浅谈电法在福建安溪铅山矿区的找矿效果

Notes on the Ore-finding Effect of the Electrical Method in the Qianshan Lead-zinc Minefield of Anxi County,Fujian Province

安溪县铅山铅锌矿区地质普查阶段开展了物探工作(激电中梯剖面、激电测深),发现了激电异常,结合矿区成矿地质条件,推断异常是由隐伏铅锌矿(化)引起,提出了进一步工作的建议,经钻探验证得以证实。该区激电异常是一个深部找矿的有效标志,电法工作为该普查区顺利转入详查阶段起了一定作用。

The geophysical operations such as and the induced polarization depth the induced polarization sounding were carried intermediate gradien profile out during the geologic reconnaissance of the Qianshan lead-zinc minefield in Anxi County. The induced polarization anomaly has been discovered in the surveyed area. It is inferred that the anomaly results from the buried lead--zinc ores combined with the ore-forming geologic conditions of the minefield. Some proposals for the further geological working are put forward in the paper, which have been proven by the drilling exploration. The induced polarization anomaly is an effective indicator for searching for deep mineral ores in the surveyed area. The electrical method plays some roles of the shift to the detailed prospecting stage from general prospecting stage in the area.