TWO-DIMENSIONAL MODELING OF MAGNETIC ANOMALY DATA REDUCED TO THE POLES IN THE ANDESITIC PROSPECT AREA OF THE SOUTHEAST SLOPE OF SLAMET VOLCANO, INDONESIA
Journal: Earth Science Malaysia (ESMY)
Sehah, Urip Nurwijayanto Prabowo, Sukmaji Anom Raharjo, Rizky Intan Prasetya
This is an open access article distributed under the Creative Commons Attribution License CC BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
Reduction to the pole (RTP) is a magnetic anomaly data processing filter to remove the influence of the magnetic inclination angle. This filter is needed because of the magnetic dipole nature which complicates the interpretation process. The research aims to explore andesite rocks through the application of RTP to the local magnetic anomalies data in Kutasari District, Purbalingga Regency, Indonesia. The research procedures include data acquisition, processing, modeling, and interpretation. The 2D-modeling results on the local magnetic anomalies data have produced three layers of rock. Layer with a susceptibility value of 0.00291 cgs is interpreted as vesicular andesitic rocks, layer with a susceptibility value of 0.02307 cgs is interpreted as massive andesitic rocks, meanwhile layer with a susceptibility value of 0.00721 cgs is interpreted as undifferentiated volcanic rocks. The results showed that the west to northwest part of the study area is the most prospective area containing andesite rocks.