Current Ongoing Progress Updates: The Utah FORGE team has started drilling its first highly...
Gneiss
Metamorphic rock that forms under intense pressure and high temperature and that is made of quartz, feldspar, amphibole and mica. Gneiss represents the highest grade of metamorphic rock, which is characterized by alternating bands of dark and light-colored minerals, foliation (i.e., parallel alignment of planar minerals) and tight folding. This rock type is common at mid to deep levels of continental crust.
Geothermal Glossary
Word of the Week – Two-Phase Flow
Two-Phase Flow A condition that is attained in production wells associated with high temperature (>200°C) geothermal reservoirs, wherein the flowing fluid comprises a mixture of steam and water. As the two-phase fluid depressurizes in the well, it expands causing...
Word of the Week – Turbine
Turbine Spinning axle mounted with fan blades that converts a fluid flow stream into mechanical energy. To produce electricity, the mechanical energy from the turbine is connected to a generator.
Word of the Week – Unconformity
Unconformity Geological term that refers to an ancient surface that has been buried and now represents a discontinuity or break between coherent masses of rock or strata.