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
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