Accessory Minerals in Felsic Igneous Rocks - Part 5: Composition of monazite-(Ce), xenotime-(Y) and zircon from two geochemically distinct occurrences of highly evolved Li-F granite: The Pobershau-Satzung massif and the Seiffen granite (Erzgebirge−Vogtland metallogenic province, Germany)
Cite as:
Förster, Hans-Jürgen (2019): Accessory Minerals in Felsic Igneous Rocks - Part 5: Composition of monazite-(Ce), xenotime-(Y) and zircon from two geochemically distinct occurrences of highly evolved Li-F granite: The Pobershau-Satzung massif and the Seiffen granite (Erzgebirge−Vogtland metallogenic province, Germany). GFZ Data Services. https://doi.org/10.5880/GFZ.4.8.2019.002
Status
I N R E V I E W : Förster, Hans-Jürgen (2019): Accessory Minerals in Felsic Igneous Rocks - Part 5: Composition of monazite-(Ce), xenotime-(Y) and zircon from two geochemically distinct occurrences of highly evolved Li-F granite: The Pobershau-Satzung massif and the Seiffen granite (Erzgebirge−Vogtland metallogenic province, Germany). GFZ Data Services. https://doi.org/10.5880/GFZ.4.8.2019.002
Abstract
This data set is the 5th fifth part of a series reporting chemical data for accessory minerals from felsic igneous rocks. Most data refer to plutonic rocks from the Saxothuringian Zone of the Variscan Orogen (Erzgebirge−Vogtland metallogenic province) in Germany performed between about 1995 and 2005 on surface rocks and borehole samples.
This data set assembles the results of electron-microprobe spot analyses of monazite-(Ce), xenotime-(Y) and zircon from two concealed, genetically distinct occurrences of evolved, F-rich Li-mica granite, that are the transitional S-I-type P-rich granites of Pobershau-Satzung (POB-SZU) and the P-poor granite of Seiffen (SEI), a representative of the class of aluminous A-type granites.
Of all three species, grains of abnormal composition are present, reflecting the evolved nature and specific composition of their granite hosts. The most striking differences in mineral composition between the two granite occurrences are displayed by a) the substitution reaction governing the incorporation of Th+U in monazite (cheralite substitution, Ca(Th,U)REE-2, in POB-SZU and huttonite substitution, Th(U)SiREE-1P-1, in SEI) and b) the chondrite-normalized REE patterns of xenotime (peaking at Tb-Dy in POB-SEI and Yb-Lu in SEI).
The data set contains the complete pile of electron-microprobe analyses for monazite-(Ce) (MONA-POB-SEI-NBZ2019), xenotime-(Y) (XENO-POB-SEI2019), and zircon (ZIRC-POB-SEI2019). All tables are presented as Excel (xlsx) and machine-readable csv formats. The content of the tables and further information on the granites and regional geology are provided in the data description file.
Authors
Förster, Hans-Jürgen;GFZ German Research Centre for Geosciences, Potsdam, Germany
Contact
Förster, Hans-Jürgen
(Senior Scientist); GFZ German Research Centre for Geosciences, Potsdam, Germany;
Contributors
Rhede, Dieter
Keywords
monazite, xenotime, zircon, mineral composition, magma differentiation, electron-microprobe analysis, rare earth elements, thorium, Variscan orogeny, late Carboniferous, Erzgebirge-Vogtland, F-rich Li-mica granite, transitional S-I-type P-rich granite, P-poor granite, aluminous A-type granite
affiliation (affiliationIdentifier=0000-0002-4654-0382 affiliationIdentifierScheme=ORCID): GFZ German Research Centre for Geosciences, Potsdam, Germany
titles
title: Accessory Minerals in Felsic Igneous Rocks - Part 5: Composition of monazite-(Ce), xenotime-(Y) and zircon from two geochemically distinct occurrences of highly evolved Li-F granite: The Pobershau-Satzung massif and the Seiffen granite (Erzgebirge−Vogtland metallogenic province, Germany)
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This data set assembles the results of electron-microprobe spot analyses of monazite-(Ce), xenotime-(Y) and zircon from two concealed, genetically distinct occurrences of evolved, F-rich Li-mica granite, that are the transitional S-I-type P-rich granites of Pobershau-Satzung (POB-SZU) and the P-poor granite of Seiffen (SEI), a representative of the class of aluminous A-type granites.
Of all three species, grains of abnormal composition are present, reflecting the evolved nature and specific composition of their granite hosts. The most striking differences in mineral composition between the two granite occurrences are displayed by a) the substitution reaction governing the incorporation of Th+U in monazite (cheralite substitution, Ca(Th,U)REE-2, in POB-SZU and huttonite substitution, Th(U)SiREE-1P-1, in SEI) and b) the chondrite-normalized REE patterns of xenotime (peaking at Tb-Dy in POB-SEI and Yb-Lu in SEI).
The data set contains the complete pile of electron-microprobe analyses for monazite-(Ce) (MONA-POB-SEI-NBZ2019), xenotime-(Y) (XENO-POB-SEI2019), and zircon (ZIRC-POB-SEI2019). All tables are presented as Excel (xlsx) and machine-readable csv formats. The content of the tables and further information on the granites and regional geology are provided in the data description file.
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