ning: 18.0pt; mso-bidi-font-family: 宋体" lang=EN-US>Chronology and Tectonic Setting of the Intrusive Bodies and Associated Porphyry Copper Deposit in Hersai Area,
详细信息
- 责任者：Du Shijun (Key Laboratory of Mineral Resources ; Institute of Geology and Geophysics ; Chinese Academy of Sciences ; Beijing 100029 ; China) ; Qu Xun
- 刊名：Acta Petrologica Sinica
- 出版年：2010
- 卷期：26(10)
- 关键词：斑岩铜矿床 ; porphyry copper deposit ; 成矿期 ; metallogenic period ; 准噶尔盆地 ; Junggar Basin
- 页码：p.2981-2996
- 图表：3 illus., 4 tables, 60 refs.
- 分类号：1001
- issnNo：ISSN1000-0569
- isbnNo：CN11-1922/P
摘要
Hersai porphyry copper deposit located at the eastern segment of the Yemaquan-Qiongheba Paleozoic arc belt, eastern Junggar was a new discovered copper deposit recently. The ore-forming intrusive body was granodioritic porphyry intruded in a granodiorite pluton containing irregular K-feldspar granitic bodies. Zircon U-Pb dating results show that the K-feldspar granite was older with weight average age of about 429 Ma and contained some zircons with average age of about 405 Ma, ages of the granodiorite and granodioritic porphyry were about 411 Ma and 410.5 Ma respectively, and the granodiorite had some clastic zircon with weight average age of about 432 Ma.