40Ar/39Ar age of the porphyry Ca(Au) mineralization of the Elna deposit and its relation to magmatism (northeastern part of the Argun superterrane)
- 作者: Buchko I.1, Sorokin A.1, Ponomarchuk A.2, Travin A.2,3, Ponomarchuk V.2
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隶属关系:
- Institute of Geology and Nature Management, Far East Branch
- Sobolev Institute of Geology and Mineralogy, Siberian Branch
- Tomsk State University
- 期: 卷 472, 编号 1 (2017)
- 页面: 62-66
- 栏目: Geochemistry
- URL: https://journals.rcsi.science/1028-334X/article/view/189390
- DOI: https://doi.org/10.1134/S1028334X17010111
- ID: 189390
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详细
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.
作者简介
I. Buchko
Institute of Geology and Nature Management, Far East Branch
Email: ponomar@igm.nsc.ru
俄罗斯联邦, Blagoveshchensk, 675000
A. Sorokin
Institute of Geology and Nature Management, Far East Branch
Email: ponomar@igm.nsc.ru
俄罗斯联邦, Blagoveshchensk, 675000
A. Ponomarchuk
Sobolev Institute of Geology and Mineralogy, Siberian Branch
编辑信件的主要联系方式.
Email: ponomar@igm.nsc.ru
俄罗斯联邦, Novosibirsk, 630090
A. Travin
Sobolev Institute of Geology and Mineralogy, Siberian Branch; Tomsk State University
Email: ponomar@igm.nsc.ru
俄罗斯联邦, Novosibirsk, 630090; Tomsk
V. Ponomarchuk
Sobolev Institute of Geology and Mineralogy, Siberian Branch
Email: ponomar@igm.nsc.ru
俄罗斯联邦, Novosibirsk, 630090