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陕西石门湾铅锌多金属矿床地质特征及成因类型浅析 被引量:3

Analysis on Geological Characteristics and Genetic Types of the Shimenwan Pb-Zn Polymetallic Deposit, Shaanxi, China
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摘要 石门湾铅锌多金属矿床位于扬子准地台东北边缘三级构造单元拗皱带内,属羌笛—扬子地层大区(Ⅲ)秦岭—大别山地层区(Ⅲ1)大巴山分区(Ⅲ12)之紫阳—平利地层小区(Ⅲ11-2)。通过对石门湾铅锌矿床的详查,简明介绍了勘查区的地层、构造、围岩蚀变等地质特征并圈定出6条铅锌矿(化)体且明确了矿体展布特征。在对矿床中主要矿体中矿石进行多项化学分析,不同矿段矿石基本分析,光谱半定量全分析等的基础上,认为矿石质量较优,矿石类型以硫化物矿石为主。在分析矿床地质特征的基础上,总结了矿床的控矿条件并认为该矿床属热水沉积-后期改造层控类型,成矿温度属中低温。认为石门湾铅锌多金属矿床具有较好的找矿前景,并为矿区外围找矿工作提供了理论依据。 The Shimenwan Pb-Zn polymetallic deposit is located in the third-order tectonic unit wrinkle zone on the northeast edge of the Yangtze Platform,and belongs to the Qiangdi-Yangzi stratigraphic area(III)Qinling-Dabieshan(III1)Dabashan(III1 2)Ziyang-Pingli formation stratum(III1 1-2).In this paper,through the detailed investigation of the Shimenwan Pb-Zn deposit,the geological characteristics of the strata,tectonic and wall rock alterations in the exploration area are briefly introduced,and six lead-zinc ore bodies are delineated and the ore body distribution characteristics are clearly defined.Through the multiple chemical analysis of the ore in the main ore body in the deposit,the ore basic analysis of different ore sections and the semi-quantitative analysis of the spectrum,it is considered that the ore quality is superior,and the ore type is mainly sulfide ore.Based on the geological characteristics of the deposit,the ore-controlling conditions of the deposit are summarized and it is considered that the deposit belongs to the hot-water deposition-retrofitting layer control type,and the ore-forming temperature is medium-low temperature.It is believed that the Shimenwan Pb-Zn polymetallic deposit has good prospecting prospects and provides a theoretical basis for prospecting work in the periphery of the mining area.
作者 苏震 姚富升 杨君语 彭宇 张尚清 李龙 SU Zhen;YAO Fu-sheng;YANG Jun-yu;PENG Yu;ZHANG Shang-qing;LI Long(Hebei GEO University,Shijiazhuang,Hebei 050031;Shaanxi Ankang Shimenwan Mining Co.,Ltd.,Ankang,Shaanxi 725000)
出处 《河北地质大学学报》 2018年第6期33-37,共5页 Journal of Hebei Geo University
关键词 石门湾铅锌多金属矿床 地质特征 矿石质量特征 Shimenwan Pb-Zn polymetallic deposit geological characteristics ore quality characteristics
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