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Apatite from NWA 10153 and NWA 10645—The Key to Deciphering Magmatic and Fluid Evolution History in Nakhlites
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SYSNO ASEP 0518665 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Apatite from NWA 10153 and NWA 10645—The Key to Deciphering Magmatic and Fluid Evolution History in Nakhlites Author(s) Birski, L. (PL)
Słaby, E. (PL)
Chatzitheodoridis, E. (GR)
Wirth, R. (DE)
Majzner, K. (PL)
Kozub-Budzyń, G. A. (PL)
Sláma, Jiří (GLU-S) SAI, RID, ORCID
Liszewska, K. (PL)
Kocjan, I. (PL)
Zagórska, A. (PL)Article number 695 Source Title Minerals. - : MDPI
Roč. 9, č. 11 (2019)Number of pages 22 s. Publication form Print - P Language eng - English Country CH - Switzerland Keywords fluorapatite ; chlorapatite ; amorphous calcium phosphate ; volatiles ; nakhlite ; TEM ; EPMA ; Raman imaging ; LA-ICP-MS Subject RIV DB - Geology ; Mineralogy OECD category Geology Method of publishing Open access Institutional support GLU-S - RVO:67985831 UT WOS 000502267100048 EID SCOPUS 85074955438 DOI 10.3390/min9110695 Annotation Apatites from Martian nakhlites NWA 10153 and NWA 10645 were used to obtain insight into their crystallization environment and the subsequent postcrystallization evolution path. The research results acquired using multi-tool analyses show distinctive transformation processes that were not fully completed. The crystallization history of three apatite generations (OH-bearing, Cl-rich fluorapatite as well as OH-poor, F-rich chlorapatite and fluorapatite) were reconstructed using transmission electron microscopy and geochemical analyses. Magmatic OH-bearing, Cl-rich fluorapatite changed its primary composition and evolved toward OH-poor, F-rich chlorapatite because of its interaction with fluids. Degassing of restitic magma causes fluorapatite crystallization, which shows a strong structural a nity for the last episode of system evolution. In addition to the three apatite generations, a fourth amorphous phase of calcium phosphate has been identified with Raman spectroscopy. This amorphous phase may be considered a transition phase between magmatic and hydrothermal phases. It may give insight into the dissolution process of magmatic phosphates, help in processing reconstruction, and allow to decipher mineral interactions with hydrothermal fluids. Workplace Institute of Geology Contact Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272 Year of Publishing 2020 Electronic address https://www.mdpi.com/2075-163X/9/11/695
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