Articles | Volume 33, issue 4
https://doi.org/10.5194/ejm-33-401-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/ejm-33-401-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
21 Jul 2021
Research article |
| 21 Jul 2021
| 21 Jul 2021
Geochemistry and paleogeographic implications of Permo-Triassic metasedimentary cover from the Tauern Window (Eastern Alps)
Gerhard Franz
CORRESPONDING AUTHOR
Technische Universität Berlin, Chair of Applied Geochemistry, 10587 Berlin, Germany
Martin Kutzschbach
Technische Universität Berlin, Chair of Applied Geochemistry, 10587 Berlin, Germany
Eleanor J. Berryman
CanmetMINING, Natural Resources Canada, Ottawa, K1A 0G1, Ontario,
Canada
Anette Meixner
Faculty of Geosciences & MARUM – Center for Marine Environmental
Sciences, University of Bremen, 28359 Bremen, Germany
Anselm Loges
Technische Universität Berlin, Chair of Applied Geochemistry, 10587 Berlin, Germany
Freie Universität Berlin, Chair of Mineralogy, 12249 Berlin, Germany
Dina Schultze
Technische Universität Berlin, Chair of Applied Geochemistry, 10587 Berlin, Germany
Freie Universität Berlin, Chair of Mineralogy, 12249 Berlin, Germany
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Short summary
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The age of formation of buddingtonite, ammonium-bearing feldspar, can be dated with the Ar–Ar method; however, it may often give only minimum ages due to strong resetting. In the studied example it gives a Precambrian minimum age of fossils, associated with this occurrence, and the age of the accompanying mineral muscovite indicates an age near 1.5 Ga. We encourage more dating attempts of buddingtonite, which will give valuable information of diagenetic or hydrothermal events.
Leonid Shumlyanskyy, Gerhard Franz, Sarah Glynn, Oleksandr Mytrokhyn, Dmytro Voznyak, and Olena Bilan
Eur. J. Mineral., 33, 703–716, https://doi.org/10.5194/ejm-33-703-2021, https://doi.org/10.5194/ejm-33-703-2021, 2021
Short summary
Short summary
In the paper we discuss the origin of large chamber pegmatite bodies which contain giant gem-quality crystals of black quartz (morion), beryl, and topaz. We conclude that these pegmatites develop under the influence of later intrusions of mafic rocks that cause reheating of the partly crystallized granite massifs and that they supply a large amount of fluids that facilitate the
inflationof pegmatite chambers and crystallization of giant crystals of various minerals.
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Short summary
Metamorphic rocks contain information about their original rocks and thus provide insight into the earlier stages of a region of interest. Here, we used the whole-rock chemical composition and stable boron isotopes of a suite of rocks from the Alps (Italy–Austria), which were deposited in a restricted intramontane basin before the Alpine orogeny. It is possible to reconstruct the depositional conditions for these sediments, which are now common metamorphic rocks such as schists and gneisses.
Metamorphic rocks contain information about their original rocks and thus provide insight into...
