SUHU BAWAH PERMUKAAN BERDASARKAN KEMUNCULAN MINERAL UBAHAN DAN GEOKIMIA AIR PANAS DALAM PEMBENTUKAN SISTIM PANAS BUMI LAPANGAN LEMBAHTRILAYA, PROVINSI BENGKULU
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Date
2007
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Abstract
ABSTRACT
Lembahtrilaya
Geothermal field is located about 180km at north of bengkulu city.
Lembahtrilaya Geothermal field is on exploration stage and have one exploration
well there is LT well. This research is for knowing geothermal model system of
Lembahtrilaya geothermal field by using LT well data, geochemical surface data
and geophysich data. At LT well there are four kind of litology there is
altered volcanic breccia, altered andecite basaltic breccias, altered andecite
breccias and altered andecite. Alteration
zone at LT well divided into two, there is argilic alteration zone and
propylitic alteration zone. Geochemical data which proceed is produce chlorida
hot water that can use as geothermometer. Reservoir temperature based on
alteration mineral, well thermometer and
water geochemical data produce temperature between 200o C – 220o
C. Upflow zone is located around Hululais Hill and outflow to north –
northeast research area. Hot source at
research area is estimate comes from rest activity of BT Hululais volcanism.
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Lembahtrilaya Geothermal field is located about 180km at north of bengkulu city, Tidak ada keyword, Tidak ada keyword