Magnetotellurics

From Open Energy Information

Exploration Technique: Magnetotellurics

[edit]
Exploration Technique Information
Exploration Group: Geophysical Techniques
Exploration Sub Group: Electrical Techniques
Parent Exploration Technique: Magnetotelluric Techniques
Information Provided by Technique
Lithology: Rock composition, mineral and clay content
Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults
Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water
Thermal: Resistivity influenced by temperature
Cost Information
Low-End Estimate (USD): 522.22
52,222 centUSD
0.522 kUSD
5.2222e-4 MUSD
5.2222e-7 TUSD
/ station
Median Estimate (USD): 1,738.83
173,883 centUSD
1.739 kUSD
0.00174 MUSD
1.73883e-6 TUSD
/ station
High-End Estimate (USD): 2,297.62
229,762 centUSD
2.298 kUSD
0.0023 MUSD
2.29762e-6 TUSD
/ station
Time Required
Low-End Estimate: 1.67 days
0.00457 years
40.08 hours
0.239 weeks
0.0549 months
/ 10 stn
Median Estimate: 3.77 days
0.0103 years
90.48 hours
0.539 weeks
0.124 months
/ 10 stn
High-End Estimate: 7.50 days
0.0205 years
180 hours
1.071 weeks
0.246 months
/ 10 stn
Additional Info
Cost/Time Dependency: Location, Size, Resolution, Terrain, Weather
Dictionary.png
Magnetotellurics:
Magnetotellurics (MT) is a natural-source (i.e., passive), electromagnetic method that measures the ratio of earth’s naturally varying electric and magnetic fields over a wide range of frequencies to determine the resistivity structure of the subsurface (Reynolds, 1997).
Other definitions:Wikipedia Reegle


 
Introduction
"See Magnetotelluric Techniques<br><br> MT is currently the resistivity method of choice for many geothermal exploration companies due in large part to its superior range of depth of penetration (several tens of meters to several tens of kilometers) over other resistivity methods." cannot be used as a page name in this wiki.
See Magnetotelluric Techniques

MT is currently the resistivity method of choice for many geothermal exploration companies due in large part to its superior range of depth of penetration (several tens of meters to several tens of kilometers) over other resistivity methods.

 
Use in Geothermal Exploration
"See Electrical Techniques: Use in Geothermal Exploration<br><br> In geothermal applications MT can be used to delineate the resource by indirectly mapping the smectite clay ring (where low temperature clay alteration transits to more resistive higher temperature alteration) that typically exists around a geothermal resource. MT is commonly used in the volcanic settings (such as the Cascades Region), because most projects are relatively deep, and most successful conventional resources will have a thick clay cap." cannot be used as a page name in this wiki.
See Electrical Techniques: Use in Geothermal Exploration

In geothermal applications MT can be used to delineate the resource by indirectly mapping the smectite clay ring (where low temperature clay alteration transits to more resistive higher temperature alteration) that typically exists around a geothermal resource. MT is commonly used in the volcanic settings (such as the Cascades Region), because most projects are relatively deep, and most successful conventional resources will have a thick clay cap.

 
Related Techniques

  • Electrical Techniques
  •  
    Field Procedures
    The given value was not understood.
    A magnetotelluric survey consists of electric and magnetic measurements at the earth's surface.
    Typical layout for a standard MT recording station, indicating relative electrode line and induction magnetometer positions.[1]

     
    Data Access and Acquisition
    The given value was not understood.
    Metronix ADU07 data logger.[2]


    Magnetotelluric time series with each recorded channel indicated. Ex and Ey are the electrical measurements while Hx, Hy and Hz are the three components of the magnetic field measurements.[2]

     
    Potential Pitfalls


    The given value was not understood.
     
