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false4DOIDB.GFZ 10.5880/GFZ.6.2.2018.001 Förster, Hans-Jürgen Hans-Jürgen Förster GFZ German Research Centre for Geosciences, Potsdam, Germany 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) GFZ Data Services 2018 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 Rhede, Dieter Dieter Rhede GFZ German Research Centre for Geosciences, Potsdam, Germany Appelt, Oona Oona Appelt GFZ German Research Centre for Geosciences, Potsdam, Germany 1995/2000 eng Dataset 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 1512694 Bytes 5 Files application/vnd.ms-excel application/vnd.ms-excel application/vnd.ms-excel application/x-zip-compressed application/pdf CC BY 4.0 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. 12.254219055175781 12.342453002929688 50.466246274560476 50.53350751354044 Bergen Pluton (surface expression)