
      - creatorName (nameType=Personal): Uhlig, David
      - givenName: David
      - familyName: Uhlig
      - nameIdentifier (nameIdentifierScheme=ORCID): 0000-0002-0954-689X
      - affiliation: Institute of Bio and Geosciences (IBG-3), Jülich, Germany
  - titles
    - title: Dataset on Biogeochemical cycling of Mg and Li isotopes in the Conventwald (the Black Forest, Germany)
  - publisher: GFZ Data Services
  - publicationYear: 2021
  - subjects
    - subject: Mg isotopes
    - subject: Nutrient recycling
    - subject: the Black Forest
    - subject: Chemical weathering
    - subject (subjectScheme=NASA/GCMD Earth Science Keywords): EARTH SCIENCE > BIOSPHERE > AQUATIC ECOSYSTEMS > RIVERS/STREAM HABITAT
    - subject (subjectScheme=NASA/GCMD Earth Science Keywords): EARTH SCIENCE > BIOSPHERE > VEGETATION > NUTRIENTS
    - subject (subjectScheme=NASA/GCMD Earth Science Keywords): EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY
    - subject (subjectScheme=NASA/GCMD Earth Science Keywords): EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > BIOGEOCHEMICAL PROCESSES
    - subject (subjectScheme=NASA/GCMD Earth Science Keywords): EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > BIOGEOCHEMICAL PROCESSES > CHEMICAL DECOMPOSITION
    - subject (subjectScheme=NASA/GCMD Earth Science Keywords): EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROCESSES > CHEMICAL WEATHERING
    - subject (subjectScheme=NASA/GCMD Earth Science Keywords): EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROPERTIES > ISOTOPES
  - contributors
    - contributor (contributorType=DataCollector)
      - contributorName (nameType=Personal): Cai, Di
      - givenName: Di
      - familyName: Cai
      - nameIdentifier (nameIdentifierScheme=ORCID): 0000-0001-9535-4589
      - affiliation: GFZ German ResGFZ German Research Centre for Geosciences, Potsdam, Germany
    - contributor (contributorType=DataCurator)
      - contributorName (nameType=Personal): Henehan, Michael
      - givenName: Michael
      - familyName: Henehan
      - nameIdentifier (nameIdentifierScheme=ORCID): 0000-0003-4706-1233
      - affiliation: GFZ German Research Centre for Geosciences, Potsdam, Germany
    - contributor (contributorType=Supervisor)
      - contributorName (nameType=Personal): von Blanckenburg, Friedhelm
      - givenName: Friedhelm
      - familyName: von Blanckenburg
      - nameIdentifier (nameIdentifierScheme=ORCID): 0000-0002-2964-717X
      - affiliation: GFZ German Research Centre for Geosciences, Potsdam, Germany
    - contributor (contributorType=DataCurator)
      - contributorName (nameType=Personal): Uhlig, David
      - givenName: David
      - familyName: Uhlig
      - nameIdentifier (nameIdentifierScheme=ORCID): 0000-0002-0954-689X
      - affiliation: Institute of Bio and Geosciences (IBG-3), Jülich, Germany
    - contributor (contributorType=HostingInstitution)
      - contributorName: HELGES – Helmholtz-Laboratory for the Geochemistry of the Earth Surface
      - affiliation: GFZ German Research Centre for Geosciences, Potsdam, Germany
    - contributor (contributorType=ContactPerson)
      - contributorName: Cai, Di
      - affiliation: GFZ German Research Centre for Geosciences, Potsdam, Germany
    - contributor (contributorType=ContactPerson)
      - contributorName: von Blanckenburg, Friedhelm
      - affiliation: GFZ German Research Centre for Geosciences, Potsdam, Germany
  - resourceType (resourceTypeGeneral=Dataset): Dataset
  - relatedIdentifiers
    - relatedIdentifier (relatedIdentifierType=DOI relationType=References): 10.1111/ggr.12208
    - relatedIdentifier (relatedIdentifierType=DOI relationType=References): 10.3389/ffgc.2019.00085
    - relatedIdentifier (relatedIdentifierType=DOI relationType=References): 10.2138/rmg.2017.82.7
    - relatedIdentifier (relatedIdentifierType=DOI relationType=References): 10.3389/feart.2019.00159
    - relatedIdentifier (relatedIdentifierType=DOI relationType=References): 10.1029/2019GB006513
    - relatedIdentifier (relatedIdentifierType=DOI relationType=IsSupplementTo): 10.1016/j.gca.2022.01.011
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00LU
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00LY
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00M1
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00M1
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00M5
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00MB
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00MD
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00MF
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00N5
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00N8
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00N9
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00NB
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00NC
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00ND
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00LU
