| 论澜沧老厂银铅多金属矿床成矿特征 |
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| 引用本文： | 薛步高.论澜沧老厂银铅多金属矿床成矿特征[J].矿产与地质,1998,12(1):26-32. |
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| 作者姓名： | 薛步高 |
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| 作者单位： | 云南省乡镇企业管理局 |
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| 摘 要： | 澜沧老厂系受燕山期构造控制由上部灰岩与下部火山岩组成统一矿化体的银铅多金属大型矿床。深部钻孔揭露花岗斑岩与矽卡岩铜矿化，说明其成因与隐伏酸性岩体有关。历史遗留由灰岩型矿石提银后的富铅炉渣，其含铅金属量加上灰岩型矿石已探明的铅金属量，相当火山岩型矿石已探明铅金属量的２．５倍。说明灰岩型矿体是矿床的主体。只研究火山岩型而忽略灰岩型铅锌矿的研究，或以火山岩型矿体的成矿特征来说明老厂矿床的整体特征，都是不全面的。
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| 关 键 词： | 银铅矿床，地质特征，矿床类型，灰岩型，火山岩型，云南老厂 |
MINERALIZATION CHARACTERISTICS OF THE LAOCHANG Ag Pb POLYMETALLIC DEPOSIT, LANCHANG |
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| Xue Bugao.MINERALIZATION CHARACTERISTICS OF THE LAOCHANG Ag Pb POLYMETALLIC DEPOSIT, LANCHANG[J].Mineral Resources and Geology,1998,12(1):26-32. |
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| Authors: | Xue Bugao |
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| Abstract: | The Laochang deposit is a large of Ag Pb polymetallic deposit controlled by a mineralization unit composed of upper limestone and lower volcanic rock. The deep part is granoporphry and skarn copper mineralization exposed by drilling hole, which indicate the genesis is related to hidden acidic rockbodies. The total Pb metal in the limestone type ore is about 2.5 times larger than that in the volcanic type ore,indicating that the limestone ore is the major ore in the deposit. Thus it would be not complete if only study the volcanic type, but neglect the limestone type Pb Zn ore, or take the mineralization characteristics in volcanic type ore to indicate the whole characterstics in the Laochang deposit. |
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| Keywords: | Ag Pb deposit Geological characteristics Deposit type Limestone type Volcanic type Laochang Yunnan |
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