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Metadata Files

Data Publication

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

GFZ Data Services

(2021)

Descriptions

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.

Keywords


Originally assigned keywords
mineral composition
magma differentiation
electron-probe microanalysis
Erzgebirge-Vogtland
Variscan orogen
Saxothuringian Zone
felsic igneous rock
granite
fluorapatite
EARTH SCIENCE > SOLID EARTH > ROCKS/MINERALS/CRYSTALS > ELEMENTS
EARTH SCIENCE > SOLID EARTH > ROCKS/MINERALS/CRYSTALS > IGNEOUS ROCKS
EARTH SCIENCE > SOLID EARTH > ROCKS/MINERALS/CRYSTALS > MINERALS

Corresponding MSL vocabulary keywords
granite
fluorapatite

MSL enriched keywords
igneous rock - intrusive
acidic intrusive
granite
minerals
phosphate minerals
fluorapatite
carbonate minerals
apatite
silicate minerals
phyllosilicates
mica
biotite
Phanerozoic
Paleozoic
Carboniferous
equipment
electron probe micro-analyzer
measured property
iron
manganese
sodium
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=cb6f7d1d-4e98-11eb-9603-497c92695674

Source publisher

GFZ Data Services


DOI

10.5880/gfz.4.8.2021.002


Creators

Förster, Hans-Jürgen

GFZ German Research Centre for Geosciecnces, Potsdam, Germany

ORCID:

https://orcid.org/0000-0002-4654-0382

Gottesmann, Bärbel

GFZ German Research Centre for Geosciecnces, Potsdam, Germany

ORCID:

https://orcid.org/0000-0002-2198-6062


Contributors

Förster, Hans-Jürgen

ContactPerson

GFZ German Research Centre for Geosciecnces, Potsdam, Germany

ORCID:

https://orcid.org/0000-0002-4654-0382

Förster, Hans-Jürgen

ContactPerson

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_p259-272_98.pdf

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

10.1093/petroj/40.11.1613

10.1127/0077-7757/2009/0138

10.1127/ejm/9/3/0491

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

10.5880/gfz.6.2.2018.001

10.5880/gfz.6.2.2018.002

10.5880/gfz.4.8.2019.001

10.5880/gfz.4.8.2019.002


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


Dates

Issued:

2021


Rights

Creative Commons Attribution 4.0 International


Spatial coordinates