地质力学学报2016，Vol.22Issue(2)：269-284,16.
构造-蚀变-地球化学综合找矿预测方法研究--以陕西小秦岭金矿田Q173号矿脉为例
STUDY ON THE Q173 VEIN IN XIAOQINLING GOLD FIELD WITH THE METHOD OF STRUCTURE-ALTERATION-GEOCHEMISTRY PROSPECTING PREDICTION
摘要
Abstract
In this paper we use the comprehensive method of structure-alteration-structural superimposed halo to research the prospecting prediction of the Q173 vein in Xiaoqinling gold field, and we come to the following understanding that the controlling fracture of the Q173 vein mainly experienced three tectonic movements. In early mineralization compressoshear structure is the dextral shear deformation, and during the mineralization stage it first experiences brittle transtensional tectonic deformation of right lateral thrust and then undergoes a composite overlay of the NE-trending extensional tectonic, and eventually forms multi-metal quartz veins. Tectonic activity is not obvious in late mineralization stage with some normal faults and no obvious superimposed mineralization enrichment. Through studying the structural ore-controlling regularity, the ore body is considered to the west side. The wall rock alteration shows that the alteration assemblage closely related to gold mineralization is pyritization-silicification-sericitization. The anomalous characteristics of the structural superimposed halo in the deep indicate that the blind ore body is present. According to the research results with the comprehensive prospecting forecast method, there exists mineralization and enrichment areas in the west of Q173 vein below 1070 m elevation that can be verified by engineering someday.关键词
小秦岭/构造控矿/围岩蚀变/构造叠加晕/找矿预测Key words
Xiaoqinling/the ore controlling structure/the wall rock alteration/structural superimposed halo/prospecting prediction分类
天文与地球科学引用本文复制引用
张欢欢,白和,王和平,月贵,韩舫,杨优望,牟培吉..构造-蚀变-地球化学综合找矿预测方法研究--以陕西小秦岭金矿田Q173号矿脉为例[J].地质力学学报,2016,22(2):269-284,16.基金项目
中国地质调查局整装勘查区基础地质调查与潜力评价工程子项目“陕西小秦岭金矿田深部及外围金矿整装勘查区找矿预测与技术应用示范” （）
