欢迎访问现代地质!

现代地质 ›› 2016, Vol. 30 ›› Issue (6): 1276-1284.

• 地球化学 • 上一篇    下一篇

甘肃北山炭山子—黄草泉一带水系沉积物地球化学特征及找矿远景

王磊1,杨建国1,王小红1,齐琦1,张洲远2, 张乐2,谢燮1,杨涛1,杨生飞1,胡兆国3   

  1. 1中国地质调查局 西安地质调查中心,国土资源部 岩浆作用成矿与找矿重点实验室,陕西 西安710054; 2 长安大学 地球科学与资源学院,陕西 西安710054;3中国冶金地质总局 山东正元地质勘查院, 山东 济南250000
  • 出版日期:2016-12-15 发布日期:2016-12-18
  • 作者简介:王 磊,男,助理研究员,1985年出生,矿物学、岩石学、矿床学专业,主要从事金属矿床勘查及研究工作
  • 基金资助:
    中国地质调查局项目“天山—北山成矿带那拉提—营毛沱地区地质矿产调查”(DD20160009);中国地质调查局项目“祁连成矿带肃南—大柴旦地区地质矿产调查”(DD20160012)

Geochemical Characteristics of Stream Sediments and Prospecting Direction in the Tanshanzi-Huangcaoquan Area of Beishan, Gansu Province

WANG Lei1, YANG Jianguo1, WANG Xiaohong1, QI Qi1, ZHANG Zhouyuan2, ZHANG Le2, XIE Xie1,YANG Tao1, YANG Shengfei1,HU Zhaoguo3   

  1. 1 Key Laboratory for the Study of Focused Magmatism and Giant Ore Deposits, MLR, Xian Center of Geological Survey, China Geological Survey, Xian, Shaanxi710054, China; 2School of Earth Sciences and Resources, Changan University, Xian, Shaanxi710054, China; 3 Geological Exploration Institute of Shandong Zhengyuan, China Metallurgical Geology Bureau, Jinan, Shandong250000, China
  • Online:2016-12-15 Published:2016-12-18

摘要: 摘要:依据甘肃北山炭山子—黄草泉一带1∶5万水系沉积物测量成果,分析了区内地球化学参数特征及其元素的相关性,认为元素地球化学异常主要受断裂、地层及岩浆岩3种因素控制,即主要受大山头断裂带和庙庙井断裂带,蓟县系、寒武系和奥陶系地层,大山头、三个井基性-超基性杂岩体及华力西期中酸性侵入岩的控制。根据异常特征及成矿地质条件圈定出4处具较好找矿潜力的远景区,即大山头铜镍找矿远景区、三个井铜镍找矿远景区、庙庙井金铜钨钼多金属矿找矿远景区、黄草泉东金银多金属矿找矿远景区,为该区下一步找矿工作指明了方向。

关键词: 水系沉积物测量, 地球化学特征, 找矿预测, 炭山子—黄草泉地区, 甘肃北山

Abstract: Abstract:Based on the 1∶50,000 stream sediment survey in Tanshanzi-Huangcaoquan area of Gansu Province, the geochemical parameters of oreforming elements were calculated, and the distribution, correlation, and anomaly assemblages of these elements were analyzed accordingly. It is indicated that the main elemental geochemical anomalies are controlled by faults (Dashantou and Miaomiaojing fracture zone), stratigraphy (Jixian system, Cambrian system, and Ordovician system), and magmatite (Dashantou and Sangejing maficultramafic magma and Variscan granite). According to the characteristics of structures, lithologies, and geochemical anomalies in this area, the authors delineated four polymetallogenic prospective areas, namely Dashantou and Sangejing CuNi metallogenetic prospective areas, Miaomiaojing AuCuWMo polymetallogenic prospective area, Huangcaoquandong AuAg polymetallogenic prospective area. This work is expected to provide some insights for the future exploration.

Key words: stream sediment survey, geochemical feature, exploration prediction, TanshanziHuangcaoquan area, Beishan in Gansu

中图分类号: