Identification of alteration zone and gold mineralization based on magnetic anomaly and 3D model of geomagnetic satellite data inversion of Mount Pongkor Area, West Java

Mount Pongkor is one of the areas in Indonesia with largest gold mineralization potential Java. One geophysical methods to identify distribution zones geomagnetic method that utilizes magnetic properties subsurface due influence rock magnetization. Geomagnetic research has been conducted at Pongkor, Bogor Regency, West Java an area 22 x 17 km as much 793 satellite data from National Oceanic and Atmospheric Administration (NOAA) website corrected daily. This study aims determine alteration area. The results showed RTP map shows anomalies ranging -4.786 – 4.663 nT, high north-south direction associated anomaly values 1.881 nT low -4,786 - (-2.174) nT. In 3D inversion model, zone average depth 350 2600 m topography susceptibility contrast -0.35 (- 0.25) SI 2800 0.25 0.35 SI.©2022 JNSMR UIN Walisongo. All rights reserved.