IJOG : Indonesian Journal on Geoscience
Vol 8, No 3 (2013)

Extensional Tectonic Regime of Garut Basin based on Magnetotelluric Analysis

Handayani, Lina ( Pusat Penelitian Geoteknologi - LIPI Jln. Sangkuriang, Bandung)
Kamtono, Kamtono ( Pusat Penelitian Geoteknologi - LIPI Jln. Sangkuriang, Bandung)
Wardhana, D. D. ( Pusat Penelitian Geoteknologi - LIPI Jln. Sangkuriang, Bandung)



Article Info

Publish Date
03 Jul 2014

Abstract

DOI: 10.17014/ijog.v8i3.162Garut Basin are is part of Bandung-Garut Greater Basin (Bandung Zone) characterized by a large basin surrounded by mountain ranges. Active volcanoes had distributed their material as pyroclastic deposits around the outer border of the zone and as lava flow deposit separating the two basins. Bouguer gravity anomaly data had also indicated the presence of several low anomaly closures at about the area of Bandung and Garut Basins that were surrounded by high gravity anomaly zones. Two magnetotelluric surveys were completed to acquire the subsurface model that might explain the tectonic evolution of studied area. The first stage was characterized sby the presence of horst - graben structures that might imply an extensional regime of the area. The next stage of evolutionwas indicated by the horizontal layering correlated to the relative non-active tectonic. In addition, a most recent structure that appeared near the surface might suggest a possible extension force as the current stage.

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Journal Info

Abbrev

IJOG

Publisher

Subject

Earth & Planetary Sciences

Description

The spirit to improve the journal to be more credible is increasing, and in 2012 it invited earth scientists in East and Southeast Asia as well as some western countries to join the journal for the editor positions in the Indonesia Journal of Geology. This is also to realize our present goal to ...