Инд. авторы: | Berzina A.N., Berzina A.P., Gimon V.O. |
Заглавие: | U-Pb geochronology of the Aksug porphyry Cu deposit, Eastern Tuva, Russia |
Библ. ссылка: | Berzina A.N., Berzina A.P., Gimon V.O. U-Pb geochronology of the Aksug porphyry Cu deposit, Eastern Tuva, Russia // MINERAL RESOURCES TO DISCOVER, VOLS 1-4. - 2017. - P.1013-1016. - ISBN 978-2-9816898-0-1. |
Внешние системы: | WoS: 000439764100250; |
Реферат: | eng: Aksug, located in Altai-Sayan Fold Belt within Early Paleozoic Khamsara batholith is a large porphyry Cu deposit with 3.3 Mt metal copper, its formation is confined to accretion-collision events related to the interaction of Siberian continent with Paleo-Asian ocean. New geochronologic data from the Aksug deposit yield a Middle Late Cambrian crystallization U-Pb age of 500.4 +/- 5.9 and 499.2 +/- 6.3 Ma for zircons from granodiorite porphyries that host the Cu mineralization, and 504.1 +/- 5.2 Ma for precursor barren quartz diorite. The ages of ore-bearing porphyries disagree with previous Ar-40/Ar-39 age determinations, being significantly older. New SHRIMP zircon and published Re-Os molybdenite ages highlight the importance of Cambrian metallogenic event within the Altai-Sayan area.
|
Издано: | 2017 |
Физ. характеристика: | с.1013-1016 |