Characterization of the Sukinda and Nausahi ultramafic complexes, Orissa, India by platinum-group element geochemistry
Precambrian Research
By: N. J. Page, P.K. Banerji, and J. Haffty
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Abstract
Samples of 20 chromitite, 14 ultramafic and mafic rock, and 9 laterite and soil samples from the Precambrian Sukinda and Nausahi ultramafic complexes, Orissa, India were analyzed for platinum-group elements (PGE). The maximum concentrations are: palladium, 13 parts per billion (ppb); platinum, 120 ppb; rhodium, 21 ppb; iridium, 210 ppb; and ruthenium, 630 ppb. Comparison of chondrite-normalized ratios of PGE for the chromitite samples of lower Proterozoic to Archean age with similar data from Paleozoic and Mesozoic ophiolite complexes strongly implies that these complexes represent Precambrian analogs of ophiolite complexes. This finding is consistent with the geology and petrology of the Indian complexes and suggests that plate-tectonic and ocean basin developement models probably apply to some parts of Precambrian shield areas. ?? 1985.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Characterization of the Sukinda and Nausahi ultramafic complexes, Orissa, India by platinum-group element geochemistry |
| Series title | Precambrian Research |
| Volume | 30 |
| Issue | 1 |
| Year Published | 1985 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Precambrian Research |
| First page | 27 |
| Last page | 41 |
| Google Analytic Metrics | Metrics page |