| 滇西北保山核桃坪铅锌矿床铅同位素和成矿过程对比研究 |
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| 引用本文： | 张博.滇西北保山核桃坪铅锌矿床铅同位素和成矿过程对比研究[J].科学技术与工程,2011,11(21). |
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| 作者姓名： | 张博 |
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| 作者单位： | 昆明理工大学地球科学系,昆明,650093 |
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| 摘 要： | 滇西北核桃坪铅锌矿是保山地块内沿澜沧江断裂带发育的一个大型铅锌多金属矿床。矿体赋存于上寒武统核桃坪组和沙河厂组大理岩化灰岩及矽卡岩中,严格受近SN向的断裂带及层间破碎带控制。在分析矿床地质特征的基础上,通过与澜沧江老厂铅锌矿进行对比,对核桃坪铅锌矿形成的大地构造成因进行研究。大地构造位置,主成矿期铅同位素比值、物质来源等证据显示核桃坪矿床与老厂矿床具有相同的成因。根据老厂矿床的前人研究得出核桃坪铅锌矿床形成的机制为青藏高原的主碰撞期末,大规模走滑断裂的形成导致地壳重融、减薄,幔源岩浆沿走滑断裂侵入地壳与围岩交代蚀变成矿。
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| 关 键 词： | 滇西北 大地构造 铅同位素 澜沧江断裂带 花岗斑岩 |
| 收稿时间： | 2011/3/16 0:00:00 |
| 修稿时间： | 2011/3/16 0:00:00 |
A Comparative Study on Lead Isotope and Mineralization of Hetaoping Pb-Zn Ore Deposit,Baoshan |
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| zhangbo.A Comparative Study on Lead Isotope and Mineralization of Hetaoping Pb-Zn Ore Deposit,Baoshan[J].Science Technology and Engineering,2011,11(21). |
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| Authors: | zhangbo |
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| Institution: | ZHANG Bo,ZHANG Shi-tao (Kunming University of Caience and Tecnology,Kunming 650093,P.R.China) |
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| Abstract: | Hetaoping lead zinc ore deposit is a large-sized polymetallic deposit that developed along the Lancang River fault zone,Baoshan block,northwest Yunnan.Occurring in marbleization-limestone and skarn of the Hetaoping Group and the Shahechang Group of the Upper Cambrian Series,this deposit is firmly controlled by the nearly N-S trending fault-rupture and the interlayer fracture zone.The tectonic origin of Hetaoping Lead Zinc Deposit is analyzed by comparing that of Laochang Lead Zinc Deposit based on the resea... |
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| Keywords: | northwestern Yunnan geotectonic lead Isotope Lancangjiang fault zone granite prophyry |
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