地球化学块体理论在青海沱沱河地区铅锌资源潜力预测中的应用  

The application of geochemical block theory to lead and zinc resources assessment in Tuotuohe area of Qinghai Province

作　　者：刘长征[1,2] 陈岳龙[1] 许光[1,2] 赵娟[1,2] 李玥[1] 李琳业 姬丙艳[1,2] 汪元奎 

机构地区：[1]中国地质大学(北京)地球科学与资源学院,北京100083 [2]青海省第五地质矿产勘查院,青海西宁810028

出　　处：《地学前缘》2011年第5期271-282,共12页Earth Science Frontiers

基　　金：国土资源大调查项目"青藏高原东缘国土资源综合调查项目"(基[2002]003-25;基[2003]001-21);西北地区基础地质调查及数据更新项目(基[2006]003-24;基[2007]003-14)

摘　　要：以地球化学块体理论为基础的方法和技术确定了沱沱河铅锌地球化学块体的下限和含量级次,对沱沱河地区铅锌元素的地球化学块体进行了划分,总结了地球化学块体在空间上的分布规律,通过研究地球化学块体内部结构,追踪大型至特大型矿床可能存在的地点。根据已知地区的矿产探明储量与地球化学块体的关系,计算了该地区成矿率,预测了区内铅锌矿资源潜力,同时指出在块体内还存在巨大的寻找铅锌矿产资源的潜力。The threshold and different concentration levels of geochemical blocks of lead and zinc in Tuotuohe area were determined with geochemical methodology and technology and the blocks were delineated.The authors have summarized the spatial distribution characteristics of geochemical blocks and traced the possible of occurrence of large to superlarge deposits through a study of the internal structure of the geochemical blocks.The relations between geochemical blocks and the proven deposits of Tuotuohe areas with high prospecting degree were studied and the mineralization coefficients were calculated,which was used in Tuotuohe area to forecast the potential reserve of lead and zinc.It is pointed out that there are great potential to search for lead and zinc mineral resources in these geochemical blocks.The results obtained will play a guiding role in strategic ore resource prognosis and exploration arrangement of this area.

关 键 词：地球化学块体 成矿率 资源潜力预测 铅锌矿 沱沱河地区 

分 类 号：P591.2[天文地球—地球化学]