绩溪上金山钨矿重磁与钨异常特征及找矿意义  

THE CHARACTERISTICS OF GRAVITATIONAL,MAGNETIC AND TUNGSTEN ANOMALIES IN THE SHANGJINSHAN TUNGSTEN ORE DEPOSIT IN JIXI COUNTY AND THEIR IMPLICATIONS FOR ORE PROSPECTING

作　　者：张恩厚 向娣宝 ZHANG En-hou;XIANG Di-bao(Geophysical Prospecting Unit of East China Bureau of Metallurgical Geology and Exploration,Wuhu,Anhui 241004,China)

机构地区：[1]华东冶金地质勘查局物探队,安徽芜湖241004

出　　处：《安徽地质》2020年第2期124-128,共5页Geology of Anhui

摘　　要：绩溪上金山钨矿区含景阳-叶家矿段和磨盘尖矿段,景阳-叶家矿段钨矿为中高温热液充填石英脉型白钨矿,磨盘尖矿段钨矿为热液交代层控矽卡岩型白钨矿,两者成矿类型不同,所表现的重磁、钨异常特征各不相同。本文重点对两个矿段重磁、钨异常特征进行总结,景阳-叶家矿段钨矿上磁、钨异常同现,磨盘尖矿段钨矿上少有磁、钨异常,有高重力异常,重力异常边部常伴随钨异常。两矿段钨矿的重磁、钨异常各异特征,为本地区寻找同类型钨矿提供物化探异常标志。There are the Jingyang-Yejia and the Mopanjian ore sections in the Shangjinshan tungsten ore zone in Jixi County.The Jingyang-Yejia ore section is characterized by quartz vein formed by hydrothermal filling,while the Mopanjian ore section is of strata-bound skarn scheelite type formed by hydrothermal metasomatism.The metallogenic types of the two are different,and their gravitational,magnetic and tungsten anomalies are different in features,which are separately summarized in this paper.In the Jingyang-Yejia ore section,magnetic and tungsten anomalies occur simultaneously,however,in the Mopanjian ore section,there are few magnetic and tungsten anomalies but high gravitational anomalies.The differences in gravitational,magnetic and tungsten anomalies in the two sections provide a marker in terms of geophysical and geochemical anomaly for prospecting the same type of tungsten deposit in this area.

关 键 词：景阳-叶家钨矿段 磨盘尖钨矿段 重磁异常特征 钨异常特征 

分 类 号：P631[天文地球—地质矿产勘探]