根据区域重磁异常在豫西南圈定多金属成矿远景区  

THE DELINEATION OF POLYMETALLIC ORE-FORMING PROSPECTIVE AREAS IN SOUTHWEST HENAN BASED ON REGIONAL GRAVITY AND MAGENTIC ANOMALIES

作　　者：王纪中[1] 

机构地区：[1]河南省地质调查院,河南郑州450001

出　　处：《物探与化探》2011年第4期468-472,共5页Geophysical and Geochemical Exploration

摘　　要：在对豫西南地区1∶20万区域重力资料和1∶5万航磁资料综合整理分析的基础上,结合地质资料对豫西南地区的深部构造、断裂构造及岩浆岩特征进行了深入研究,圈定了隐伏、半隐伏岩体和断裂构造,并根据地质、矿产和物化探综合信息,分析了成矿区带与岩体及构造的关系,总结出了成矿区带的区域重磁场特征,圈出了9个成矿远景区,为豫西南地区寻找深部矿和隐伏矿提供了重要信息。On the basis of an integrated analysis of the data related to the regional gravity and aeromagnetic survey on the scales of 1∶200 000 and 1∶50 000 in southwestern Henan in combination with a detailed study of deep-buried structures and faults as well as characteristics of magmatic rocks in the study area,the authors delineated concealed or semi-concealed intrusive bodies and faults.Furthermore,researches on the relationship between the mineralization zone,intrusive rocks and the structures based on geological,geochemical and geophysical data revealed that the features of regional gravity and aeromagnetic fields are related to the mineralization zone,with the delineation of 9 prospective ore-forming areas.The results contribute important information to the prospecting for deep and concealed ore deposits in southwest Henan area.

关 键 词：重磁异常 地质构造 多金属成矿远景区 豫西南地区 

分 类 号：P631[天文地球—地质矿产勘探] P632[天文地球—地质学]