Chapter 1

Geology of Geothermal Regions


Geothermal energy—Earth’s heat—can be found anywhere in the world. But the high-temperature energy that is needed to drive electric generation stations is found in relatively few places. The purpose of this opening chapter is to provide the geologic framework within which high-temperature geothermal resources can be understood, both with regard to their occurrence and their nature.


Hydrothermal; hot dry rock; geopressure; magma; deep hydrothermal; plate tectonics; subduction

Birth and death. Like us, geothermal features begin and end, moving through cycles of their own. We draw towards them, lured by change, beauty, and an unusual cast of the familiar—water, rocks, and heat. We search them ...

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