水系沉积物测量在西藏春哲地区找矿效果
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  • 英文篇名:The effect of stream sediment survey for prospecting in Chunzhe area, Tibet
  • 作者:杜保峰 ; 杨长青 ; 柴建玉 ; 白国典 ; 李雯雯 ; 宁福正
  • 英文作者:DU Baofeng;YANG Changqing;CHAI Jianyu;BAI Guodian;LI Wenwen;NING Fuzheng;Henan Institute of Geological Survey;Henan Key Laboratory of Metal Mineral Mineralization Geological Processes and Resource Utilization;No.1 Institute of Geo-Exploration of Henan Geology and Mineral Bureau;
  • 关键词:水系沉积物测量 ; 找矿效果 ; 异常元素组合 ; 春哲地区 ; 西藏
  • 英文关键词:stream sediment survey;;prospecting effect;;anomaly association;;Chunzhe area;;Tibet
  • 中文刊名:DIZI
  • 英文刊名:Geology in China
  • 机构:河南省地质调查院;河南省金属矿产成矿地质过程与资源利用重点实验室;河南省地质矿产勘查开发局第一地质勘查院;
  • 出版日期:2018-06-15
  • 出版单位:中国地质
  • 年:2018
  • 期:v.45;No.386
  • 基金:中国地质调查局项目(1212011086055、12120114082101)联合资助~~
  • 语种:中文;
  • 页:DIZI201803014
  • 页数:13
  • CN:03
  • ISSN:11-1167/P
  • 分类号:190-202
摘要
西藏春哲地区位于冈底斯—念青唐古拉成矿带中的青都—则学铁铜多金属次级成矿带南部,具有较好的找矿前景。1∶5万水系沉积物测量结果显示,该区是铅、锌、银、钨、钼等矿产的有利成矿区。依据元素相关性、空间分布特征和主要指示元素种类,划分出以Pb、Zn、Cd、Ag元素为主、以W、Mo、Bi元素为主和以As、Sb元素为主的3类元素组合异常,并指出了各类组合异常内寻找的矿种和矿床类型,即矽卡岩型铁铜多金属矿和构造热液型铅锌矿。通过异常查证,发现了恰我铁钨多金属矿、勒翁铁多金属矿等2个中型矿床和多处矿点,找矿成果显著。其中,恰我铁钨共生矿为区域内首次发现的新类型矿产,对该区找矿具有较好的指导意义,亦显示研究区具有较好的找矿潜力。
        The Chunzhe area is located in the south of the Qingdu-Zexue iron-copper polymetallic secondary metallogenic belt in the Gangdise-Nyainqentanggula metallogenic belt, and has a good ore-searching prospect. 1∶50000 stream sediment survey results show that Chunzhe area should be conducive to enrichment and mineralization of lead, zinc, silver, tungsten, molybdenum. On the basis of the correlation of elements, spatial distribution characteristics of various element anomalies and main indicator elements of inferred deposit types, the authors hold that there exist three types of element anomaly associations i.e., Pb, Zn, Cd, Ag association,W, Mo, Bi association and As Sb association. The authors also pointed out the minerals or deposit types reflected by these associations of anomalies, i.e., skarn type iron-copper polymetallic deposits and tectonic hydrothermal type lead-zinc deposits.Based on follow-up anomaly investigation, the authors obtained remarkable achievements as shown be the discovery of twomedium-sized deposits(Qiawo iron-tungsten polymetallic deposit and Leweng iron polymetallic deposit) and many ore spots. In addition, the Qiawo deposit with iron-tungsten association is a new mineralization type in this area, so it has good guiding significance for prospecting and also shows that this area has good prospecting potential.
引文
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