柴达木西北缘牛鼻子梁地区地球化学特征及找矿指导  

Geochemical characteristics and prospecting guidance of Niubiziliang area on the northwestern margin of Qaidam

作　　者：韩建军 刘会文[2] 李加好 赵明福[1] 李玉龙 Han Jianju;Liu Huiwen;LI Jiahao;Zhao Mingfu;Li Yulong(Qinghai Geological Survey,Xining 810001;Q inghai Geological Survey of Nuclear Industry,Xining 810008;School of Resources and Environmental Engineering,Hefei University of Technology,Hefei 230009)

机构地区：[1]青海省地质调查局,西宁810001 [2]青海省核工业地质局,西宁810008 [3]合肥工业大学资源与环境工程学院,合肥230009

出　　处：《地质科学》2018年第4期1455-1465,共11页Chinese Journal of Geology(Scientia Geologica Sinica)

基　　金：中国地质调查局基金项目（编号：资[2010]矿评02-01-16）和青海省地勘基金项目（编号：青国土资矿[2010]104号）资助.

摘　　要：牛鼻子梁地区位于柴达木盆地西北缘，属于典型的高原荒漠景观，开展大比例尺的地球化学测量，能获取更为真实地球化学信息，大大提高了地球化学信息的收集和地质找矿的效果。通过对牛鼻子梁地区的成矿地质特征及重要地球化学异常特征进行分析研究，发现与成矿密切相关的是晚泥盆世基性-超基性岩，断裂构造有一定的控制作用；地球化学异常中Cr、Co、Ni、La、Au等元素异常特征明显，结合内已有的成矿事实，表明寻找与基性-超基性岩体相关的铜镍矿、与韧性剪切带相关的金矿及稀有稀土矿的潜力较大，建议下一步优先对此类异常区进行详细查证和工程勘查。Niubiziliang area is located in the northwestern margin of the Qaidam Basin and is a typical plateau desert landscape. Large-scale geochemical surveys can be carried out to obtain more real geochemical information, which greatly improves the collection of geochemical information and the effect of geological prospecting. Through the analysis of the geological features of mineralization and important geochemical anomalies in Niubiziliang area, it is discovered that the Late Devonian basic-ultrabasic rocks are closely related to mineralization, and the fault structure has control in the mineralization process; the anomalous features of elements are obvious, such as Cr, Co, Ni, La, Au etc. Combined with existing ore-forming facts, there is high potential for finding copper-nickel ore related to basic-uhrabasic rock, and gold mines associated with the ductile shear zone, and rare and rare earth mineral deposits. It is recommended that the next step is to give priority in these anomaly zones to do detailed verification and engineering survey.

关 键 词：牛鼻子梁 基性-超基性岩体 地球化学特征 找矿指导 

分 类 号：P595[天文地球—地球化学] P617[天文地球—地质学]