    References
    1. (Moombariga Geoscience, 2009) "Magnetotelluric Methods "
    2. 2.0 2.1 (Metronix, n.d.) "ADU-07e Product Memo "


    Page Area Activity Start Date Activity End Date Reference Material
    Magnetotellurics (Laney, 2005) Unspecified


    Magnetotellurics (Muse, 1973) Unspecified


    Magnetotellurics At Akutan Fumaroles Area (Kolker, Et Al., 2010) Akutan Fumaroles Area


    Magnetotellurics At Alum Area (DOE GTP) Alum Geothermal Area


    Magnetotellurics At Beowawe Hot Springs Area (Garg, Et Al., 2007) Beowawe Hot Springs Area


    Magnetotellurics At Brady Hot Springs Area (Combs 2006) Brady Hot Springs Area


    Magnetotellurics At Central Nevada Seismic Zone Region (Pritchett, 2004) Central Nevada Seismic Zone Geothermal Region


    Magnetotellurics At Coso Geothermal Area (2004) Coso Geothermal Area 2004 2004


    Magnetotellurics At Coso Geothermal Area (2006) Coso Geothermal Area 2006 2006


    Magnetotellurics At Cove Fort Area (Toksoz, Et Al, 2010) Cove Fort Geothermal Area


    Magnetotellurics At Dixie Hot Springs Area (Combs 2006) Dixie Hot Springs Area


    Magnetotellurics At Dixie Valley Geothermal Area (Iovenitti, Et Al., 2013) Dixie Valley Geothermal Area 2012 2012


    Magnetotellurics At Dixie Valley Geothermal Area (Laney, 2005) Dixie Valley Geothermal Area 2003 2003


    Magnetotellurics At Dixie Valley Geothermal Area (Wannamaker, Et Al., 2006) Dixie Valley Geothermal Area 2006 2006


    Magnetotellurics At Dixie Valley Geothermal Area (Wannamaker, Et Al., 2007) Dixie Valley Geothermal Area 2006 2007


    Magnetotellurics At Glass Mountain Area (Cumming And Mackie, 2007) Glass Mountain Geothermal Area


    Magnetotellurics At Grass Valley Area (Morrison, Et Al., 1979) Grass Valley Area


    Magnetotellurics At International Geothermal Area, Indonesia (Laney, 2005) International Geothermal Area Indonesia


    Magnetotellurics At Jemez Pueblo Area (DOE GTP) Jemez Pueblo Area


    Magnetotellurics At Kilauea East Rift Geothermal Area (Laney, 2005) Kilauea East Rift Geothermal Area 2003 2004


    Magnetotellurics At Kilauea Southwest Rift And South Flank Area (Laney, 2005) Kilauea Southwest Rift And South Flank Area


    Magnetotellurics At Long Valley Caldera Geothermal Area (Hermance, Et Al., 1988) Long Valley Caldera Geothermal Area 1988 1991


    Magnetotellurics At Long Valley Caldera Geothermal Area (Nordquist, 1987) Long Valley Caldera Geothermal Area 1986


    Magnetotellurics At Mccoy Geothermal Area (DOE GTP) Mccoy Geothermal Area


    Magnetotellurics At Mcgee Mountain Area (DOE GTP) Mcgee Mountain Area


    Magnetotellurics At New River Area (DOE GTP) New River Area


    Magnetotellurics At Newberry Caldera Area (DOE GTP) Newberry Caldera Area


    Magnetotellurics At Northern Basin & Range Region (Pritchett, 2004) Northern Basin and Range Geothermal Region


    Magnetotellurics At Nw Basin & Range Region (Pritchett, 2004) Northwest Basin and Range Geothermal Region


    Magnetotellurics At Raft River Geothermal Area (1977) Raft River Geothermal Area 1977 1977


    Magnetotellurics At Rio Grande Rift Region (Aiken & Ander, 1981) Rio Grande Rift Geothermal Region


    Magnetotellurics At Roosevelt Hot Springs Area (Combs 2006) Roosevelt Hot Springs Area