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00HJ
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00HN
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00HR
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00HT
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00MB
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00MD
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFJUB0065
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFJUB0066
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFJUB0067
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFJUB0068
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFJUB0069
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFJUB006A
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFJUB006B
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFJUB006C
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFJUB006D
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFJUB006E
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFJUB006F
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFJUB006G
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFJUB006H
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFJUB006J
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDIC0006
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDIC0007
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDIC0005
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDIC0004
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDIC0003
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDIC0002
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDIC0001
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00NH
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFJUB006K
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFJUB006L
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFJUB006M
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFJUB006N
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFJUB006P
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFJUB006Q
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFJUB006R
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFJUB006S
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFJUB006T
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFJUB006U
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFJUB006V
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFJUB006W
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFJUB006X
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFJUB006Y
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFJUB006Z
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDIC0009
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDIC0008
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00HE
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00J1
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00J2
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00HH
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00HK
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00HL
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00HM
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00HP
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00JA
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00HS
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00HT
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00MC
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00ME
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00MF
    - relatedIdentifier (relatedIdentifierType=IGSN relationType=IsDerivedFrom): GFDUH00MG
  - sizes:
  - formats:
  - rightsList
    - rights (rightsURI=http://creativecommons.org/licenses/by/4.0/): CC BY 4.0
  - descriptions
    - description (descriptionType=Abstract)
      - br:
      - br:
    - description (descriptionType=Methods)
      - br:
      - br:
      - br:
      - br:
  - geoLocations
    - geoLocation
      - geoLocationBox
        westBoundLongitude: 7.96466
        eastBoundLongitude: 7.96607
        southBoundLatitude: 48.0207
        northBoundLatitude: 48.0201
iso19115: / download xml
- MD_Metadata (xsi:schemaLocation=http://www.isotc211.org/2005/gmd http://www.isotc211.org/2005/gmd/gmd.xsd)
  - fileIdentifier
    - CharacterString: 10.5880/GFZ.3.3.2021.005
  - language
    - LanguageCode (codeList=http://www.loc.gov/standards/iso639-2/ codeListValue=eng): eng
  - characterSet
    - MD_CharacterSetCode (codeListValue=utf8 codeList=http://www.isotc211.org/2005/resources/codeList.xml#MD_CharacterSetCode):
  - hierarchyLevel
    - MD_ScopeCode (codeList=http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_ScopeCode codeListValue=dataset): dataset
  - hierarchyLevelName
    - CharacterString:
  - contact
    - CI_ResponsibleParty
      - organisationName
        CharacterString: GFZ German Research Centre for Geosciences
      - contactInfo
        CI_Contact
        address
        CI_Address
        electronicMailAddress
