豫陕小秦岭金矿带综合信息成矿预测  

Metallogenic prediction of the Xiaoqinling gold belt with comprehensive information in Henan and Shaanxi provinces

作　　者：王丹[1,2] 陈建平[1,2] 刘畅[1,2] Wang Dan;Chen Jianping;Liu Chang(School of Earth Sciences and Resources,China University of Geosciences(Beijing),Beijing 100083,China;Beijing Key Laboratory for Land and Resources Information Research&Development,Beijing 100083,China)

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]北京市国土资源信息研究开发重点实验室,北京100083

出　　处：《地质学刊》2022年第4期389-397,共9页Journal of Geology

基　　金：GF科技重点实验室基金项目“基于地质大数据分析的矿产预测关键技术研究”(73952020006)。

摘　　要：小秦岭位于华北陆块南缘、秦岭造山带北部,是仅次于胶东地区的全国第二大黄金产地,金矿资源储量丰富,找矿潜力很大。以小秦岭为研究区,基于区域地质概况、成矿地质背景研究,建立小秦岭金矿带找矿模型,并结合GIS与RS对研究区地质、矿产资源、化探异常、遥感蚀变异常等成矿有利信息,进行提取、分析及综合处理,建立研究区成矿预测模型,采用证据权重法对其进行二维定量预测,圈定成矿靶区,为开展小秦岭地区区域找矿工作提供理论指导和勘查建议。Xiaoqinling is located in the southern edge of the North China craton and the northern Qinling orogenic belt.It is the second largest gold producing area in China after Jiaodong gold deposit,Shandong Province.It is rich in gold reserves and of excellent prospecting potential.Taking the Xiaoqinling area as the research object,based on the researches of the regional geology and metallogenic geological background,this paper establishes the ore-finding model for the gold belt in the study area,and combines GIS and RS to extract and analyze favourable information of geology,mineral resources,geo-chemical anomalies,remote sensing alteration anomalies and other ore-forming information in the study area,establishes a metallogenic prediction model,uses the evidence weighting method to make two-dimensional quantitative predictions and circle metallogenic targets.Finally,it provides a theoretical guidance and exploration suggestions for the development of regional ore prospecting the in the Xiaoqinling area.

关 键 词：金矿带 GIS 蚀变提取 二维成矿预测 小秦岭 

分 类 号：P628[天文地球—地质矿产勘探] P618.51[天文地球—地质学]