Announcing SSA session De-risking Deep Geothermal Projects: Geophysical Monitoring and Forecast...
Chlorite
A micaceous mineral that is commonly green-colored, composed of iron and/or magnesium, and forms due to hydrothermal alteration of amphiboles, pyroxenes, and feldspars.
Geothermal Glossary
Word of the Week – Hot Dry Rock
Hot Dry Rock Hot crystalline rock with essentially no porosity and lacking producible hot water. Geothermal production from hot dry rock reservoirs is the primary goal of EGS (enhanced geothermal system) research in which cold water is injected and hot fluid is...
Word of the Week – Hydraulic Fracture
Hydraulic Fracture A rock-hosted tensile fracture that is created by injection of fluid under high pressure.
Word of the Week – Hydraulic Gradient
Hydraulic Gradient The slope on the water table which promotes horizontal fluid flow in permeable rock units.