AN OVERVIEW GEOTHERMAL SURVEY

AT TANGKUBAN PERAHU VOLCANO AND ITS SURROUNDING AREAS

July 4-9, 2011 presented by Nanang Dwi Ardi

STRUCTURAL GEOLOGY

(the main factor, but not easy....)

Matching MapMain target

X

Main targetX

Matching MapMain target

X

Main targetX

2nd target

2nd target

Main targetX

2nd target

Rock Distribution

Piroclastic rock

Rock Distribution

Piroclastic rock

Lava

Columnar joints

Rock Distribution

Piroclastic rock

Lava

Columnar joints

Rock Distribution

Piroclastic rock

Lava

Columnar joints

Lava, a little vesicular lava spot

Rock Distribution

Piroclastic rock

Lava

Columnar joints

Lava, a little vesicular lava spot

Rock Distribution

Piroclastic rock

Lava

Columnar joints

Lava, a little vesicular lava spot

Rock Distribution

Piroclastic rock

Lava

Columnar joints

Lava, a little vesicular lava spot

But, what happen next, if geological setting met geothermal surface manifestation?

Geothermal Manifestation

Kawah Baru Kawah Upas

Kawah Ratu

Kawah Domas

Kawah Ratu

Kawah Domas

Geothermal ManifestationKawah Baru

Freatic volcanowith wet steams

Geothermal Manifestation

Kawah Ratu

Kawah Domas

W E

Geological Model Approach

Geothermal Manifestation

Kawah Ratu

Kawah Domas

W E

Kawah Baru Kawah Upas

Geological Model Approach

Evidence of faulting on Domas Crater

Kawah Ratu

Kawah Domas

W E

Kawah Baru Kawah Upas

Geological Model Approach

N

Geothermal Manifestation

Kawah Baru Kawah Upas

Kawah Ratu

Kawah Domas

W E

T = 45°CpH =6,7

HCO3- = 1200 mg/L

9,2 km

5,3 kmT= 34°CpH=2,73

HCO3-= 0 mg/L

Bicarbonate

9,2 km

5,3 kmAcid sulfate

chlorideAcid sulfate

chloride

Bicarbonate

?

AcknowledgementsAll lecturers, friends, & commitees.

Thanks for all your kindness on knowledge sharing to build imagination.....