Thermal Gradient Holes At Twenty-Nine Palms Area (Page, Et Al., 2010)
Exploration Activity: Thermal Gradient Holes At Twenty-Nine Palms Area (Page, Et Al., 2010)
|Exploration Activity Details|
|Location||Twenty-Nine Palms Geothermal Area|
|Exploration Technique||Thermal Gradient Holes|
From November 2008 to March 2009, Seabees from the Naval Construction Division (NCD) successfully completed fivetemperature gradient holes for the GPO. Samples taken from each hole were similar in nature; mixtures of sand and conglomerates with the occasional granite sections were typically encountered. Each hole varied slightly in depth, ranging from 600ft to 1,000ft; however, each hole has been completed to acceptable standards of the GPO. Upon completion of drilling, 3" metal tubing was inserted to bottom depth, filled with water to the surface, then capped and sealed (Figure 6). "Both the temperature-gradient drilling and the fault-structure analyses with the use of LiDAR mapping have proven to be extremely useful in assisting the GPO to define targets for intermediate to deep drilling in mid-to late 2010."
- Christopher Page, Howard Ross, Jeff Unruh, Michael Strane, Wei-Chuang Huang (2010) Field Investigations And Temperature-Gradient Drilling At Marine Corps Air-Ground Combat Center (Mcagcc), Twenty-Nine Palms, Ca