    Magnetotellurics At Roosevelt Hot Springs Geothermal Area (Ward, Et Al., 1978) Roosevelt Hot Springs Geothermal Area 1978 1978


    Magnetotellurics At Salt Wells Area (Bureau of Land Management, 2009) Salt Wells Geothermal Area 2008 2008


    Magnetotellurics At Silver Peak Area (DOE GTP) Silver Peak Area


    Magnetotellurics At Socorro Mountain Area (Owens, Et Al., 2005) Socorro Mountain Area


    Magnetotellurics At Soda Lake Area (Combs 2006) Soda Lake Area


    Magnetotellurics At Stillwater Area (Laney, 2005) Stillwater Area


    Magnetotellurics At Truckhaven Area (Layman Energy Associates, 2010) Truckhaven Area


    Magnetotellurics At Truckhaven Area (Warpinski, Et Al., 2004) Truckhaven Area


    Magnetotellurics At U.S. West Region (Aiken & Ander, 1981) U.S. West Region


    Magnetotellurics At Valles Caldera - Redondo Geothermal Area (Wilt & Haar, 1986) Valles Caldera - Redondo Geothermal Area 1986


    Magnetotellurics At Valles Caldera - Sulphur Springs Geothermal Area (Wilt & Haar, 1986) Valles Caldera - Sulphur Springs Geothermal Area 1986


    Magnetotellurics At Walker-Lane Transitional Zone Region (Pritchett, 2004) Walker-Lane Transition Zone Geothermal Region
    Document #Analysis
    Type
    ApplicantGeothermal
    Area
    Lead
    Agency
    District
    Office
    Field
    Office
    Mineral
    Manager
    Surface
    Manager
    Development
    Phase(s)
    Techniques
    DOI-BLM-NV-B020-2010-0106-CXCXSierra Geothermal PowerAlum Geothermal AreaBureau of Land ManagementBLM Battle Mountain District OfficeBureau of Land ManagementBureau of Land ManagementGeothermal/ExplorationHyperspectral Imaging
    Magnetic Techniques
    Magnetotellurics
    Slim Holes
    Z-Axis Tipper Electromagnetics
    NVN-084629CUVulcan EnergyPatua Geothermal AreaBLM Nevada State OfficeBLM Winnemucca District OfficeBLM Humboldt River Field OfficeBLMBLMGeothermal/ExplorationMagnetotellurics
    NVN-086285CUMagma EnergyDesert Peak Geothermal AreaBLMBLM Winnemucca District OfficeBLM Humboldt River Field OfficeBLMBLMGeothermal/ExplorationMagnetotellurics
    NVN-086286CUMagma EnergyDesert Queen Geothermal AreaBLM Nevada State OfficeBLM Winnemucca District OfficeBLM Humboldt River Field OfficeBLMBLMGeothermal/ExplorationMagnetotellurics
    NVN-086761CUColado Project, LLCBLM Nevada State OfficeBLM Winnemucca District OfficeBLM Humboldt River Field OfficeBLMBLMGeothermal/ExplorationMagnetotellurics
    NVN-087791CUTGP Dixie Development CompanyNew York Canyon Geothermal AreaBLM Nevada State OfficeBLM Winnemucca District OfficeBLM Humboldt River Field OfficeBLMBLMGeothermal/ExplorationMagnetotellurics
    NVN-087811CUTGP Dixie Development CoNew York Canyon Geothermal AreaBLM Nevada State OfficeBLM Winnemucca District OfficeBLM Humboldt River Field OfficeBLMBLMGeothermal/ExplorationMagnetotellurics
    NVN-89306CUTerra Gen Dixie Valley Development CoBLM Nevada State OfficeBLM Winnemucca District OfficeBLM Humboldt River Field OfficeBLMBLMGeothermal/ExplorationMagnetotellurics


    <metadesc> About Magnetotellurics, a geothermal exploration technique, including areas of use. </metadesc>