Platinum-group minerals in chromitites from the Pindos ophiolite complex, Greece

Tarkian, M; EconomouEliopoulos, M; Sambanis, G

dc.contributor.author	Tarkian, M	en
dc.contributor.author	EconomouEliopoulos, M	en
dc.contributor.author	Sambanis, G	en
dc.date.accessioned	2014-03-01T01:45:16Z
dc.date.available	2014-03-01T01:45:16Z
dc.date.issued	1996	en
dc.identifier.issn	0028-3649	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/24568
dc.subject	PGM	en
dc.subject	PGE	en
dc.subject	ophiolite	en
dc.subject	chromitite	en
dc.subject	microprobe analysis	en
dc.subject.classification	Mineralogy	en
dc.subject.other	GROUP ELEMENTS	en
dc.subject.other	GOLD	en
dc.subject.other	INCLUSIONS	en
dc.subject.other	ROCKS	en
dc.subject.other	ORES	en
dc.title	Platinum-group minerals in chromitites from the Pindos ophiolite complex, Greece	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1996	en
heal.abstract	Chromitites from several localities in the Pindos ophiolite complex were studied for platinum-group minerals and base metal sulphides. The platinum-group element concentrations are generally low and exhibit chondrite-normalized patterns with negative slopes. However, a platinum and palladium enrichment (Pt 1460-3460 ppb, Pd 600-1660 ppb) was established in PGM-bearing chromitites hosted in strongly serpentinized dunites in the area of Korydallos. They are characterized by positive slopes of chondrite-normalized PGE-patterns and high Pd/Ir ratios. The PGM consist of Osrich laurite, sperrylite, and an unidentified phase, Pt(Ni,Fe)(3), representing an intermediate composition between synthetic PtFe3 and PtNi3. In general, the chromitites from Pindos are extremely poor in base metal sulphides. Minute grains of pentlandite are found as inclusions in chromite and in the silicate matrix. They contain small amounts of Pt and Pd which also were recorded in secondary heazlewoodite and awaruite. Textural features and analytical results suggest that serpentinization is responsible for a local redistribution of Pt and Pd.	en
heal.publisher	E SCHWEIZERBART'SCHE VERLAGS	en
heal.journalName	NEUES JAHRBUCH FUR MINERALOGIE-MONATSHEFTE	en
dc.identifier.isi	ISI:A1996UU02400001	en
dc.identifier.issue	4	en
dc.identifier.spage	145	en
dc.identifier.epage	160	en