At the Core – January 2022 Keep up to date on what is going on at Utah FORGE. Read about it in the...

Mineral Geothermometer
A secondary mineral phase whose stability is defined by a lower and sometimes an upper temperature threshold. Common mineral geothermometers comprise clays, zeolites and epidote, with crystal structures that contain a hydroxyl (OH–) or water (H2O) molecule. The temperature ranges of mineral geothermometers are calibrated from investigations of a large number of drilled geothermal resources where mineral zonations and temperature gradients have been determined.
Geothermal Glossary
Word of the Week – Mud Pots and Mud Pools
Mud Pots and Mud Pools Depressions filled with hot bubbling mud commonly associated with steaming ground. The mud is mostly made up of clay minerals which form as an alteration product and interaction between acidic condensed steam and rock-forming minerals.
Word of the Week – MWD
MWD Refers to Measurement While Drilling which for directional drilling includes geospatial information that is used to steer the bottom hole assembly (BHA). Inclination and azimuth are surveyed using accelerometers and magnetometers which are incorporated into MWD...
Word of the Week – Numerical Modeling
Numerical Modeling Application of computational methods to solve complex problems that predict the behavior or the outcome of a real-world or physical system that evolves in space and time.