        CharacterString: datapub(_at_)gfz-potsdam.de
        onlineResource
        CI_OnlineResource
        linkage
        URL: http://www.gfz-potsdam.de
        name
        CharacterString: Helmholtz-Centre Potsdam - GFZ German Research Centre for Geosciences
        description
        CharacterString: Helmholtz-Centre Potsdam - GFZ German Research Centre for Geosciences
      - role
        CI_RoleCode (codeList=http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode codeListValue=pointOfContact): pointOfContact
  - dateStamp
    - Date: 2022-02-16
  - referenceSystemInfo
    - MD_ReferenceSystem
      - referenceSystemIdentifier
        RS_Identifier
        code
        CharacterString: urn:ogc:def:crs:EPSG:4326
  - identificationInfo
    - MD_DataIdentification
      - citation
        CI_Citation
        title
        CharacterString: Dataset on Biogeochemical cycling of Mg and Li isotopes in the Conventwald (the Black Forest, Germany)
        date
        CI_Date
        date
        Date: 2022-02-16
        dateType
        CI_DateTypeCode (codeList=http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode codeListValue=revision): revision
        identifier
        MD_Identifier
        code
        CharacterString: doi:10.5880/GFZ.3.3.2021.005
        citedResponsibleParty (xlink:href=http://orcid.org/0000-0001-9535-4589)
        CI_ResponsibleParty
        individualName
        CharacterString: Cai, Di
        organisationName
        CharacterString: GFZ German ResGFZ German Research Centre for Geosciences, Potsdam, Germany
        role
        CI_RoleCode (codeList=http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode codeListValue=author): author
        citedResponsibleParty (xlink:href=http://orcid.org/0000-0003-4706-1233)
        CI_ResponsibleParty
        individualName
        CharacterString: Henehan, Michael
        organisationName
        CharacterString: GFZ German Research Centre for Geosciences, Potsdam, Germany
        role
        CI_RoleCode (codeList=http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode codeListValue=author): author
        citedResponsibleParty (xlink:href=http://orcid.org/0000-0002-2964-717X)
        CI_ResponsibleParty
        individualName
        CharacterString: von Blanckenburg, Friedhelm
        organisationName
        CharacterString: GFZ German Research Centre for Geosciences, Potsdam, Germany
        role
        CI_RoleCode (codeList=http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode codeListValue=author): author
        citedResponsibleParty (xlink:href=http://orcid.org/0000-0002-0954-689X)
        CI_ResponsibleParty
        individualName
        CharacterString: Uhlig, David
        organisationName
        CharacterString: Institute of Bio and Geosciences (IBG-3), Jülich, Germany
        role
        CI_RoleCode (codeList=http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode codeListValue=author): author
        citedResponsibleParty
        CI_ResponsibleParty
        individualName
        CharacterString: HELGES – Helmholtz-Laboratory for the Geochemistry of the Earth Surface
        organisationName
        CharacterString: GFZ German Research Centre for Geosciences, Potsdam, Germany
        role
        CI_RoleCode (codeList=http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode codeListValue=originator): originator
        citedResponsibleParty
        CI_ResponsibleParty
        organisationName
        CharacterString: GFZ Data Services
        role
        CI_RoleCode (codeList=http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode codeListValue=publisher): publisher
      - abstract
        CharacterString: This data set contains chemical and Mg isotope analyses of time-series creek water, subsurface flow (0-15cm and 15-150cm), vegetation, regolith, clay-sized fraction and exchangeable fraction of regolith from a catchment of the Black Forest, Germany. This dataset is a following work of “Uhlig, D., & von Blanckenburg, F. (2019)", in which major and trace elements concentrations and 87Sr/86Sr isotope data was reported on the same batch of samples. With the new Mg isotope analyses, we investigated the potential controlling factors on water Mg isotopic composition, and we found exchange reactions in our catchment are a primary control on water chemistry. To further interrogate this finding, a batch of adsorption and desorption experiments using soil samples from our study site were carried out. The adsorption and desorption experiment results are also included here. This combination of field research and lab experiments informs about processes fractionating Mg in the critical zone – with the role of the exchangeable pool highlighted as particularly important – and further verifies the potential of Mg isotopes as a tool in tracing continental weathering process. Samples are assigned with International Geo Sample Numbers (IGSN), a globally unique and persistent Identifier for physical samples.
