Identification of the geological structure on the NPR Geothermal Area based on 3D Modeling Gravity Data. (May 2019)

• Record Type: Journal Article
• Authors: Rizaldi, N P; Dewi, R; Indriana, R D; Harmoko, U
• Is Part Of: Journal of physics. Volume 1217(2019)
• Publication Date: 2019-05
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1217/1/012043
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: This research does to know the geological structure of the NPR geothermal area. We applied a gradient analysis and 3D modelling of gravity data based on bouguer anomaly, the additional method of euler deconvolution analysis to estimate the depth of the geological structure. The data consist of 325 points which was measured by PSDMBP team, Bandung. Based on the the result of horizontal gradien which is located at the maximum value and controlled by of vertical derivative which is located is at zero, we interpret that the appearance of a goethermal manifestation such as fumarole and hot spring controlled by the presence of fault. The average depth fault of Euler Deconvolution is < 288.5 meters to >480.2 meters. 3D modelling results indicates volcanic breksi stone, lava andesitand tuff and the presence of fault with some changing significantly rocks densities in the southwest and northwest to southeast research area.