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DOI | 10.2478/s13533-012-0185-9 |
Tsumoite (BiTe) and associated Ni-PGE mineralization from Gondpipri mafic-ultramafic complex, Bastar Craton, Central India: mineralogy and genetic significance | |
Dora, M. L.1; Singh, H.1; Kundu, A.2; Shareef, M.3; Randive, K. R.4; Joshi, S.2 | |
通讯作者 | Dora, M. L. |
来源期刊 | CENTRAL EUROPEAN JOURNAL OF GEOSCIENCES |
ISSN | 2081-9900 |
EISSN | 1896-1517 |
出版年 | 2014 |
卷号 | 6期号:4页码:506-517 |
英文摘要 | This paper reports the occurrence of Tsumoite (a bismuth telluride) in the Heti Cu-Ni-PGM prospect, Gondpipri mafic-ultramafic complex, Central India. The Gondpipri complex consists of several tectonically dismembered gabbronorite-gabbro-anorthositic gabbro - olivine gabbro -websterite disposed in similar to 10 km long tonalite-trondhjemitegranodiorite (TTG) and charnockite-enderbite suite of rocks. The mineralization occurs in the sulphide zone hosted by gabbro variants. The host rocks have been deformed and metamorphosed to granulite grade and subjected to various degrees of hydrothermal alteration. The mineralization comprises chalcopyrite, pentlandite, pyrrhotite, cubanite, millerite, and pyrite. In addition to these, occur (1) tsumoite (2) PGM in the form of moncheite, merenskyite, Pd-mellonite, and Pt-Pd-Te-Bi-Fe-S alloy. The present study indicates that the mineralization occurs in two stages related to: (i) magmatic and (ii) hydrothermal remobilization and transport of Cu-rich sulphides, tsumoite and PGM, and their re-deposition in hydrosilicate alteration zones. It is possible that the mineralization at Heti formed at different stages of bismuth activity under variable fS(2), T, and fTe(2) conditions due to change in total concentration of Te and S and /or cooling. Since the role of S is limited, Te and cooling are important factor influencing mineralogy and composition of tsumoite and associated mineralization. Mineralization occurs in two different modes of occurrences. The early mineralisation occur as blebs, specks and dissemination of sulphides, viz. pyrrhotite, chalcopyrite, pentlandite and minor pyrite +/- PGM, whereas later mineralisation occur as stringers, minor veins of sulphides viz. pyrite, millerite, cubanite, sijenite, tsumoite and +/- PGM. Mineral assemblages and textural relationships at Heti has indicated precipitation of tsumoite and associated PGM along fractures and secondary silicates, which confirms their hydrothermal origin. |
英文关键词 | Tsumoite PGM base metal sulphides hydrothermal Gondpipri mafic-ultramafic complex Bastar craton |
类型 | Article |
语种 | 英语 |
国家 | India |
收录类别 | SCI-E |
WOS记录号 | WOS:000340660600007 |
WOS关键词 | PLATINUM-GROUP MINERALS ; GROUP ELEMENTS ; EASTERN DESERT ; COMPOSITIONAL DATA ; NICKEL DEPOSITS ; MELONITE-GROUP ; MERENSKY REEF ; CU ; TELLURIDES ; SUDBURY |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/181322 |
作者单位 | 1.Geol Survey India, Shillong 793003, Meghalaya, India; 2.Geol Survey India, Faridabad, India; 3.Geol Survey India, Bangalore, Karnataka, India; 4.RTM Nagpur Univ, Dept Geol, Nagpur 440001, Maharashtra, India |
推荐引用方式 GB/T 7714 | Dora, M. L.,Singh, H.,Kundu, A.,et al. Tsumoite (BiTe) and associated Ni-PGE mineralization from Gondpipri mafic-ultramafic complex, Bastar Craton, Central India: mineralogy and genetic significance[J],2014,6(4):506-517. |
APA | Dora, M. L.,Singh, H.,Kundu, A.,Shareef, M.,Randive, K. R.,&Joshi, S..(2014).Tsumoite (BiTe) and associated Ni-PGE mineralization from Gondpipri mafic-ultramafic complex, Bastar Craton, Central India: mineralogy and genetic significance.CENTRAL EUROPEAN JOURNAL OF GEOSCIENCES,6(4),506-517. |
MLA | Dora, M. L.,et al."Tsumoite (BiTe) and associated Ni-PGE mineralization from Gondpipri mafic-ultramafic complex, Bastar Craton, Central India: mineralogy and genetic significance".CENTRAL EUROPEAN JOURNAL OF GEOSCIENCES 6.4(2014):506-517. |
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