Magmatic Activities and Copper and Gold Mineralization in Northern Damaoqi, Inner Mongolia
详细信息
- 责任者：Tang Chao (School of the Earth Sciences and Resources ; China University of Geosciences ; Beijing 100083 ; China) ; Chen Junqiang
- 刊名：Geology and Prospecting
- 出版年：2013
- 卷期：49(2)
- 关键词：铜矿 ; copper ores ; 金矿 ; gold ores ; 内蒙古 ; Inner Mongolia
- 页码：p.224-235
- 图表：illus., 4 tables, 27 refs.
- 分类号：1001
- issnNo：ISSN0495-5331
- isbnNo：CN11-2043/P
摘要
Magmatic rocks are widely distributed in northern Damaoqi,which were mainly formed in the Caledonian and late Variscan periods. The Caledonian intrusive rocks are dominated by diorite,quartz diorite and plagiogranite,and the late Variscan intrusives include diorite,quartz diorite,biotite granite,monzogranite and K-feldspar granite. The copper mineralization is related to the diorite,quartz diorite and granodiorite. And the gold mineralization is related to the quartz diorite,plagioclase granite and biotite granite. The copper and gold deposits (occurrences) both occur in rock bodies or volcanic rocks in outer contact zones,suggesting that the formation of the copper and gold (occurrences) is closely associated with the magmatic activities. Further study reveals that the copper and gold mineralization is controlled by magmatic activities in the late Variscan. From geological setting and comparison of geological features of porphyry copper and gold deposits,this work suggests that this area has a potential of finding porphyry copper and gold deposits.
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