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δ13C(organic), C/N mass ratios and %TOC for Continent Ridge core CON01-603-5

Cite as:

Swann, George; Mackay, Anson; Leng, Melanie; Demory, Francois (2006): δ13C(organic), C/N mass ratios and %TOC for Continent Ridge core CON01-603-5. Deutsches GeoForschungsZentrum GFZ. http://doi.org/10.1594/GFZ.SDDB.1053

Status

I   N       R   E   V   I   E   W : Swann, George; Mackay, Anson; Leng, Melanie; Demory, Francois (2006): δ13C(organic), C/N mass ratios and %TOC for Continent Ridge core CON01-603-5. Deutsches GeoForschungsZentrum GFZ. http://doi.org/10.1594/GFZ.SDDB.1053

Abstract

C/N mass ratios remain constant throughout MIS 3 and into MIS 2, with values between 6.3 and 8.9, indicating no significant terrestrial input of organic matter (Fig. 3). Low %TOC values during the interstadial increase from 0.4 to 0.7 between 57.8 and 43.7 kyr BP with a concurrent gradual increase in δ13C(organic) amid oscillations between −23.2‰ and −26.1‰ (Fig. 3). %TOC falls to 0.4 between 40.9 and 39.4 kyr BP whereas δ13C(organic) remains high at c. 24‰ with a peak value of −23.6‰ at 39.4 kyr BP. The subsequent two-stage increase in %TOC from 39 to 37.9 kyr BP and between 37.3 and 36.9 kyr BP is marked by a period of δ13C(organic) lowering to c. −26.6‰ before δ13C(organic) increases after 37.9 kyr BP to −24.8‰, values comparable to those prior to the %TOC decline at 40.9 kyr BP.

Contact

  • Deutsches GeoForschungsZentrum GFZ

Keywords

δ13C, age (calendar years), Carbon/Nitrogen ratio, total organic carbon

GCMD Science Keywords

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      • creators
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          • creatorName: Mackay, Anson
        • creator
          • creatorName: Leng, Melanie
        • creator
          • creatorName: Demory, Francois
      • titles
        • title: δ13C(organic), C/N mass ratios and %TOC for Continent Ridge core CON01-603-5
      • publisher: Deutsches GeoForschungsZentrum GFZ
      • publicationYear: 2006
      • subjects
        • subject (subjectScheme=project): Vereshchagin Long Cores Expedition 2001
        • subject (subjectScheme=platform): R/V Vereshchagin
        • subject (subjectScheme=keyword): δ13C
        • subject (subjectScheme=keyword): age (calendar years)
        • subject (subjectScheme=keyword): AMS
        • subject (subjectScheme=keyword): calculation
        • subject (subjectScheme=keyword): Carbon/Nitrogen ratio
        • subject (subjectScheme=keyword): correlation of paleointensity records
        • subject (subjectScheme=keyword): total organic carbon
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        • description (descriptionType=Abstract): C/N mass ratios remain constant throughout MIS 3 and into MIS 2, with values between 6.3 and 8.9, indicating no significant terrestrial input of organic matter (Fig. 3). Low %TOC values during the interstadial increase from 0.4 to 0.7 between 57.8 and 43.7 kyr BP with a concurrent gradual increase in δ13C(organic) amid oscillations between −23.2‰ and −26.1‰ (Fig. 3). %TOC falls to 0.4 between 40.9 and 39.4 kyr BP whereas δ13C(organic) remains high at c. 24‰ with a peak value of −23.6‰ at 39.4 kyr BP. The subsequent two-stage increase in %TOC from 39 to 37.9 kyr BP and between 37.3 and 36.9 kyr BP is marked by a period of δ13C(organic) lowering to c. −26.6‰ before δ13C(organic) increases after 37.9 kyr BP to −24.8‰, values comparable to those prior to the %TOC decline at 40.9 kyr BP.
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        • Dataset_Title: δ13C(organic), C/N mass ratios and %TOC for Continent Ridge core CON01-603-5
        • Dataset_Release_Date: 2006-09-15
        • Dataset_Release_Place: Potsdam, Germany
        • Dataset_Publisher: Deutsches GeoForschungsZentrum GFZ
        • Data_Presentation_Form: Dataset
        • Online_Resource: http://dx.doi.org/10.1594/GFZ.SDDB.1053
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        • Topic: Paleoclimate
        • Term: Ocean/Lake Records
        • Variable_Level_1: Isotopes
      • Keyword: δ13C
      • Keyword: age (calendar years)
      • Keyword: Carbon/Nitrogen ratio
      • Keyword: total organic carbon
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      • Project
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        • Long_Name: High-resolution CONTINENTal paleoclimate record in Lake Baikal
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        • Other_Reference_Details: G.E.A. Swann, A.W. Mackay, M.J. Leng and F. Demory, Climatic change in Central Asia during MIS 3/2: a case study using biological responses from Lake Baikal, Glob. Planet. Change 46 (2005), pp. 235–253.
      • Summary
        • Abstract: C/N mass ratios remain constant throughout MIS 3 and into MIS 2, with values between 6.3 and 8.9, indicating no significant terrestrial input of organic matter (Fig. 3). Low %TOC values during the interstadial increase from 0.4 to 0.7 between 57.8 and 43.7 kyr BP with a concurrent gradual increase in δ13C(organic) amid oscillations between −23.2‰ and −26.1‰ (Fig. 3). %TOC falls to 0.4 between 40.9 and 39.4 kyr BP whereas δ13C(organic) remains high at c. 24‰ with a peak value of −23.6‰ at 39.4 kyr BP. The subsequent two-stage increase in %TOC from 39 to 37.9 kyr BP and between 37.3 and 36.9 kyr BP is marked by a period of δ13C(organic) lowering to c. −26.6‰ before δ13C(organic) increases after 37.9 kyr BP to −24.8‰, values comparable to those prior to the %TOC decline at 40.9 kyr BP.
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      • title: δ13C(organic), C/N mass ratios and %TOC for Continent Ridge core CON01-603-5
      • date: 2006
      • subject: Vereshchagin Long Cores Expedition 2001
      • subject: R/V Vereshchagin
      • subject: δ13C
      • subject: age (calendar years)
      • subject: AMS
      • subject: calculation
      • subject: Carbon/Nitrogen ratio
      • subject: correlation of paleointensity records
      • subject: total organic carbon
      • subject: AMS
      • identifier: 10.1594/GFZ.SDDB.1053
      • creator: Swann, George
      • creator: Mackay, Anson
      • creator: Leng, Melanie
      • creator: Demory, Francois
      • description: C/N mass ratios remain constant throughout MIS 3 and into MIS 2, with values between 6.3 and 8.9, indicating no significant terrestrial input of organic matter (Fig. 3). Low %TOC values during the interstadial increase from 0.4 to 0.7 between 57.8 and 43.7 kyr BP with a concurrent gradual increase in δ13C(organic) amid oscillations between −23.2‰ and −26.1‰ (Fig. 3). %TOC falls to 0.4 between 40.9 and 39.4 kyr BP whereas δ13C(organic) remains high at c. 24‰ with a peak value of −23.6‰ at 39.4 kyr BP. The subsequent two-stage increase in %TOC from 39 to 37.9 kyr BP and between 37.3 and 36.9 kyr BP is marked by a period of δ13C(organic) lowering to c. −26.6‰ before δ13C(organic) increases after 37.9 kyr BP to −24.8‰, values comparable to those prior to the %TOC decline at 40.9 kyr BP.

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