Accessory Minerals in Felsic Igneous Rocks - Part 8: Composition of fluorapatite from late-Variscan granites of the Erzgebirge−Vogtland metallogenic province, Germany

Förster, Hans-Jürgen; Gottesmann, Bärbel;

2021 || GFZ Data Services

This data set is the part 8 of a series reporting chemical data for accessory minerals from felsic igneous rocks. Compositional data were acquired by electron-probe microanalysis (EPMA) between about 1995 and 2005 on surface rocks and borehole samples.

This data set assembles the results of EPMA of fluorapatite from felsic rocks representing three groups of granites in the Erzgebirge−Vogtland metallogenic province of Germany emplaced in the late Carboniferous: F-poor biotite granites, F-poor two-mica granites, and P-F-rich Li-mica granite. In these rocks, fluorapatite is typically omnipresent.

It has to be noted that apatite has not yet been in the focus of mineralogical studies of the granites in this province and a comprehensive survey of its compositional signature and variability in space and time is still pending. However, the data listed in this data set provide a valuable glimpse into the similarities and differences in apatite chemistry between geochemically distinct felsic rocks, and into the evolution in composition from early to late crystallizing apatite populations. The data underpin that apatite is a sensitive monitor of the compositional properties of the media (melts and fluids) from which it was deposited or with which it interacted.

Apatite from the studied rocks is basically fluorapatite with little or no Cl and OH detected respectively inferred. Elemental variations are observed at various scales, i.e., between granite groups, subsequently crystallized sub-intrusion within composite massifs, grains present in a single thin section, or between the center and the rim of a particular grain. These variations in particular refer to the following elements: Mn, Fe, Na, and the rare-earth elements (REE). For example, measured Mn concentrations range from 0.15 to 8.8 wt% MnO.

The data set contains the complete pile of electron-microprobe analyses for fluorapatite (APAT-ERZ-2020). The data are presented as Excel (xlsx) and tab-delimited text (txt) formats. The content of the tables and further information on the granites and regional geology are provided in the data description file.

Originally assigned keywords

Corresponding MSL vocabulary keywords

MSL enriched keywords

MSL enriched sub domains
  • geochemistry
  • microscopy and tomography
Source http://dx.doi.org/10.5880/gfz.4.8.2021.002
Source publisher GFZ Data Services
DOI 10.5880/gfz.4.8.2021.002
Authors
  • Förster, Hans-Jürgen
  • 0000-0002-4654-0382
  • GFZ German Research Centre for Geosciecnces, Potsdam, Germany;
  • Gottesmann, Bärbel
  • 0000-0002-2198-6062
  • GFZ German Research Centre for Geosciecnces, Potsdam, Germany;
Contributors
  • Förster, Hans-Jürgen
  • ContactPerson
  • 0000-0002-4654-0382
  • GFZ German Research Centre for Geosciecnces, Potsdam, Germany;
  • Förster, Hans-Jürgen
  • ContactPerson
  • GFZ German Research Centre for Geosciences, Potsdam, Germany;
References
  • Cites
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  • 10.1016/0016-7037(89)90286-X
  • Cites
  • Cites
  • Cites
  • Forster, H.-J., Tischendorf, G., Trumbull, R. B., & Gottesmann, B. (1999). Late-Collisional Granites in the Variscan Erzgebirge, Germany. Journal of Petrology, 40(11), 1613–1645. https://doi.org/10.1093/petroj/40.11.1613
  • 10.1093/petroj/40.11.1613
  • IsDocumentedBy
  • Förster, H.-J., Romer, R. L., Gottesmann, B., Tischendorf, G., & Rhede, D. (2009). Are the granites of the Aue-Schwarzenberg Zone (Erzgebirge, Germany) a major source for metalliferous ore deposits? A geochemical, Sr-Nd-Pb isotopic, and geochronological study. Neues Jahrbuch Für Mineralogie - Abhandlungen, 186(2), 163–184. https://doi.org/10.1127/0077-7757/2009/0138
  • 10.1127/0077-7757/2009/0138
  • IsDocumentedBy
  • Gottesmann, B., & Wirth, R. (1997). Pyrrhotite inclusions in dark pigmented apatite from granitic rocks. European Journal of Mineralogy, 9(3), 491–500. https://doi.org/10.1127/ejm/9/3/0491
  • 10.1127/ejm/9/3/0491
  • IsDocumentedBy
  • Jarosewich, E., & Boatner, L. A. (1991). Rare‐Earth Element Reference Samples for Electron Microprobe Analysis. Geostandards Newsletter, 15(2), 397–399. Portico. https://doi.org/10.1111/j.1751-908x.1991.tb00115.x
  • 10.1111/j.1751-908X.1991.tb00115.x
  • Cites
  • 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
  • 10.5880/GFZ.6.2.2018.001
  • References
  • Förster, H.-J. (2018). Accessory Minerals in Felsic Igneous Rocks - Part 2: Composition of monazite-(Ce), xenotime-(Y) and zircon from the multi-stage, strongly peraluminous, P-F-rich Li-mica granite massif of Eibenstock (Erzgebirge−Vogtland metallogenic province, Germany) [Data set]. GFZ Data Services. https://doi.org/10.5880/GFZ.6.2.2018.002
  • 10.5880/GFZ.6.2.2018.002
  • References
  • Förster, H.-J. (2019). Accessory Minerals in Felsic Igneous Rocks - Part 4: Composition of allanite-(Ce), monazite-(Ce), xenotime-(Y) and zircon from the multi-stage, weakly peraluminous F-poor granite massifs of Kirchberg and Niederbobritzsch (Erzgebirge−Vogtland metallogenic province, Germany) [Data set]. GFZ Data Services. https://doi.org/10.5880/GFZ.4.8.2019.001
  • 10.5880/GFZ.4.8.2019.001
  • References
  • Förster, H.-J. (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) [Data set]. GFZ Data Services. https://doi.org/10.5880/GFZ.4.8.2019.002
  • 10.5880/GFZ.4.8.2019.002
  • References
Contact
  • Förster, Hans-Jürgen
  • GFZ German Research Centre for Geosciences, Potsdam, Germany;
  • Förster, Hans-Jürgen
  • GFZ German Research Centre for Geosciences, Potsdam, Germany;
Citation Förster, H.-J., & Gottesmann, B. (2021). Accessory Minerals in Felsic Igneous Rocks - Part 8: Composition of fluorapatite from late-Variscan granites of the Erzgebirge−Vogtland metallogenic province, Germany [Data set]. GFZ Data Services. https://doi.org/10.5880/GFZ.4.8.2021.002
Spatial coordinates
  • eLong 13.2083
  • nLat 50.6392
  • sLat 50.4685
  • wLong 12.2612