Identification of the distribution of golf mineral carrier rocks using the geomagnetic method in Pujut Lombok

Abstract

Lombok Island is one of Indonesia's regions that has high gold potential. The purpose of this study was to determine the distribution and potential of rocks containing gold in Pujut, Central Lombok. The method used is geomagnetic. The results showed that the moderate geomagnetic anomaly was the response of the gold mineral host rock scattered in the center of the study area. The 2D inversion model shows that the rock layers in the study area consist of sandstone, claystone, tuff, tuff breccia, basalt, cracks, intrusions, and faults. This type of rock is thought to be a carrier of gold minerals, except for clay, basalt and breccia. The depth of the gold-bearing rock layer is 0 m to 230 m from the ground surface, with a volume of 1.22x109 m3 in an area of 12 km2. In the future it is necessary to drill and analyze the gold content. &nbsp