Santosh, M. (1992) Role of Mantle Carbon in Archaean Gold Genesis in South India : Evidence from Carbon Stable Isotopic Composition of Fluid Inclusions. Journal Geological Society of India, 40 (2). 127-134 doi:10.17491/jgsi/1992/400204
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | Role of Mantle Carbon in Archaean Gold Genesis in South India : Evidence from Carbon Stable Isotopic Composition of Fluid Inclusions | ||
| Journal | Journal Geological Society of India | ||
| Authors | Santosh, M. | Author | |
| Year | 1992 (August 1) | Volume | 40 |
| Page(s) | 127-134 | Issue | 2 |
| Publisher | Geological Society of India | Place | Bangaluru, India |
| URL | |||
| DOI | doi:10.17491/jgsi/1992/400204Search in ResearchGate | ||
| Generate Citation Formats | |||
| Classification | Not set | LoC | Not set |
| Mindat Ref. ID | 18245204 | Long-form Identifier | mindat:1:5:18245204:2 |
| GUID | 0 | ||
| Full Reference | Santosh, M. (1992) Role of Mantle Carbon in Archaean Gold Genesis in South India : Evidence from Carbon Stable Isotopic Composition of Fluid Inclusions. Journal Geological Society of India, 40 (2). 127-134 doi:10.17491/jgsi/1992/400204 | ||
| Plain Text | Santosh, M. (1992) Role of Mantle Carbon in Archaean Gold Genesis in South India : Evidence from Carbon Stable Isotopic Composition of Fluid Inclusions. Journal Geological Society of India, 40 (2). 127-134 doi:10.17491/jgsi/1992/400204 | ||
| In | (1992, August) Journal of the Geological Society of India Vol. 40 (2). Geological Society of India | ||
| Abstract/Notes | Abstract Ore fluids in the gold-quartz veins in Kolar (Champion Reef) and Wynad (Nilambur) are characterized by CO2-bearing systems of low salinity and moderate density. Step-wise heating of auriferous quartz, and the isotopic analyses of CO2 extracted from fluid inclusions yield a tightly constrained d13C range of -5.9 to -9.4%0, providing the first direct evidence for the involvement of mantle carbon in the genesis ofthese Archaean gold deposits. The similarity in the range of carbon isotopic compositions of CO2 trapped within the Archaean granulites and gold deposits suggests a common source for the fluids. The isotope data are consistent with the derivation of CO2 from an outgassing sub-lithospheric mantle. | ||
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