| 解洪晶,王玉往,蒋炜,张云国,寇海川,孙志远.内蒙古长汉卜罗铅锌银矿床地质特征及成因探讨[J].矿产勘查,2014,5(2):224-232 |
| 内蒙古长汉卜罗铅锌银矿床地质特征及成因探讨 |
| Geological characteristics and discussion on genesis of the Changhanboluo Pb-Zn-Ag deposit, Inner Mongolia |
| 投稿时间：2013-11-28 |
| DOI： |
| 中文关键词: 次火山热液型矿床 地质特征 矿床成因 长汉卜罗 华北北缘 |
| 英文关键词: subvolcanic epithermal deposit geological characteristics deposit genesis Changhanboluo northern margin of the North China Craton |
| 基金项目:老矿山项目(编号:121200113086300)资助。 |
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| 中文摘要: |
| 长汉卜罗铅锌银矿床位于华北克拉通北缘。矿体受东西、北东向断裂控制,主要以脉状、透镜状赋存于石英斑岩、花岗闪长岩、安山岩内及不同岩性接触带。金属矿物以方铅矿、闪锌矿、黄铁矿为主,其次为黄铜矿、毒砂、白铁矿、黝铜矿、银黝铜矿等。围岩蚀变主要在矿脉两侧发育,包括黄铁矿化、绢云母化、硅化、绿泥石化、绿帘石化、碳酸盐化等。成矿过程可划分为3个阶段:石英—黄铁矿阶段(Ⅰ阶段)、多金属硫化物阶段(Ⅱ阶段)和石英—碳酸盐阶段(Ⅲ阶段)。矿床形成可能与近同期的火山—次火山岩浆作用相关,为次火山热液型矿床。 |
| 英文摘要: |
| The Changhanboluo Pb-Zn-Ag deposit is located in the northern margin of the North China Craton. The orebodies are controlled by EW- and NE-trending faults and hosted in quartz porphyry, granodiorite, andesite and the contact zones of different rocks. The metallic minerals are mainly galena, sphalerite, pyrite, with minor chalcopyrite, arsenopyrite, marcasite, tetrahedrite, freibergite etc. Ore-related hydrothermal alteration is well developed on both sides of the veins, dominated by pyritization, sericitization, silication, chloritization, epidotization, carbonatation etc. The hydrothermal mineralization stage can be subdivided into three stages:quartz-pyrite stage, polymetallic sulfide stage and quartz-carbonate stage. The deposit belongs to subvolcaism hydrothermal deposit and is closely related with the volcanism-subvolcaism magmatism. |
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