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Title: Structural Inventory of Great Basin Geothermal Systems and Definition of Favorable Structural Settings

Abstract

Structural controls of 426 geothermal systems in the Great Basin region including western Nevada, central Nevada, northwestern Nevada, northeastern Nevada, east-central Nevada, eastern California, southern Oregon, and western Utah were analyzed with literature research, air photos, Google Earth imagery, and/or field reviews. Of the systems analyzed, we were able to determine the structural settings of more than 240 sites. The structural catalogue is stored in a master spreadsheet included in this submission. Data components include structural setting, primary fault orientation, presence or absence of Quaternary faulting, reservoir lithology, geothermometry, presence or absence of recent magmatism, and distinguishing blind systems from those that have surface expressions. Systems were cataloged into the following eight major groups, based on the dominant pattern of faulting: - Major normal fault segments (i.e., near displacement maxima). - Fault bends. - Fault terminations or tips. - Step-overs or relay ramps in normal faults. - Fault intersections. - Accommodation zones (i.e., belts of intermeshing oppositely dipping normal faults), - Displacement transfer zones whereby strike-slip faults terminate in arrays of normal faults. - Transtensional pull-aparts. These settings form a hierarchal pattern with respect to fault complexity. - Major normal faults and fault bends are the simplest. - Fault terminationsmore » are typically more complex than mid-segments, as faults commonly break up into multiple strands or horsetail near their ends. - A fault intersection is generally more complex, as it generally contains both multiple fault strands and can include discrete dilational quadrants. - A step-over consists of two overlapping fault terminations and thus involves additional complexity, especially where the relay ramp is breached by multiple fault splays between the main overlapping faults and thus contains multiple fault intersections. - Accommodation zones involve further complexity, as they contain multiple fault terminations and fault intersections.« less

Authors:
Publication Date:
Other Number(s):
355
DOE Contract Number:  
EE0002748
Research Org.:
USDOE Geothermal Data Repository (United States); University of Nevada
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Geothermal Technologies Program (EE-4G)
Collaborations:
University of Nevada Reno
Subject:
15 Geothermal Energy
Keywords:
geothermal; Quaternary Faults; Structural Controls; Blind Geothermal Systems; Temperature; Geothermometry; field visits; western Nevada; central Nevada; northwestern nevada; northeastern nevada; east-central nevada; eastern california; southern oregon; western utah; utah; nevada; oregon; california; baltazor hot spring; blue mountain; bog hot spring; dyke hot springs; howard hot spring; macFarlane hot spring; McGee Mountain; pinto hot springs; beowawe; crescent valley; hot springs point; dann ranch; hand-me-down hot springs; golconda; pumpernickel valley; tipton hot springs; ash springs; chimney hot spring; duckwater; hiko hot spring; iverson spring; moon river hot spring; moorman spring; railroad valley; williams hot spring; walleys hot spring; antelope valley; fales hot springs; buckeye hot springs; travertine hot springs; teels marsh; rhodes marsh; columbus marsh; alum-silver peak; fish lake valley; gabbs valley; wild rose; rawhide-wedell hot springs; alkali hot springs; baileys/hicks/burrell hot springs; alvord hot spring; baileys hot spring; burrell hot spring; hicks hot spring; antelope hot spring; hart mountain; borax lake; crump geyser; mickey hot spring; newcastle; veyo hot spring; dixie hot spring; thermo; roosevelt; cove fort; red hill hot spring; joseph hot spring; hatton hot spring; abraham-baker hot springs; great basin; hot creek butte
Geolocation:
44.991419536079,-110.4331625|33.925360940459,-110.4331625|33.925360940459,-122.55098125|44.991419536079,-122.55098125|44.991419536079,-110.4331625
OSTI Identifier:
1148722
DOI:
https://doi.org/10.15121/1148722
Project Location:

DOE DataExplorer Dataset Location Google Map

Citation Formats

Faulds, James E. Structural Inventory of Great Basin Geothermal Systems and Definition of Favorable Structural Settings. United States: N. p., 2013. Web. doi:10.15121/1148722.
Faulds, James E. Structural Inventory of Great Basin Geothermal Systems and Definition of Favorable Structural Settings. United States. doi:https://doi.org/10.15121/1148722
Faulds, James E. 2013. "Structural Inventory of Great Basin Geothermal Systems and Definition of Favorable Structural Settings". United States. doi:https://doi.org/10.15121/1148722. https://www.osti.gov/servlets/purl/1148722. Pub date:Tue Dec 31 00:00:00 EST 2013
@article{osti_1148722,
title = {Structural Inventory of Great Basin Geothermal Systems and Definition of Favorable Structural Settings},
author = {Faulds, James E.},
abstractNote = {Structural controls of 426 geothermal systems in the Great Basin region including western Nevada, central Nevada, northwestern Nevada, northeastern Nevada, east-central Nevada, eastern California, southern Oregon, and western Utah were analyzed with literature research, air photos, Google Earth imagery, and/or field reviews. Of the systems analyzed, we were able to determine the structural settings of more than 240 sites. The structural catalogue is stored in a master spreadsheet included in this submission. Data components include structural setting, primary fault orientation, presence or absence of Quaternary faulting, reservoir lithology, geothermometry, presence or absence of recent magmatism, and distinguishing blind systems from those that have surface expressions. Systems were cataloged into the following eight major groups, based on the dominant pattern of faulting: - Major normal fault segments (i.e., near displacement maxima). - Fault bends. - Fault terminations or tips. - Step-overs or relay ramps in normal faults. - Fault intersections. - Accommodation zones (i.e., belts of intermeshing oppositely dipping normal faults), - Displacement transfer zones whereby strike-slip faults terminate in arrays of normal faults. - Transtensional pull-aparts. These settings form a hierarchal pattern with respect to fault complexity. - Major normal faults and fault bends are the simplest. - Fault terminations are typically more complex than mid-segments, as faults commonly break up into multiple strands or horsetail near their ends. - A fault intersection is generally more complex, as it generally contains both multiple fault strands and can include discrete dilational quadrants. - A step-over consists of two overlapping fault terminations and thus involves additional complexity, especially where the relay ramp is breached by multiple fault splays between the main overlapping faults and thus contains multiple fault intersections. - Accommodation zones involve further complexity, as they contain multiple fault terminations and fault intersections.},
doi = {10.15121/1148722},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {12}
}