| 甘肃北山南金山—狼娃山金成矿带成矿作用特征 |
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| 引用本文： | 刘东晓,董雅清,张月宝.甘肃北山南金山—狼娃山金成矿带成矿作用特征[J].甘肃地质学报,2009,18(4):29-33. |
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| 作者姓名： | 刘东晓 董雅清 张月宝 |
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| 作者单位： | [1]甘肃省地矿局第三地勘院,甘肃兰州730050 [2]甘肃省地质调查院,甘肃兰州730000 [3]兰州大学西部环境教育部重点实验室,甘肃兰州730000 |
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| 基金项目： | 中国地调局甘肃省区域成矿规律研究及矿产预测评价(编码:1212010633901)部分成果 |
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| 摘 要： | 通过对南金山—狼娃山金成矿带金矿床成矿地质背景、矿床特征、成矿标志及控矿因素等诸方面分析认为,该成矿带金成矿作用集中在海西中晚期,具明显的区域性成矿特征,金矿集中分布在下石炭统扫子山组、白山组火山岩和海西期中酸性（石英闪长岩、花岗闪长岩）侵入岩体内外接触带中。金成矿受含矿建造、岩浆活动和构造控制,据其成矿和分布特点划分了矿床预测类型（矿床式）,建立了区域找矿模型。
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| 关 键 词： | 甘肃北山 金矿特征 矿床预测类型 成矿作用特征 |
CHARACTERISTICS OF MINERALIZATION OF NANJIN
MOUNTAIN-LANGWA MOUNTAIN GOLD METALLOGENIC
BELT IN BEISHAN AREA, GANSU PROVINCE |
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| LIU Dong-xiao,DONG Ya-qing and ZHANG Yue-bao.CHARACTERISTICS OF MINERALIZATION OF NANJIN
MOUNTAIN-LANGWA MOUNTAIN GOLD METALLOGENIC
BELT IN BEISHAN AREA, GANSU PROVINCE[J].Acta Geologica Gansu,2009,18(4):29-33. |
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| Authors: | LIU Dong-xiao DONG Ya-qing and ZHANG Yue-bao |
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| Institution: | 1.No3 Geology and Mineral Exploration Team,Gansu Provincial Bureau of Geology and Mineral Exploration and Development,Lanzhou 730050,China;2.Geological Survey of Gansu Province,Lanzhou 730000,China;3.Key Laboratory of Western China’s Environmental Systems(Ministry of Education),Lanzhou University,Lanzhou 730000,China) |
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| Abstract: | Through analyzing the gold deposit metallogenic background, deposit characteristics, metallogenic mark and ore-controlling factors of gold metallogenic belt in Nanjin Mountain-Langwa Mountain, it suggests that the gold mineralization in the metallogenic belt concentrated in the middle and late Hercynian period with obvious regional metallogenic characteristics, and the gold deposit is mostly developed inside and outside the contact zone of Saozishan Formation and Baishan Formation volcanic rock in Carboniferous System and Hercynian intermediate-acid intrusive bodies （quartz diorite, granodiorite）. The gold deposit is controlled by ore-bearing formation, magmatism and structure. According to the metallogenic and distribution features, deposit prediction types are classified and regional metallogenic model is established. |
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| Keywords: | Beishan area in Gansu Province gold deposit characteristics ore deposit prediction type char-acteristics of mineralization |
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