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Metadata Files

Data Publication

Accessory Minerals in Felsic Igneous Rocks - Part 1: Composition of monazite-(Ce), xenotime-(Y) and zircon from the multi-stage, peraluminous two-mica granite massif of Bergen (Erzgebirge−Vogtland metallogenic province, Germany)

Förster, Hans-Jürgen

GFZ Data Services

(2018)

Descriptions

This data set compiles the results of electron-microprobe spot analyses of monazite-(Ce), xenotime-(Y) and zircon from the two-mica granite massif of Bergen. This massif is composed of compositionally and texturally distinct sub-intrusions, which occasionally contain dark microgranular enclaves and are cross-cut by aplitic dikes. These late-Variscan (c. 325 Ma) granites are evolved, Si-rich (70.6−76.3 wt% SiO2), of transitional I−S-type affinity, and spatially associated with minor W−Mo mineralization. Data indicate that the composition of monazite-(Ce) and zircon changes with fractionation-driven evolution of magma chemistry. In the course of magma differentiation, monazite-(Ce) chemistry evolves towards enrichment Th and U and development of “irregular” chondrite-normalized LREE patterns, with negative anomalies at La or Nd, or both. Monazite-(Ce) precipitated from more evolved magma batches also tends to be richer in MREE and HREE relative to that occurring in early-stage granites. Composition of zircon in more differentiated sub-intrusions displays a large variability. A greater number of grains or domains are distinguished by enrichment in P, Hf, Al, Sc, Y+HREE and low analytical totals, reflecting their crystallization from volatile-rich magmas and/or their interaction with late-magmatic fluids. Xenotime-(Y) chemistry is comparatively insensitive to changes of magma composition that characterized the Bergen massif. The data set published here contains the complete pile of elecron-microprobe analyses for the three accessory minerals monazite-(Ce) (MonaBrg2018), xenotime-(Y) (XenoBRG2018) and zirkon (ZircBRG2018). All tables are presented as Excel (.xlsx) and csv formats. The content of the tables and further data description are given in the data description file.

Keywords


Originally assigned keywords
monazite
xenotime
zircon
mineral composition
two-mica granite
leucogranite
magma differentiation
electron-microprobe analysis
rare earth elements
uranium
thorium
Variscan orogeny
late Carboniferous
Erzgebirge-Vogtland

Corresponding MSL vocabulary keywords
monazite
zircon
uranium
thorium

MSL enriched keywords
minerals
phosphate minerals
monazite
silicate minerals
nesosilicates
zircon
measured property
uranium
thorium
igneous rock - intrusive
acidic intrusive
granite
phyllosilicates
mica
magma
equipment
electron probe micro-analyzer
aluminium
hafnium
neodymium
scandium
Apparatus
microchemical analysis
electron probe micro analyser

MSL enriched sub domains i

geochemistry
microscopy and tomography

Source

https://dataservices.gfz-potsdam.de/panmetaworks/showshort.php?id=escidoc:2892888

Source publisher

GFZ Data Services


DOI

10.5880/gfz.6.2.2018.001


Creators

Förster, Hans-Jürgen

GFZ German Research Centre for Geosciences, Potsdam, Germany


Contributors

Rhede, Dieter

Other

GFZ German Research Centre for Geosciences, Potsdam, Germany

Appelt, Oona

Other

GFZ German Research Centre for Geosciences, Potsdam, Germany


References

http://www.minsocam.org/ammin/AM60/AM60_599.pdf

10.1016/0016-7037(89)90286-x

http://www.minsocam.org/msa/AmMin/TOC/Articles_Free/1998/Forster_p1302-1315_98.pdf

http://www.minsocam.org/msa/AmMin/TOC/Articles_Free/1998/Forster_p259-272_98.pdf

10.1093/petroj/40.11.1613

10.1016/0009-2541(72)90016-2

10.1111/j.1751-908x.1991.tb00115.x


Citation

Förster, H.-J. (2018). Accessory Minerals in Felsic Igneous Rocks - Part 1: Composition of monazite-(Ce), xenotime-(Y) and zircon from the multi-stage, peraluminous two-mica granite massif of Bergen (Erzgebirge−Vogtland metallogenic province, Germany) [Data set]. GFZ Data Services. https://doi.org/10.5880/GFZ.6.2.2018.001


Dates

Collected:

1995/2000

Issued:

2018


Language

en


Rights

CC BY 4.0


Geo location(s)

Bergen Pluton (surface expression)


Spatial coordinates