2-M Probe Survey At Salt Wells Area (Skord, Et Al., 2011)
Exploration Activity: 2-M Probe Survey At Salt Wells Area (Skord, Et Al., 2011)
|Exploration Activity Details|
|Location||Salt Wells Geothermal Area|
|Exploration Technique||2-M Probe Survey|
|Activity Date||2011 - 2011|
Two-meter temperature surveys were conducted at Salt Wells Basin from February to May 2011, with the goal of distinguishing and mapping zones of upwelling and outflow of hydrothermal fluids. The study also tests the ability of shallow temperature survey methods recently refined by the Great Basin Center for Geothermal Energy to evaluate the structural controls of geothermal areas (Coolbaugh et al. 2007; Sladek et al. 2009; Kratt 2009).
Two-meter temperature data were measured at approximately 50 stations using a Resistance Temperature Device (RTD) lowered through a hollow steel temperature probe tipped with tungsten for easier ground penetration. Corrections were applied to these data to account for seasonal temperature drift of +4°C, measured in several base stations between the months of February and May. Two-meter temperatures ranged from 10°C to 45°C, with high temperature measurement stations defining a roughly north-south trending anomaly spanning several kilometers that is believed to represent an outflow zone along the eastern flank of the Bunejug Mountains. Subtle to moderate temperature anomalies (between 13 and 25°C) were measured in Simpson Pass, and are interpreted as the main zone of upwelling within the Salt Wells geothermal system. The highest temperature measurements occurred to the north of the producing geothermal plant, and may represent an additional upwelling zone within the outflow plume associated with known fault scarps on the Basin’s western margin.
- Justin Skord, Patricia H. Cashman, Mark Coolbaugh, Nicholas Hinz (2011) Mapping Hydrothermal Upwelling and Outflow Zones: Preliminary Results from Two-Meter Temperature Data and Geologic Analysis at Lee Allen Springs and Salt Wells Basin