文章摘要
李伟,崔育菘,张渝金,张超,刘世峰,杜继宇.内蒙古阿鲁科尔沁旗胜利大队铅锌多金属矿地质特征及成矿时代[J].矿产勘查,2024,15(12):2207-2215
内蒙古阿鲁科尔沁旗胜利大队铅锌多金属矿地质特征及成矿时代
Geological characteristics and metallogenic age of lead-zinc polymetallic deposit in Shengli Dadui of Ar Horqin Banner, Inner Mongolia
  
DOI:10.20008/j.kckc.202412004
中文关键词: 地质特征  成矿时代  二长花岗岩  胜利大队铅锌多金属矿床
英文关键词: geological characteristics  metallogenic age  adamellite  Shengli brigade lead-zinc polymetallic de. posit
基金项目:
作者单位
李伟 中国地质调查局沈阳地质调查中心辽宁沈阳 110034
东北地质科技创新中心辽宁沈阳 110034 
崔育菘 辽宁省地质矿产调查院有限责任公司辽宁沈阳 110031 
张渝金 中国地质调查局沈阳地质调查中心辽宁沈阳 110034
东北地质科技创新中心辽宁沈阳 110034 
张超 中国地质调查局沈阳地质调查中心辽宁沈阳 110034
东北地质科技创新中心辽宁沈阳 110034 
刘世峰 辽宁工程技术大学矿业学院辽宁阜新 123099 
杜继宇 中国地质调查局沈阳地质调查中心辽宁沈阳 110034
东北地质科技创新中心辽宁沈阳 110034 
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中文摘要:
      胜利大队铅锌多金属矿床位于林西—突泉铅锌银多金属成矿亚带上,为了研究该矿床的地质特征及成矿时代,本文对该矿床进行了矿产地质调查、岩相学观察及年代学研究,结果表明:矿体赋存于晚古生代林西组地层与燕山期二长花岗岩接触带上,矿体呈脉状,北北东向断裂为主要的控矿构造,控制了矿化蚀变带的展布方向。围岩蚀变主要有硅化、绿帘石化、绿泥石化、高岭土化及黄铁矿化等。对矿床成因的初步分析,认为胜利大队铅锌多金属矿床的成因类型为热液充填型脉状矿床。利用激光剥蚀等离子体质谱(LA-ICP-MS)方法对成矿岩体中锆石进行 U-Pb测年,获得其侵位时代为(131.1±1.4)Ma,代表了区域早白垩纪早期的成矿事件,为区域找矿勘查提供参考依据。
英文摘要:
      Shengli Dadui Pb-Zn polymetallic deposit is located in Linxi-Tuquan Pb-Zn-Ag polymetallicmetallogenic sub-belt. In order to study the geological characteristics and metallogenic age of the deposit, a mineralgeological survey, petrographic analysis, zircon U-Pb geochronology petrographic analysis were conducted. And thefollowing key observations have been made: The ore body is located at the contact zone between the Late PaleozoicLinxi Formation and the Yanshanian biotite granite; The ore body is vein-shaped, with a NNE-trending fault as theprimary ore-controlling structure, which controls the distribution direction of the alteration zones; Wall rock altera.tion mainly includes silicification, epidotization, chloritization, kaolinization and pyritization; Based on the prelimi.nary analysis of the genesis of the deposit, it is considered that the genetic type of Shengli Dadui Pb-Zn polymetal.lic deposit is hydrothermal filling vein deposit; Zircon U-Pb dating by LA-ICP-MS method shows that the age ofrock mass is (131.1 ±1.4) Ma. This represents an early Cretaceous metallogenic event in the region and provides areference for regional mineral exploration and prospecting.
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