Essentials of Geology by Stephen Marshak (4th) (2012) W . W . NORTON & COMPANY - 370page Steam rising from the Nesjavellir Geothermal Power Station in Iceland. (From : wikipedia) Geothermal power station in the Philippines (From : Wikipedia) Krafla Geothermal Station in northeast Iceland (From : Wikipedia) Enhanced geothermal system (From : Wikipedia) 1:Reservoir 2:Pump house 3:Heat exchanger 4:..
