Open AccessО геологическом и изотопном возрасте золоторудных месторождений на примере золото-серебряного месторождения Кубака (Северо-Восток России)
Author(s) -
В. А. Степанов
Publication year - 2021
Publication title -
vestnik severo-vostočnogo naučnogo centra dalʹnevostočnogo otdeleniâ ran
Language(s) - English
Resource type - Journals
ISSN - 1814-0998
DOI - 10.34078/1814-0998-2021-1-3-12
Subject(s) - geology , geochemistry , mineralization (soil science) , massif , carboniferous , devonian , dike , mineralogy , paleontology , structural basin , soil science , soil water
Information on the geological and isotopic age of the Kubaka gold-silver deposit in the Omolon middle massif in the North-East of Russia is presented. It has been established that the Kubaka deposit geological age lies in between the Late Devonian age of the Kedon series volcanites, containing the gold-silver mineralization, and the Early Carboniferous age of the Korbinsky suite terrigenous rocks, overlapping the volcanites and the mineralization. The post-ore nature of the Omolon complex dykes, which produce no significant impact on the distribution of gold mineralization in ore bodies, is shown. According to isotope dating, the following stages of the Kubaka deposit formation are distinguished: the accumulation of the Kubaka suite tuffs (369 Ma); the introduction of subvolcanic intrusions (344 and 337 Ma); the formation of ore metasomatites (335±5 Ma); the formation of gold-silver mineralization (330 and 334 - 324 Ma); the introduction of post-ore dikes (179±8 - 176±10 Ma).