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黄金科学技术 ›› 2018, Vol. 26 ›› Issue (3): 289-296.doi: 10.11872/j.issn.1005-2518.2018.03.289

• 矿产勘查与资源评价 • 上一篇    下一篇

青海献礼山地区1/5万水系沉积物地球化学特征及其地质意义

唐卫东,马庆,王郅睿   

  1. 武警黄金第六支队,青海 西宁 810021
  • 收稿日期:2017-07-27 修回日期:2018-01-11 出版日期:2018-06-30 发布日期:2018-07-28
  • 作者简介:作者简介:唐卫东(1990-),男,河南周口人,助理工程师,从事矿产资源远景调查评价工作。1009321162@qq.com
  • 基金资助:

    中国人民武装警察部队黄金指挥部项目“青海省都兰—同德—甘德地区金多金属矿产调查评价”(编号:1212011220665)资助
      

Geochemical Characteristics and Geological Significance of Stream Sediments with a Scale of 1/50 000 in Xianli Mountain Area ,Qinghai Province

TANG Weidong,MA Qing,WANG Zhirui   

  1. No.6 Gold Geological Party of CAPF,Xining 810021,Qinghai,China
  • Received:2017-07-27 Revised:2018-01-11 Online:2018-06-30 Published:2018-07-28

摘要: 献礼山地区隶属于巴颜喀拉造山带,具有优越的构造成矿环境和丰富的成矿物质来源。研究区草皮覆盖较严重,水系沉积物地球化学是开展矿产调查的有效手段。采用分形分布、因子分析和R型聚类分析等方法,详细研究了区内1/5万水系沉积物中各元素的分布特征和组合特征,并结合区内成矿事实,取得了以下认识:①在研究区共圈定出7处综合异常,主异常元素为Sb和Au,伴生元素以As、Au、Ag和Hg等为主;②结合区内各元素地球化学特征及成矿事实,确定区内主攻矿种为锑和金,为下一步矿产勘查工作指明了方向;③研究区成矿作用以中低温热液成矿为主导,并经历了多期次的叠加和改造。

关键词: 水系沉积物, 分形分布, 因子分析, 综合异常, 地球化学特征, 热液成矿作用, 献礼山, 青海省

Abstract: Xianli mountain area belongs to the Bayan Har metallogenic belt,which has an superior tectonic metallogenic environment and abundant source of ore-forming materials.The turf coverage is serious in the study area,and the geochemistry of stream sediments is an effective method to carry out mineral resources investigation.By the means of fractal distribution, factor analysis and R cluster analysis,we studied the distribution charac-teristics and combination characteristics of the elements in the 1/50 000 stream sediment survey.Combined with the minerals,some understandings had been summed up as follow:(1)comprehensive anomalies had been delineated in the area.The main abnormal elements were Sb and Au,and the associated elements were mainly As,Au,Ag,Hg and so on.(2)Combined with geochemical characteristics and minerals in the area,the main ore species in the area were identified as Sb and Au,which can play an important guiding role in further ore-prospecting work.(3)The mineralization in the study area is dominated by middle low temperature hydrothermal mineralization,which has experienced multiple stages of superposition and transformation.

Key words: stream sediments, fractal distribution, factor analysis, comprehensive anomaly, geochemical charac-teristics, hydrothermal mineralization, Xianli mountain, Qinghai Province

中图分类号: 

  • P632
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