新疆—甘肃—内蒙古衔接区Cu和W地球化学异常及找矿意义  

Copper and tungsten geochemical anomalies in Xinjiang-Gansu-Inner Mongolia border area and their prospecting significance

作　　者：赵国斌[1] 杨合群[1] 赵善定[2] 任华宁[1] 李金超[1,2] 贾健[1] 李英[2] 李文明[1] 

机构地区：[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,陕西西安710054

出　　处：《地质通报》2013年第11期1845-1854,共10页Geological Bulletin of China

基　　金：中国地质调查局项目(编号:1212010531602;1212011085083和12120113047300)

摘　　要：对新疆—甘肃—内蒙古衔接区的1∶20万地球化学数据研究结果表明,该区Cu地球化学异常主要与基性、超基性岩和斑岩体有关,成矿元素组合为Co-Zn-Cr-Ni-Cu;W地球化学异常主要与中酸性岩有关,成矿元素组合为W-Sn-Bi。区内主要铜、钨矿床和新发现的矿床(点)均有相应元素区域异常显示,表明地球化学异常在本区具有重要指示意义。在全区确定了4个Cu地球化学省、5个W地球化学省、15个Cu区域异常和17个W区域异常,其中上马崖—铜山Cu地球化学省、黄山—梧桐窝子—葫芦北Cu地球化学异常带、土屋—赤湖Cu区域异常、大狐狸山Cu地球化学省、鹰嘴红山W地球化学省、古堡泉—柳园W地球化学省、英姿山W区域异常具有重要的找矿意义。According to the 1：200000 geochemical data of the Xinjiang-Gansu-Inner Mongolia border area, the copper geochemical anomalies are mainly related to the mafic-ultramafic rocks and the porphyry bodies, and the ore-forming elements are of Co-Zn- Cr-Ni-Cu combination; the tungsten geochemical anomalies are mainly related to the intermediate-acid rocks, and the ore-forming elements are of W-Sn-Bi combination. Most of the copper deposits and tungsten deposits in this area have the corresponding element anomalies, suggesting that the geochemical anomalies have important prospecting significance. The authors identified 4 copper geo- chemical provinces, 5 tungsten geochemical provinces, 15 copper regional anomalies and 17 tungsten regional anomalies, among which Shangmaya-Tongshan copper geochemical province, Huangshan-Wutongwozi-Hulubei copper geochemical anomaly belt, Tuwu- Chihu copper regional anomaly, Dahulishan copper geochemical province, Yingzuihongshan tungsten geochemical province, Gubao- quan-Liuyuan tungsten geochemical province and Yingzishan tungsten regioilal anomaly have important ore-prospecting significance.

关 键 词：Cu地球化学异常 W地球化学异常 新疆-甘肃一内蒙古衔接区 东天山 北山 

分 类 号：P632[天文地球—地质矿产勘探]