勉略宁多金属矿集区区域地球化学特征与找矿方向  

Regional Geochemistry Characters and Exploration Direction for Mianxian-Lueyang-Ningqiang Multi-Metal Deposit Cluster Area,Shaanxi Province,China

作　　者：任小华[1] 王瑞廷[2] 毛景文[3] 李春兰 向婷婷 汪军谊 

机构地区：[1]长安大学地球科学与资源学院,陕西西安710054 [2]西北有色地质勘查局地质勘查院,陕西西安710054 [3]中国地质大学地球科学与资源学院

出　　处：《地球科学与环境学报》2007年第3期221-226,共6页Journal of Earth Sciences and Environment

基　　金：国家重大基础研究计划项目(1999043211);中国地质调查局项目(200310200001)

摘　　要：通过对勉略宁多金属矿集区1∶5万化探分散流数据计算、成图和综合研究,表明该区区域地球化学特征明显,区域地球化学场强度总体呈西低东高之势,煎茶岭—大院子地区所有成矿元素均呈高值场,与其赋存的已知矿床吻合。区域地球化学异常集中并成带分布,可划分为勉县—略阳、勉县—大安驿—阳平关和茶店—代家坝—屋基坪3个异常带,其中勉县—略阳异常带中的鱼洞子—煎茶铺异常段、勉县—大安驿—阳平关异常带中的代家坝—大安驿异常段与中部麻柳铺—硖口驿及红土石—徐家沟—红木沟异常段等地段是该矿集区金、镍、铜、铁等金属矿种进一步的勘查找矿方向。Through calculating and studying the geochemical data from geochemical exploration in scale of 1 ： 50 000 in Mianxian-Lueyang-Ningqiang multi-metals deposit cluster area, it is found that there are a clear regional geochemical features in the area. In general, the regional geochemical field in east is stronger than the one in west. In Jianchaling- Dayuanzi region, all of ore-forming elements show strong geochemical field, it is concided with the existence of the known ore deposits in this region. The regional geochemical anamoly in whole region is distributed concentrately in zones, and can be devided into three geochemical anamoly zones, including Mianxian-Lueyang, Mianxian-Daanyi- Yangpingguan, and Chadian-Daijiaba-Wujiping zones. The Yndongzi-Jianchapu geochemical anamoly section in Mianxian-Lueyang anamoly zone, Daijiaba-Daanyi geochemical anamoly section in Mianxian-Daanyi-Yangpingguan anamoly zone, and Maliupu-Xiakouyi and Hongtushi-Xujiagou-Hongmugou geochemical anamoly sections in the central part are the main exploration targets for prospecting Au, Ni, Cu, and Fe ore deposits in the region.

关 键 词：多金属矿集区 区域地球化学特征 找矿方向 勉略宁地区 陕西省 

分 类 号：P618[天文地球—矿床学] P597[天文地球—地质学]