globalchange  > 影响、适应和脆弱性
DOI: 10.1007/s00531-015-1181-3
Scopus记录号: 2-s2.0-84958052306
论文题名:
Mineralogy and mineral chemistry of detrital heavy minerals from the Rhine River in Germany as evidence to their provenance, sedimentary and depositional history: focus on platinum-group minerals and remarks on cassiterite, columbite-group minerals and uraninite
作者: Oberthür T.; Melcher F.; Goldmann S.; Wotruba H.; Gerdes A.; Dijkstra A.; Dale C.W.
刊名: International Journal of Earth Sciences
ISSN: 14373254
出版年: 2016
卷: 105, 期:2
起始页码: 637
结束页码: 657
语种: 英语
英文关键词: Cassiterite ; Gold ; Mineral chemistry ; Mineralogy ; Platinum-group minerals (PGM) ; Rhine River ; Tapiolite ; Uraninite ; U–Pb dating
Scopus关键词: cassiterite ; columbite ; deposition ; fluvial deposit ; geochemistry ; gold ; heavy mineral ; mineralogy ; platinum group element ; provenance ; tapiolite ; uraninite ; uranium-lead dating ; Baden-Wurttemberg ; Black Forest ; Germany ; Rhine River
英文摘要: In the course of studying the gold-bearing heavy mineral spectrum of sediments from the upper Rhine River, a distinct suite of detrital grains comprising platinum-group minerals (PGM), cassiterite, columbite-group minerals and uraninite was identified and investigated using conventional and modern analytical methods. This study aimed to characterize the selected mineral groups mineralogically and geochemically in order to identify possible source areas and to reconstruct different aspects of the complex sedimentary history of the Rhine River sediments. The PGM assemblage is dominated by grains of Ru–Os–Ir alloys (~70 %), followed by Pt–Fe alloys, sperrylite and rare other PGM. Accordingly, this PGM assemblage represents highly mature, physically and chemically extremely resistant compounds which may have experienced and survived repeated reworking during their sedimentary history. Pt–Fe alloys and sperrylite may originate from various sources; however, the predominant Ru–Os–Ir alloy grains point to an origin from ophiolite sequences of unknown age (but likely pre-Alpine; Variscan or older). The exact locations of the primary sources and the complex, prolonged sedimentary history of the detrital PGM with possibly multiple intermittent storages remain unknown. Detrital cassiterite grains were dated by the U–Pb method using LA-ICP-MS. The age dates of cassiterite largely overlap with zircon age distributions by peaking distinctly at ca. 325 Ma (majority of ages), thereby implying a predominantly Variscan age of the cassiterite grains and possible derivation from mineralization in the Black Forest area. Columbite-group minerals are dominantly tapiolite originating from pegmatites. Rare uraninite grains attest that this mineral experienced rapid erosion, transport and deposition in a reducing environment. © 2015, Springer-Verlag Berlin Heidelberg.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84958052306&doi=10.1007%2fs00531-015-1181-3&partnerID=40&md5=d6665aa3cdaaf63ef0192c02936a6891
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被引频次[WOS]:13   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70188
Appears in Collections:影响、适应和脆弱性
气候减缓与适应

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作者单位: Bundesanstalt für Geowissenschaften und Rohstoffe (BGR), Stilleweg 2, Hannover, Germany; Institute of Geology and Economic Geology, University of Leoben, Peter-Tunner-Straße 5, Leoben, Austria; RWTH Aachen, Lehr- und Forschungsgebiet Aufbereitung mineralischer Rohstoffe (AMR), Lochnerstr. 4-20, Haus C, Aachen, Germany; Institut für Geowissenschaften, Facheinheit Mineralogie - Petrologie und Geochemie, Universität Frankfurt, Altenhöferallee 1, Frankfurt am Main, Germany; University of Plymouth, Fitzroy, Drake Circus, Plymouth, United Kingdom; Department of Earth Sciences, Durham University, South Road, Durham, United Kingdom

Recommended Citation:
Oberthür T.,Melcher F.,Goldmann S.,et al. Mineralogy and mineral chemistry of detrital heavy minerals from the Rhine River in Germany as evidence to their provenance, sedimentary and depositional history: focus on platinum-group minerals and remarks on cassiterite, columbite-group minerals and uraninite[J]. International Journal of Earth Sciences,2016-01-01,105(2)
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