Zircon U-Pb Dating for Intrusions in Laoshankou Ore District in Northern Margin of East Junggar and Their Significances
详细信息
- 责任者：Lü Shujun (China University of Geosciences ; Beijing 100083 ; China) ; Yang Fuquan
- 刊名：Geological Review
- 出版年：2012
- 卷期：58(1)
- 关键词：铁矿 ; iron ores ; 铜矿 ; copper ores ; 金矿 ; gold ores ; 侵入体 ; intrusions ; 准噶尔盆地 ; Junggar Basin
- 页码：p.149-164
- 图表：6 illus., 1 table, 70 refs.
- 分类号：1001
- issnNo：ISSN0371-5736
- isbnNo：CN11-1952/P
摘要
The Laoshankou ore district is located in the northern margin of Junggar and the southern side of the Kalatongke—Kalaxiange′er porphyry copper belt. The mineralization associated with the magma intrusion activities. After performance of LA-ICP-MS zircon U-Pb dating, the authors respectively obtained (353.8±1.9) Ma, (366.3±1.9) Ma, (379.3±2.3) Ma and (379.7±3) Ma for the diorite, syenite, biotite diorite and diorite porphyrite in the Laoshankou ore district, which represent three distinguishing magma intrusive activities. The ages of biotite diorite and diorite porphyrite are consistent in the error limits, those are comagmatic in the Middle Devonian.
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