Geodetic Survey

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Exploration Technique: Geodetic Survey

Exploration Technique Information
Exploration Group: Remote Sensing Techniques
Exploration Sub Group: Passive Sensors
Parent Exploration Technique: Passive Sensors
Information Provided by Technique
Lithology:
Stratigraphic/Structural: Map regional strain rates
Hydrological:
Thermal:
Cost Information
Low-End Estimate (USD): 250.0025,000 centUSD
0.25 kUSD
2.5e-4 MUSD
2.5e-7 TUSD
/ point
Median Estimate (USD): 600.0060,000 centUSD
0.6 kUSD
6.0e-4 MUSD
6.0e-7 TUSD
/ point
High-End Estimate (USD): 1,500.00150,000 centUSD
1.5 kUSD
0.0015 MUSD
1.5e-6 TUSD
/ point
Time Required
Low-End Estimate: 5 days0.0137 years
120 hours
0.714 weeks
0.164 months
/ job
Median Estimate: 15 days0.0411 years
360 hours
2.143 weeks
0.493 months
/ job
High-End Estimate: 20 days0.0548 years
480 hours
2.857 weeks
0.657 months
/ job
Additional Info
Cost/Time Dependency: Location, Size
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Geodetic Survey:
Geodetic surveys study Earth’s geodynamical phenomena (e.g., crustal motion, gravitational field) using a satellite-borne global positioning system (GPS) in conjunction with terrestrial base stations. Geodetic surveys measure three-dimensional changes in crustal motion at the mm-scale. Measurements are typically made over very large areas (1010 km2) spanning years.
Other definitions:Wikipedia Reegle



 
Use in Geothermal Exploration

Map Regional Strain Rates
  • GPS geodetic survey can be used to map regional strain rates, which can be applied as boundary conditions to study areas within which a more detailed study of the stress field (see Section 0) can be preformed.[1]
  • Regional studies in the Great Basin have indicated that the locations of existing geothermal fields, as well as the spatial pattern of heat flow, are strongly correlated with areas of high tectonic strain rates.[2]
  • Areas experiencing transitional changes in strain style and, to a lesser extent, transtensional strain, are well correlated to the occurrence of geothermal systems, consistent with structural analyses.[3]




 
Data Access and Acquisition

  • Geodesy data is collected via satellite.
  • Data is collected over a period of years, which often does not fit into an exploration programs timeline. Data may already exist, however, for some areas with geothermal potential.
  • Geodetic surveys are often an academic pursuit, measuring long-term tectonic uplift and plate motion.










Page Area Activity Start Date Activity End Date Reference Material
Geodetic Survey (Monaster And Coolbaugh, 2007) Unspecified


Geodetic Survey At Central Nevada Seismic Zone Region (Blewitt Et Al, 2005) Central Nevada Seismic Zone Geothermal Region


Geodetic Survey At Central Nevada Seismic Zone Region (Blewitt, Et Al., 2003) Central Nevada Seismic Zone Geothermal Region


Geodetic Survey At Central Nevada Seismic Zone Region (Laney, 2005) Central Nevada Seismic Zone Geothermal Region


Geodetic Survey At Kilauea Summit Area (Keller, Et Al., 1979) Kilauea Summit Area


Geodetic Survey At Long Valley Caldera Geothermal Area (Newman, Et Al., 2006) Long Valley Caldera Geothermal Area 1995 2000


Geodetic Survey At Medicine Lake Area (Poland, Et Al., 2006) Medicine Lake Area


Geodetic Survey At Nevada Test And Training Range Area (Sabin, Et Al., 2004) Nevada Test And Training Range Area


Geodetic Survey At Northern Basin & Range Region (Blewitt Et Al, 2005) Northern Basin and Range Geothermal Region


Geodetic Survey At Northern Basin & Range Region (Blewitt, Et Al., 2003) Northern Basin and Range Geothermal Region


Geodetic Survey At Northern Basin & Range Region (Laney, 2005) Northern Basin and Range Geothermal Region


Geodetic Survey At Nw Basin & Range Region (Blewitt Et Al, 2005) Northwest Basin and Range Geothermal Region


Geodetic Survey At Nw Basin & Range Region (Blewitt, Et Al., 2003) Northwest Basin and Range Geothermal Region


Geodetic Survey At Nw Basin & Range Region (Laney, 2005) Northwest Basin and Range Geothermal Region


Geodetic Survey At Walker-Lane Transitional Zone Region (Blewitt Et Al, 2005) Walker-Lane Transition Zone Geothermal Region


Geodetic Survey At Walker-Lane Transitional Zone Region (Laney, 2005) Walker-Lane Transition Zone Geothermal Region


Geodetic Survey At Yellowstone Region (Hellman & Ramsey, 2004) Yellowstone Caldera Geothermal Region


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