Geological, geochemical, and geochronological characteristics of Weilasituo Sn-polymetal deposit, Inner Mongolia, China
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- 作者：Fengxiang Wanga ; b ; Leon Bagasa ; c ; Sihong Jianga ; Yifei Liua ; lyfsky@126.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：Cassiterite ; U-Pb dating ; REE tetrad effect ; Sn-polymetal deposit ; Weilasituo ; Great Xing'an Range
- 刊名：Ore Geology Reviews
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：80
- 期：Complete
- 页码：1206-1229
- 全文大小：9007 K
文摘
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The Weilasituo Sn-W-Rb deposit is the largest porphyry-type Sn-polymetallic deposit discovered so far in NE China.
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The in situ LA-MC-ICP-MS U-Pb dating of cassiterite from the disseminated and vein-type mineralization yields two well-defined isochron ages of 138 ± 6 Ma and 135 ± 6 Ma.
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The quartz porphyry is a highly fractionated I-type granite with a characteristic of REE tetrad effect. The Sn mineralization at Weilasituo was resulted from fractional crystallization of the quartz porphyry.