GEOLOGI DAERAH PANAS BUMI ULUBELU TANGGAMUS, LAMPUNG UTARA BERDASARKAN ANALISIS METODE MAGNETOTELLURIK (MT)

Saultan Panjaitan (Pusat Survei Geologi)

Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources)
Vol. 20 No. 2 (2010): Jurnal Sumber Daya Geologi

Low resistivities of 0 – 15 Ώ m are interpreted as impermeable zones, functiming as cap rocks wich is hydrothermal alteration estimated to cinsist of clay. The midle resistivity 15 – 70 Ώ m is interpreted as permeable reservoir rocks located at 1250 – 2000 metres depth. The resistivity > 1000 Ώ m are metamorphic carbonate rocks. Block I in south of Mt.Rendingan and Block II at around Pagaralam hot spring formed up flow zone fluid reservoir having temperature of more than 260ºC, and contained 80 % vapour faction.Keywords: Geothermal,resistivity, impermeable, cap rock, hydrothermal alteration