| 内蒙古达茂旗北部岩浆活动与铜、金成矿作用 |
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| 引用本文： | 汤,超.内蒙古达茂旗北部岩浆活动与铜、金成矿作用[J].地质与勘探,2013,49(2):224-235. |
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| 作者姓名： | 汤 超 |
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| 作者单位： | 1. 中国地质大学地球科学与资源学院,北京100083;天津地质矿产研究所,天津300170
2. 天津地质矿产研究所,天津,300170 |
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| 基金项目： | 中国地质调查局项目(1212011120721) |
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| 摘 要： | 内蒙古达茂旗北部岩浆岩分布广泛,以加里东期和华力西晚期为主。加里东期侵入岩以闪长岩、石英闪长岩及斜长花岗岩为主;华力西晚期侵入岩以闪长岩、石英闪长岩、黑云母花岗岩、二长花岗岩及钾长花岗岩为主。经研究发现,铜矿化多与闪长岩、石英闪长岩及花岗闪长岩有关;金矿化多与石英闪长岩、斜长花岗岩及黑云母花岗岩有关;铜、金矿床(点)均产于岩体内或其外接触带的火山岩中,暗示铜、金矿(点)的形成与岩浆活动密切相关。进一步研究发现本区铜、金矿化主要受华力西晚期岩浆活动控制。通过对研究区成矿地质背景的讨论及与斑岩型铜、金矿床地质特征的对比,指出本区具备寻找斑岩型铜、金矿床的潜力。
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| 关 键 词： | 岩浆活动 铜(金)矿床 成矿作用 达茂旗 内蒙古 |
| 收稿时间： | 2012/4/22 0:00:00 |
| 修稿时间： | 2012/10/26 0:00:00 |
Magmatic Activities and Copper and Gold Mineralization in Northern Damaoqi, Inner Mongolia |
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| TANG Chao.Magmatic Activities and Copper and Gold Mineralization in Northern Damaoqi, Inner Mongolia[J].Geology and Prospecting,2013,49(2):224-235. |
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| Authors: | TANG Chao |
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| Institution: | School of the Earth Sciences and Resources, China University of Geosciences, Beijing |
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| Abstract: | Abstract: 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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| Keywords: | magmatic activity copper (gold) deposit mineralization Damaoqi Inner Mongolia |
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