Инд. авторы: Vishnevskiy A., Cherdantseva M., Izokh A.E.
Заглавие: The structure of sulfide droplets zone in the "Rudniy" mafic intrusion (Tsagaan-Shuvuut ridge, NW Mongolia)
Библ. ссылка: Vishnevskiy A., Cherdantseva M., Izokh A.E. The structure of sulfide droplets zone in the "Rudniy" mafic intrusion (Tsagaan-Shuvuut ridge, NW Mongolia) // MINERAL DEPOSIT RESEARCH FOR A HIGH-TECH WORLD, VOLS. 1-4. - 2013. - P.1072-1075. - ISBN 978-91-7403-207-9.
Внешние системы: WoS: 000337983900270;
Реферат: eng: Sulfide droplets are known to occur in some Cu-Ni-PGE deposits. In this paper we present the results of a study of sulfide droplets zone with large amount of PGE mineral grains, which have recently been found in NW Mongolia. Based on the study of the structure and texture of this zone, we have identified two horizons of sulfide droplets, Upper and Lower, which differ from each other in terms of droplet size, shape, and PGE-telluride content. Sulfide droplets are surrounded by narrow metasomatic rims containing no olivine and spinels, but there are minerals containing OH, F, and especially Cl. A common mineral in these rims and within the sulfides is ilmenite, which forms skeletal crystals and with pyrrhotite partially replaces cumulus titanomagnetite. Crystallization of such droplets can be considered as a quasi-closed system. Their study is important for understanding the distribution of the major, PGE, and other trace elements during crystallization and subsolidus transformation of natural sulfide melts.
Ключевые слова: PLATINUM-GROUP ELEMENT; fluids; ORIGIN; Cu-Ni-PGE ores; Sulfide droplets; Mongolia;
Издано: 2013
Физ. характеристика: с.1072-1075