PETROGEOCHEMICAL FACTORS AFFECTING THE DISTRIBUTION OF ORE FIELDS IN RARE-METAL ORE-MAGMATIC SYSTEMS (IN THE SOVIET NORTHEAST)
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dc.contributor.author | Tauson L.V. | |
dc.contributor.author | Kravtsova R.G. | |
dc.contributor.author | Zakharov M.N. | |
dc.date.accessioned | 2020-10-31T11:22:51Z | |
dc.date.available | 2020-10-31T11:22:51Z | |
dc.date.issued | 1990 | |
dc.identifier | https://elibrary.ru/item.asp?id=31107762 | |
dc.identifier.citation | Transactions (Doklady) of the USSR Academy of Sciences. Earth Science Sections, 1990, , 4, 286-290 | |
dc.identifier.issn | 0891-5571 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/18323 | |
dc.description.abstract | Combined geochemical studies have been carried out in one of the sectors of the Okhotsk-Chukotka volcanogenic belt (OCVB), within a large magmatogenic intrusivedome uplift that was formed in the late Cretaceous, at the intersection of deep faults in the continent-ocean transition zone. The mineralization and endogenic geochemical fields of concentration (GFC) found within the intrusive-dome rare-metal ore-magmatic systems are, in the source of their ore material, paragenetically associated with the silicic magma chamber that produced the rhyolite-granite complex. In their nature, the endogenic GFC are magmatogenic and, like the granitoids of the Peestrinskiy pluton, are specialized for silver, tin and, to a lesser degree, tungsten. The duration and the multistage nature of formation of the magmatogenic GFC in the ore-magmatic system under study predetermined their multiplicity and the poly-chronous character of their development. GFC of the pneumatolytic and the hydrothermal stages can be distinguished. The petrogeochemical factors in the distribution of the ore fields, and the evolutionary-zonal development of the mineralization and of the associated endogenic geochemical fields within the ore-magmatic systems, expand currently existing ideas concerning the theoretical model of a multilevel geochemical field of natural bodies, make a substantial contribution to the problem of prospecting for concealed mineralization, and enable the genetic nature of the anomalies discovered to be appraised on a fundamentally new basis. | |
dc.subject | Cretaceous | en |
dc.title | PETROGEOCHEMICAL FACTORS AFFECTING THE DISTRIBUTION OF ORE FIELDS IN RARE-METAL ORE-MAGMATIC SYSTEMS (IN THE SOVIET NORTHEAST) | |
dc.type | Статья | |
dc.subject.age | Mesozoic::Cretaceous | en |
dc.subject.age | Мезозой::Меловая | ru |
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