      - pointOfContact
        CI_ResponsibleParty
        individualName
        CharacterString: Cai, Di
        organisationName
        CharacterString: GFZ German Research Centre for Geosciences, Potsdam, Germany
        positionName
        CharacterString: Ph.D student
        contactInfo
        CI_Contact
        address
        CI_Address
        electronicMailAddress
        CharacterString: dcai(_at_)gfz-potsdam.de
        role
        CI_RoleCode (codeList=http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode codeListValue=pointOfContact): pointOfContact
      - pointOfContact
        CI_ResponsibleParty
        individualName
        CharacterString: von Blanckenburg, Friedhelm
        organisationName
        CharacterString: GFZ German Research Centre for Geosciences, Potsdam, Germany
        positionName
        CharacterString: Professor
        contactInfo
        CI_Contact
        address
        CI_Address
        electronicMailAddress
        CharacterString: fvb(_at_)gfz-potsdam.de
        role
        CI_RoleCode (codeList=http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode codeListValue=pointOfContact): pointOfContact
      - descriptiveKeywords
        MD_Keywords
        keyword
        CharacterString: Mg isotopes
        keyword
        CharacterString: Nutrient recycling
        keyword
        CharacterString: the Black Forest
        keyword
        CharacterString: Chemical weathering
      - descriptiveKeywords
        MD_Keywords
        keyword
        CharacterString: EARTH SCIENCE > BIOSPHERE > AQUATIC ECOSYSTEMS > RIVERS/STREAM HABITAT
        keyword
        CharacterString: EARTH SCIENCE > BIOSPHERE > VEGETATION > NUTRIENTS
        keyword
        CharacterString: EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY
        keyword
        CharacterString: EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > BIOGEOCHEMICAL PROCESSES
        keyword
        CharacterString: EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > BIOGEOCHEMICAL PROCESSES > CHEMICAL DECOMPOSITION
        keyword
        CharacterString: EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROCESSES > CHEMICAL WEATHERING
        keyword
        CharacterString: EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROPERTIES > ISOTOPES
        thesaurusName
        CI_Citation
        title
        CharacterString: NASA/GCMD Earth Science Keywords
        date
        CI_Date
        date (gco:nilReason=missing):
        dateType
        CI_DateTypeCode (codeList=http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode codeListValue=publication): publication
      - resourceConstraints (xlink:href=http://creativecommons.org/licenses/by/4.0/)
        MD_Constraints
        useLimitation
        CharacterString: CC BY 4.0
      - resourceConstraints
        MD_LegalConstraints
        accessConstraints
        MD_RestrictionCode (codeList=http://www.isotc211.org/2005/resources/codeList.xml#MD_RestrictionCode codeListValue=otherRestrictions):
        otherConstraints
        CharacterString: CC BY 4.0
      - resourceConstraints
        MD_SecurityConstraints
        classification
        MD_ClassificationCode (codeList=http://www.isotc211.org/2005/resources/codeList.xml#MD_ClassificationCode codeListValue=unclassified):
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: 10.1111/ggr.12208
        codeSpace
        CharacterString: DOI
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=References): References
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: 10.3389/ffgc.2019.00085
        codeSpace
        CharacterString: DOI
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=References): References
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: 10.2138/rmg.2017.82.7
        codeSpace
        CharacterString: DOI
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=References): References
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: 10.3389/feart.2019.00159
        codeSpace
        CharacterString: DOI
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=References): References
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: 10.1029/2019GB006513
        codeSpace
        CharacterString: DOI
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=References): References
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: 10.1016/j.gca.2022.01.011
        codeSpace
        CharacterString: DOI
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsSupplementTo): IsSupplementTo
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00LU
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00LY
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00M1
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00M1
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00M5
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00MB
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00MD
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00MF
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00N5
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00N8
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00N9
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00NB
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00NC
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00ND
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00LU
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00HJ
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00HN
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00HR
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00HT
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00MB
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00MD
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFJUB0065
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFJUB0066
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFJUB0067
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFJUB0068
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFJUB0069
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFJUB006A
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFJUB006B
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFJUB006C
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFJUB006D
