Remote Sensing-Based Interpretation and Analysis of Hydrothermal Alteration Zones in Mount Patuha and Surrounding, Bandung Regency, West Java Adang Saputra 1*, Denny Lumban Raja1, and Murni Sulastri 1
Geological Technology Study Program, Politeknik Energi Pertambangan Bandung, Indonesia
Abstract
The research was located in the Mount Patuha area, which is part of the Bandung Regency. Gemorphologically, this area consists of undulating hills with a slope gradient of around 10% to above 45%. Vegetation in the area consists of forests, mixed plantations and rice fields which are generally planted with trees.
Interpretation and analysis of this hydrothermal alteration were conducted using remote sensing. Remote sensing is a method for collecting data or information without touching the object being studied. In this study, the author used Landsat 8 OLI/TIRS Satellite Imagery. Remote sensing is widely used for geothermal exploration because it has the advantage of not requiring large costs and can also access remote areas. The research aimed to map hydrothermal alteration areas regionally in Rancabali District and its surroundings, Bandung Regency, West Java. The research was conducted by processing several bands with pixel ranges that can represent hydrothermal alteration minerals in the study area. The method used in the study was Density Slicing. Alteration minerals detected in the research area are yellow to orange using composite images 4/2, 6/7, 5 and 10. From the research results, it was obtained that hydrothermally altered rocks reached an area of 20,409,300 m2 or 2,040.93 hectares (Ha).
Keywords: Remote sensing, Mount Patuha, Hydrothemal, Alteration minerals,
