First Data on Noble Metal–Rare Earth Mineralization in Graphite-Bearing Rocks of the Northern Margin of the Khanka Terrain
| Autor: | A. I. Khanchuk, D. V. Androsov, V. P. Molchanov |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Mineralization (geology)
010405 organic chemistry Geochemistry engineering.material 010502 geochemistry & geophysics 01 natural sciences Mantle (geology) 0104 chemical sciences Uraninite Rutile Monazite Earth and Planetary Sciences (miscellaneous) engineering General Earth and Planetary Sciences Noble metal Graphite Geology 0105 earth and related environmental sciences Terrane |
| Zdroj: | Doklady Earth Sciences. 482:1362-1364 |
| ISSN: | 1531-8354 1028-334X |
| DOI: | 10.1134/s1028334x18100239 |
| Popis: | High-carbon rocks at the northern margin of the Khanka terrane (Primorskii krai) have been found to host new occurrences of noble and rare-earth metals: the largest of them is the Filinskoye deposit. The graphite ores, hosting copper-bearing high-grade gold, silver, monazite, xenotime, sulfides, rutile, barite, and uraninite, demonstrate high ties of carbon with gold and rare earths. The graphite demonstrates δ13C from–2.1 to–5.5‰, corresponding to the mantle isotope composition. This suggests that the primary sources of the ore-forming system were deep carbon-bearing fluids. |
| Databáze: | OpenAIRE |
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