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFJUB006E
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFJUB006F
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFJUB006G
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFJUB006H
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFJUB006J
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDIC0006
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDIC0007
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDIC0005
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDIC0004
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDIC0003
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDIC0002
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDIC0001
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00NH
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFJUB006K
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFJUB006L
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFJUB006M
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFJUB006N
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFJUB006P
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFJUB006Q
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFJUB006R
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFJUB006S
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFJUB006T
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFJUB006U
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFJUB006V
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFJUB006W
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFJUB006X
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFJUB006Y
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFJUB006Z
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDIC0009
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDIC0008
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00HE
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00J1
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00J2
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00HH
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00HK
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00HL
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00HM
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00HP
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00JA
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00HS
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00HT
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00MC
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00ME
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00MF
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - aggregationInfo
        MD_AggregateInformation
        aggregateDataSetIdentifier
        RS_Identifier
        code
        CharacterString: GFDUH00MG
        codeSpace
        CharacterString: IGSN
        associationType
        DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=IsDerivedFrom): IsDerivedFrom
      - language
        CharacterString: eng
      - characterSet
        MD_CharacterSetCode (codeListValue=utf8 codeList=http://www.isotc211.org/2005/resources/codeList.xml#MD_CharacterSetCode):
      - topicCategory
        MD_TopicCategoryCode: geoscientificInformation
      - extent
        EX_Extent
        geographicElement
        EX_GeographicBoundingBox
        westBoundLongitude
        Decimal: 7.96466
        eastBoundLongitude
        Decimal: 7.96607
        southBoundLatitude
        Decimal: 48.0207
        northBoundLatitude
        Decimal: 48.0201
  - distributionInfo
    - MD_Distribution
      - transferOptions
        MD_DigitalTransferOptions
        onLine
        CI_OnlineResource
        linkage
        URL: http://doi.org/10.5880/GFZ.3.3.2021.005
        protocol
        CharacterString: WWW:LINK-1.0-http--link
        name
        CharacterString: Data Access - DOI
        description
        CharacterString: Data Access - DOI
        function
        CI_OnLineFunctionCode (codeList=http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode codeListValue=http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode_information): information
  - dataQualityInfo
    - DQ_DataQuality
      - scope
        DQ_Scope
        level
        MD_ScopeCode (codeListValue=dataset codeList=http://www.isotc211.org/2005/resources/codeList.xml#MD_ScopeCode):
      - lineage
        LI_Lineage
        statement
        CharacterString: Briefly, shallow regolith was sampled at depth increments of 20 cm in a 3 m deep trench. Deeper regolith beyond 3 m was retrieved using diesel-powered wireline core-drilling to ~20 m. Time series water samples were collected from 01.03.2015 to 25.02.2016. Open rainfall and throughfall were collected biweekly in bulk container coved by a netting mesh. Creek discharge was collected daily at midnight by autosampler. Groundwater was sampled daily by an autosampler. The groundwater table level was monitored by a pressure probe installed 8.5 m below the surface. Subsurface flow from subsurface flow collectors was collected at two depths intervals: 0-15 cm, 15-150 cm. All the water samples were acidified and stored at 4 ˚C before analysis. Living wood, beech leaves and spruce needles were collected from representative mature and young trees. All measurements were performed in the Helmholtz Laboratory for the Geochemistry of the Earth Surface (HELGES) at GFZ Potsdam. Soil, saprolite, the extracted clay-sized fraction, primary minerals, and bedrock were dissolved by acid digestion using a mixture of concentrated HF and HNO3 in PFA vials. Aqua regia was also applied to assist digestion after HF and HNO3 treatment. Elemental concentrations of the filtered supernatant, water samples, and acid digested solution were analyzed by inductively coupled plasma optical emission spectrometry (ICP-OES, Varian 720-ES). Relative uncertainties are better than 5% for Mg based on repeat analyses of the international reference materials SLRS‐6 (river water, NRC CNRC), BHVO-2 (Basalt, USGS), SRM2709a (soil, USGS) and synthetic in-house standards. Mg isotopes were measured via multicollector inductively coupled plasma mass spectrometry (MC-ICPMS, Thermo Neptune) using DSM3 as bracketing standard to correct for instrumental mass bias.