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

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.
https://doi.org/10.5880/GFZ.4.8.2021.002

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Item Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5004759 Version Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5004759_2
Genre: Data Publication

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Locator:
https://doi.org/10.1093/petroj/40.11.1613 (Supplementary material)
Description:
Documented by : 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. doi:10.1093/petroj/40.11.1613
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https://doi.org/10.1127/0077-7757/2009/0138 (Supplementary material)
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Documented by : 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
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https://doi.org/10.1127/ejm/9/3/0491 (Supplementary material)
Description:
Documented by: 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

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 Creators:
Förster, H.-J.1, Author              
Gottesmann, Baerbel2, Author              
Affiliations:
14.8 Geoenergy, 4.0 Geosystems, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum, ou_146039              
23.2 Organic Geochemistry, 3.0 Geochemistry, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum, ou_146041              

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Free keywords: mineral composition, magma differentiation, electron-probe microanalysis, Erzgebirge-Vogtland, Variscan orogen, Saxothuringian Zone, felsic igneous rock, granite, fluorapatite
 Abstract: 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.

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Language(s): eng - English
 Dates: 2021
 Publication Status: Finally published
 Pages: -
 Publishing info: Potsdam : GFZ Data Services
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.5880/GFZ.4.8.2021.002
 Degree: -

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