40Ar/39Ar age of the porphyry Ca(Au) mineralization of the Elna deposit and its relation to magmatism (northeastern part of the Argun superterrane)
- Авторлар: Buchko I.1, Sorokin A.1, Ponomarchuk A.2, Travin A.2,3, Ponomarchuk V.2
-
Мекемелер:
- Institute of Geology and Nature Management, Far East Branch
- Sobolev Institute of Geology and Mineralogy, Siberian Branch
- Tomsk State University
- Шығарылым: Том 472, № 1 (2017)
- Беттер: 62-66
- Бөлім: Geochemistry
- URL: https://journals.rcsi.science/1028-334X/article/view/189390
- DOI: https://doi.org/10.1134/S1028334X17010111
- ID: 189390
Дәйексөз келтіру
Аннотация
The Elna Cu(Au)–porphyry deposit is one of the typical ore objects in the northeastern margin of the Argun superterrane facing the Mongolia–Okhotsk foldbelt. Mineralization includes zones of argillization with fine quartz veins in granodiorite of the Elna massif. The geochronological 40Ar/39Ar studies of hydrothermal near-ore metasomatites and magmatic rocks of the deposit show that the age of host granitoids is 126 ± 2 Ma, which corresponds to the upper age boundary of granitoids from the Burinda Complex, whereas the age of overprinted hydrothermal processes is 122–117 Ma. The age of mineralization correlates well with the age of the thermal event in East Asia. An intense stage of magmatism including both volcanic and intrusive forms occurred in this period.
Авторлар туралы
I. Buchko
Institute of Geology and Nature Management, Far East Branch
Email: ponomar@igm.nsc.ru
Ресей, Blagoveshchensk, 675000
A. Sorokin
Institute of Geology and Nature Management, Far East Branch
Email: ponomar@igm.nsc.ru
Ресей, Blagoveshchensk, 675000
A. Ponomarchuk
Sobolev Institute of Geology and Mineralogy, Siberian Branch
Хат алмасуға жауапты Автор.
Email: ponomar@igm.nsc.ru
Ресей, Novosibirsk, 630090
A. Travin
Sobolev Institute of Geology and Mineralogy, Siberian Branch; Tomsk State University
Email: ponomar@igm.nsc.ru
Ресей, Novosibirsk, 630090; Tomsk
V. Ponomarchuk
Sobolev Institute of Geology and Mineralogy, Siberian Branch
Email: ponomar@igm.nsc.ru
Ресей, Novosibirsk, 630090