Gold-porphyry mineralization of the Toupugol- Khanmeyshorsky ore district (the Polar Urals, Russia): geochronology and geological controls on ore genesis

Авторы: Ivanova Julia N., Vikentyev Ilya V., Sobolev Ivan D., Mansurov Rinat K.
Сборник: Mineral Resources to Discover - 14th SGA Biennial Meeting 2017, Volume 1
Том: 1
Тезисы
Год издания: 2017
Место издания: Canada, Quebec
Первая страница: 363
Последняя страница: 366
Аннотация: The paper presents the geological characteristics of the Toupugol-Khanmeyshorsky ore district, including results of satellite imagery analysis and precise U-Pb zircon geochronology on the host intrusive rocks. Geological, morphostructural, basin and facies analyses were used in reconstructing of the Novogodny volcanic dome structure. Regional-scale controls on gold mineralization include concentric and arcuate faults crosscut by NE- and NW-trending radial lineaments. Gold porphyry mineralization, including the Petropavlovskoe deposit, is associated with subvolcanic porphyry diorite bodies preferentially located at the intersection with the radial faults. The pre ore to ore-associated, dioritedominated second phase of the Sobsky intrusive complex is precisely dated at 410 ± 2 Ma. Zircons from gabbro sill of the Novogodnee-Monto deposit and lamprophyre dikes of the Malohanmeysky complex are dated 256 ± 5 Ma and 248 ± 7 Ma respectively.
Добавил в систему: Соболев Иван Дмитриевич

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