Инд. авторы: | Afanasiev V.P., Pokhilenko N.P., Lobanov S.S. |
Заглавие: | Placer diamond potential of the siberian craton: Possible sources and ages |
Библ. ссылка: | Afanasiev V.P., Pokhilenko N.P., Lobanov S.S. Placer diamond potential of the siberian craton: Possible sources and ages // Geology of Ore Deposits. - 2011. - Vol.53. - Iss. 6. - P.474-477. - ISSN 1075-7015. - EISSN 1555-6476. |
Внешние системы: | DOI: 10.1134/S1075701511060031; SCOPUS: 2-s2.0-84555189330; |
Реферат: | eng: Many diamond placers in the Siberian craton are heterogeneous consisting of several components that differ in origin and ages of the source. The diamonds are either kimberlite-hosted or are exotic varieties which occur mostly in the northeastern craton periphery and come from primary deposits of unknown types and ages. The two groups of diamond placers in the area represent two evolution trends: those found in Middle Paleozoic kimberlites originated in the Famennian and the exotic diamond groups became involved in sedimentation in the Carnian. The trends have been associated with successive weathering of older diamond hosts and redeposition of the minerals into younger sediments. Having joined since the Late Triassic, the two trends eventually produced a polygenetic and multistage mixture of diamond groups in placers. © 2011 Pleiades Publishing, Ltd.
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Ключевые слова: | Siberian Craton; Russian Federation; weathering; sedimentation; redeposition; placer deposit; Paleozoic; kimberlite; diamond; Carnian; age determination; Diamond deposits; Placers; Minerals; Geology; Diamonds; Anoxic sediments; Redeposition; Paleozoic; Late Triassic; Evolution trend; |
Издано: | 2011 |
Физ. характеристика: | с.474-477 |