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Table of contents

Geothermal Energy

Energy in the News

Source of Geothermal Heat

Internal Earth Temperatures

Plate Boundaries

Sources of Hot Rock

Global Geothermal Resources

Boiling Mudpot

Erupting Volcano

Old Faithful Geyser

Geothermal Reservoir

Geothermal Prospecting

Temperature Gradient Data

A Successful Borehole: Steam!!

Producing Geothermal Well

Dry Steam Power Plant

Geysers Dry Steam Geothermal Plant

New Zealand Geothermal Power Plant

Flash Steam Geothermal Power Plant

Binary Cycle Geothermal Power Plant

Geothermal Gradients USA

US Geothermal Resource Areas

Conventional and Ground Source Geothermal

California: Potential Geothermal Resources

Geothermal Greenhouse

Keeping the Street Clear (with Geothermal Steam)

SO2 and CO2 emissions

Author: W

E-mail: menke@ldeo.columbia.edu