Sipoholon is located in the North Sumatra Province, Indonesia. Magnetotelluric (MT) method was used in this filed campaign to find conductive structures, which correspond to geothermal fluids. In the picture, from left to right, are Dr. Nukman (geologist), Toni (geophysicist), Faizal (geophysicist). They were trying to find a good location (i.e. wide and flat area) for setting up MT instruments close to Permian Granite outcrops.
Sipoholon, Indonesia, July 22, 2011