What three types of geothermal prospects are related

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5. What three types of geothermal prospects are related to volcanic activity? (page 217, para 1) The prospects for generating geothermal power from hot dry rocks is speculative- artificial fractures are established between two closely spread holes- Even molten rock is a potential source of power- although scientifically it is feasible to extract power directly from shallow bodies of magma beneath volcanic centers- geothermal reservoirs have been identified as potential for power. 6. How much heat in joules does magma contain? (page 219, para 2, sentence 2) The US geological survey estimated that identified resources of geothermal reservoirs exceeding 150 degrees celcius generate 23,000 megawatts of electricity for 30 days that identified geothermal reservoirs of less than 150 degrees celcius generate 280,000 megawatts of thermal power for hot water and heating for 30 years. Chapter 16 : Volcanic Treasures 1. What rock types are more often associated with ore deposits and what is the source for the minerals? (page 224, para 2)
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The type of rock surrounding the cooling magma reservoir is important to the formation of ore desposits (andesite, dacite, rhyolite) The rocks surrounding the magmatic roots of volcanoes are the source of the valuable elements- The rocks act as a heat source that pumps ground water into a circulating system. 2. How much gold escapes every day from the gas vents of Galeras Volcano in Columbia? (page 225, para 2 to page 226) 0.5 kilograms of gold escapes to the atmosphere everyday from the gas vents and more than 20 kilograms of gold per year are being deposited into the volcano.
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  • Fall '08
  • Campbell-mccrea,M
  • Volcano, Geothermal power

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