Determination LITHOLOGI rock subsurface sounding RESISTIVITAS USING THE METHOD IN THE MOUNTAIN REGION RAJABASA Geothermal Prospec

University of Lampung

SYAMSURIJAL RASIMENG*, NANDI HAERUDIN*, HARMEN** SYAMSURIJAL RASIMENG *, Nandi HAERUDIN *, ** HARMEN
*Program Studi Geofisika Universitas Lampung Geophysics Program * University of Lampung
**Jurusan Mesin FT Unila ** Department of Machine FT UNILA
rijal@unila.ac.id rijal@unila.ac.id


ABSTRACT Abstract
The Rajabasa is one of volcano strato with level of activity type B which located in province Lampung. The Rajabasa is one of strato volcano with activity level of type B is located in Lampung province. Existence of fluid Existence of fluid
geothermal in north caster (Sukamandi and Kecapi), south caster (Kunjir and coast Wartawan) and south-east caster Geothermal in north caster (Sukamandi and lute), south caster (Kunjir Journalists and coast) and south-east caster
(Simpur) be form of desorption of temperature dissociation energy of diatomic pickings coming from within the mount body. (Simpur) be the form of the desorption temperature of the dissociation energy of diatomic pickings coming from within the body mount.
The geothermal fluid comes from a source interpreted as magma chamber. The Geothermal fluid comes from the sources interpreted as a magma chamber. Resistivity methods with configuraton Resistivity methods with configuraton
schlumberger done to interpret lithology of rock around district manisfestation "Belerang Kering" (Sukamandi). Schlumberger done to interpret lithology of the rock around district manisfestation "sulfur Dry" (Sukamandi). Based on Based on
result of analysis obtained layer controlling fluid flow geothermal is high porosity rock layer so that loaded by fluid result of analysis obtained controlling layer Geothermal fluid flow is high porosity rock layer so that loaded by fluid
geothermal. Geothermal. The sandstone layer lays in various depth of 3-14 meter from surface. The sandstone layer lays in various depth of 3-14 meters from surface. Besides lithologi rock also occupied by Besides lithologi rock also occupied by
clay-tuff, gravel, and volcano deposit as top soil. clay-tuff, Gravel, and volcano deposits as top soil. While below sandstone layer there is rock layer which more compact While below sandstone rock layer is the layer which is more compact
(andesitic-basaltic?) as basement rock. (andesitic-basaltic?) as basement rock.

Key words: Rajabasa, volcano, resistivity, geothermal Key words: Rajabasa, volcano, resistivity, Geothermal
http://lemlit.unila.ac.id http://lemlit.unila.ac.id

PENENTUAN LITHOLOGI BATUAN BAWAH PERMUKAAN MENGGUNAKAN METODE RESISTIVITAS SOUNDING DI DAERAH PROSPEK GEOTHERMAL GUNUNG RAJABASA

Universitas Lampung

SYAMSURIJAL RASIMENG*, NANDI HAERUDIN*, HARMEN**
*Program Studi Geofisika Universitas Lampung
**Jurusan Mesin FT Unila
rijal@unila.ac.id


ABSTRACT
The Rajabasa is one of volcano strato with level of activity type B which located in province Lampung. Existence of fluid
geothermal in north caster (Sukamandi and Kecapi), south caster (Kunjir and coast Wartawan) and south-east caster
(Simpur) be form of desorption of temperature dissociation energy of diatomic pickings coming from within the mount body.
The geothermal fluid comes from a source interpreted as magma chamber. Resistivity methods with configuraton
schlumberger done to interpret lithology of rock around district manisfestation "Belerang Kering" (Sukamandi). Based on
result of analysis obtained layer controlling fluid flow geothermal is high porosity rock layer so that loaded by fluid
geothermal. The sandstone layer lays in various depth of 3-14 meter from surface. Besides lithologi rock also occupied by
clay-tuff, gravel, and volcano deposit as top soil. While below sandstone layer there is rock layer which more compact
(andesitic-basaltic?) as basement rock.

Key words: Rajabasa, volcano, resistivity, geothermal
http://lemlit.unila.ac.id