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All Journal PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL)
Dadan Wildan
Ilmu-Fisika Eksplorasi Geothermal Universitas Indonesia, Salemba, Jakarta
Electrical & Electronics Engineering Energy Physics Other

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STUDI AWAL KARAKTERISTIK POLA RESISTIVITAS SISTEM PANAS BUMI TEMPERATUR RENDAH-MENENGAH DI INDONESIA Dadan Wildan; Syafrima Wahyu
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 4 (2015): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2015
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

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Abstract

Electrical resistivity is a common geophysical method to identify component in geothermal system. Resitivity value is affected by porosity, fluid saturation, temperature, salinity and the most important is type/proportion of clay minerals. By using geoelectric method resistivity values obtained at low – intermediate temperature of the geothermal system oka, wai selabung, banda baru, maranda, sembalun and bonjol, for clay cap and reservoir are between 8 – 50 Ωm and 50 – 250 Ωm respectively. The low resistivity is possibly due to occurrence of smectite and chlorite which formed on temperature < 180oC with Cation Exchange Capacity (CEC) value ranging from 120 -10. Keywords: Geothermal System, resistivity, clay minerals, CEC.
Co-Authors Syafrima Wahyu