About: Extreme PGE concentrations in lower Cambrian acid tuff layer from the Kunyang phosphate deposit, Yunnan Province, South China – possible PGE source for lower Cambrian Mo-Ni-polyelement ore beds

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About: Extreme PGE concentrations in lower Cambrian acid tuff layer from the Kunyang phosphate deposit, Yunnan Province, South China – possible PGE source for lower Cambrian Mo-Ni-polyelement ore beds Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	A study of the PGE distribution in various lowermost Cambrian rock types of the Kunyang phosphate deposit in South China revealed surprisingly the highest PGE concentrations (434 ppb Pt, 142 ppb Pd, 57.97ppb Rh, < 1 ppb Ru and 0,14 ppb Ir) in a whole rock sample of acid tuff. The clay-quartz fraction of the tuff revealed elevated Ru and Ir concentrations but a depletion in Pt, Pd and Rh relative to the whole rock. LA-ICPMS analyses of pyrite and yielded comparatively high Ni and in some grains also elevated Re and Pd concentrations. It is very likely that the PGE are in part bound to submicroscopic inclusions in pyrite and/or intermetallic phases bound to the clay fraction. Our observations are consisten with diagenetic metal enrichment. Similar anomalously PGE-enriched acid tuffs could have played an important role in the origin of the slightly younger Mo-Ni-PGE phosphatic and sulfidic black shales in the Yangtze Platform. A study of the PGE distribution in various lowermost Cambrian rock types of the Kunyang phosphate deposit in South China revealed surprisingly the highest PGE concentrations (434 ppb Pt, 142 ppb Pd, 57.97ppb Rh, < 1 ppb Ru and 0,14 ppb Ir) in a whole rock sample of acid tuff. The clay-quartz fraction of the tuff revealed elevated Ru and Ir concentrations but a depletion in Pt, Pd and Rh relative to the whole rock. LA-ICPMS analyses of pyrite and yielded comparatively high Ni and in some grains also elevated Re and Pd concentrations. It is very likely that the PGE are in part bound to submicroscopic inclusions in pyrite and/or intermetallic phases bound to the clay fraction. Our observations are consisten with diagenetic metal enrichment. Similar anomalously PGE-enriched acid tuffs could have played an important role in the origin of the slightly younger Mo-Ni-PGE phosphatic and sulfidic black shales in the Yangtze Platform. (en)
Title	Extreme PGE concentrations in lower Cambrian acid tuff layer from the Kunyang phosphate deposit, Yunnan Province, South China – possible PGE source for lower Cambrian Mo-Ni-polyelement ore beds Extreme PGE concentrations in lower Cambrian acid tuff layer from the Kunyang phosphate deposit, Yunnan Province, South China – possible PGE source for lower Cambrian Mo-Ni-polyelement ore beds (en)
skos:prefLabel	Extreme PGE concentrations in lower Cambrian acid tuff layer from the Kunyang phosphate deposit, Yunnan Province, South China – possible PGE source for lower Cambrian Mo-Ni-polyelement ore beds Extreme PGE concentrations in lower Cambrian acid tuff layer from the Kunyang phosphate deposit, Yunnan Province, South China – possible PGE source for lower Cambrian Mo-Ni-polyelement ore beds (en)
skos:notation	RIV/00025798:_____/10:00000143!RIV11-MZP-00025798
http://linked.open...avai/riv/aktivita	I Z
http://linked.open...avai/riv/aktivity	I, Z(MZP0002579801)
http://linked.open...iv/cisloPeriodika	6
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Pašava, Jan Martínek, Karel Koubová, Magdaléna
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Česká geologická služba
http://linked.open...dnocenehoVysledku	258614
http://linked.open...ai/riv/idVysledku	RIV/00025798:_____/10:00000143
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	acid tuff, PGE enrichment, Mo-Ni ore bed, Kunyang phosphate deposit, Yunnan province, China (en)
http://linked.open.../riv/klicoveSlovo	China Kunyang phosphate deposit Mo-Ni ore bed PGE enrichment Yunnan province acid tuff
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[C481A480068B]
http://linked.open...i/riv/nazevZdroje	Economic Geology
http://linked.open...in/vavai/riv/obor	DD
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	105
http://linked.open...iv/tvurceVysledku	Martínek, Karel Pašava, Jan Koubová, Magdaléna Frimmel, Hartwig Luo, Taiyi
http://linked.open...ain/vavai/riv/wos	000285177600001
http://linked.open...n/vavai/riv/zamer	Geosciences for the Society of the 21st Century: from regional research to geological hazards and global changes.
issn	0361-0128
number of pages	10 (xsd:int)

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