Geothermal Project Development Advances Knowledge of Region’s Geology
Pictured above is our head Geologist Roy Mink, fellow Pagosa Verde Board Member Lori Schell and local resident Bonnie Masters looking at one of the core samples from the drilling of a thermo gradient well. A core sample is a cylindrical section of the geology / rock collected from the subsurface. Samples are collected in core boxes which contains about 10 feet of core. The pictured box of core shows natural fractures in the Dakota formation. This fracture is most likely the source for 48 PSI water that was encountered at 359 feet below the surface.
Most wells in the Pagosa Springs area are drilled with rotary drilling techniques which pulverizes rock, so the region does not have core samples for investigation and detailed knowledge of the subsurface geology. The core samples we collect provide needed information to guide geothermal project development through this exploratory investigation, and also provide incredibly valuable insight into the regions geology. As Pagosa Verde drills, we perform a field assessment of the core and then we will provide the samples to Colorado School of Mines and, eventually, to the Core Research Center (CRC) in Denver.
The Core Research Center (CRC) was established in 1974 by the U.S. Geological Survey (USGS) to preserve valuable rock cores for use by scientists and educators from government, industry, and academia. The cylindrical sections of rock are permanently stored and available for examination and testing at the core storage and research facility in Denver, Colorado. The CRC is currently one of the largest and most heavily used public core repositories in the United States.