Geothermal Systems in Nevada with Geothermometry

Table of Contents



IDENTIFICATION_INFORMATION

Citation: Citation_Information: Coolbaugh, M.F., Taranik, J.V., Raines, G.L., Shevenell, L.A., Sawatzky, D.L., Minor, T.B., and Bedell, R., 2002, A geothermal GIS for Nevada: defining regional controls and favorable exploration terrains for extensional geothermal systems; Proceedings, Annual Meeting, Reno, NV., Sept. 22-25, 2002, Geothermal Resources Council Transactions, v. 26, p. 485-490. Originator: Publication_Date: 20040801 Title: Geothermal Systems in Nevada with Geothermometry Edition: 1 Geospatial_Data_Presentation_Form: Map Publication_Information: Publication_Place: Reno, NV Publisher: Great Basin Center for Geothermal Energy Other_Citation_Details: Online_Linkage: HTTP://www.unr.edu/Geothermal/ Larger_Work_Citation: Citation_Information: Originator: Publication_Date: Title: Publication_Information: Publication_Place: Publisher: Online_Linkage: Description: Abstract: Description: This is a specialized, reduced set of geochemical data on hot springs and geothermal systems of Nevada designed to be used for spatial statistical analysis. This data set has been used to assess correlations between geothermal systems in Nevada and geological, geochemical, and geophysical phenomena. One of the more distinctive features of this data set is the fact that no two data points lie less than 10 kilometers from each other. This restriction was imposed in order to minimize distortions in statistics when large numbers of individual spring or well analyses exist for a single “geothermal system”. Selection Criteria: This shapefile contains all geothermal systems in Nevada that fit the following restrictive criteria: 1) Unless measured temperatures were ³ 100 °C, no geothermal system was included if geothermometer estimates were not available. 2) A minimum distance of 10 km between geothermal systems was required. Higher temperature systems had preference over lower temperature systems where two candidates occurred less than 10 km apart. 3) Oil wells greater than 500 meters in depth were not used, because in many of them, temperatures don’t appreciably exceed the regional gradient. Purpose: For geologic, mineral, or geothermal exploration For targeting high-temperature geothermal systems Supplemental_Information: Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: Ending_Date: Currentness_Reference: Status: Progress: Complete Maintenance_and_Update_Frequency: Unknown Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -248682.5463 East_Bounding_Coordinate: 242701.4411 North_Bounding_Coordinate: 4952632.1372 South_Bounding_Coordinate: 4201549.1590 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Geothermal Theme_Keyword: Hot Springs Theme_Keyword: Geothermometry Place: Place_Keyword_Thesaurus: None Place_Keyword: Great Basin Place_Keyword: Nevada Place_Keyword: Western United States Access_Constraints: Use_Constraints: This spatial information was derived from a variety of sources.  Care was taken in the creation of these themes, but they are provided "as is".  The Great Basin Center for Geothermal Energy, the University of Nevada, Reno or any of the data providers cannot accept any responsibility for errors, omissions, or positional accuracy in the digital data or underlying records. There are no warranties, expressed or implied, accompanying this data set. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Great Basin Center for Geothermal Energy Contact_Person: Richard Zehner Contact_Position: Research Scientist/Assistant GIS Specialist Contact_Address: Address_Type: mailing and physical address Address: MS 172, University of Nevada, Reno City: Reno State_or_Province: NV Postal_Code: 89557 Country: USA Contact_Voice_Telephone: 775-784-7055 Contact_Facsimile_Telephone: Contact_Electronic_Mail_Address: zehner@unr.edu Hours_of_Service: 8-5 M-F Pacific Time Native_Data_Set_Environment: ArcView version 3.3 shapefile format Top

DATA_QUALITY_INFORMATION

Attribute_Accuracy: Attribute_Accuracy_Report: unknown Logical_Consistency_Report: Completeness_Report: Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: unknown Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: unknown Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Great Basin Center for Geothermal Energy Publication_Date: 2002 Title: geosysNV Edition: 1 Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Reno, NV Publisher: Great Basin Center for Geothermal Energy Other_Citation_Details: see above Online_Linkage: HTTP://www.unr.edu/Geothermal/ Larger_Work_Citation: Citation_Information: Originator: Publication_Date: Title: Publication_Information: Publication_Place: Publisher: Online_Linkage: Source_Scale_Denominator: Type_of_Source_Media: Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: Ending_Date: Source_Currentness_Reference: current Source_Citation_Abbreviation: Source_Contribution: Process_Step: Process_Description: Source_Used_Citation_Abbreviation: Process_Date: Source_Produced_Citation_Abbreviation: Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Organization: Great Basin Center for Geothermal Energy Contact_Person: Contact_Position: Contact_Address: Address_Type: mailing and physical address Address: City: Reno State_or_Province: NV Postal_Code: 89557 Country: USA Contact_Voice_Telephone: Contact_Facsimile_Telephone: Contact_Electronic_Mail_Address: Hours_of_Service: Top

SPATIAL_DATA_ORGANIZATION_INFORMATION

Direct_Spatial_Reference_Method: Point Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 159 Top

SPATIAL_REFERENCE_INFORMATION

Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: Lambert Conformal Conic Lambert_Conformal_Conic: Standard_Parallel: 33.000000 Standard_Parallel: 45.000000 Longitude_of_Central_Meridian: -117.000000 Latitude_of_Projection_Origin: 0.000000 False_Easting: 0.000000 False_Northing: 0.000000 Standard_Parallel: 33.000000 Standard_Parallel: 45.000000 Longitude_of_Central_Meridian: -117.000000 Latitude_of_Projection_Origin: 0.000000 False_Easting: 0.000000 False_Northing: 0.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: Coordinate pair Coordinate_Representation: Abscissa_Resolution: Ordinate_Resolution: Planar_Distance_Units: Meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.4000000 Denominator_of_Flattening_Ratio: 294.98 Top

ENTITY_AND_ATTRIBUTE_INFORMATION

Overview_Description: Description of fields in the attribute table database: Id: identification number Name: name of geothermal system or hot springs State: state of location Type: type of energy produced, if any Source: first or principal reference County: county of location Name_2: secondary name the geothermal system may be known by Class_4: Classed according to maximum temperature (Max_temp): ³ 160°C = high, 100-159°C = medium, 70-99°C = low, 37-69°C = warm. Mw_e: Megawatts of electric power generating capacity Max_meas_t: Maximum measured temperature (°C) Geotherm_t: Average of silica and Na-K-Ca-Mg geothermometer temperature estimates (°C). Methods of calculating the Na-K-Ca-Mg and SiO2 geothermometers are the same as those used by Mariner et al. (1983, see below). Max_temp: Greater of maximum measured temperature (Max_meas_t) and geothermometer estimated temperature (Geotherm_t) (°C). Entity_and_Attribute_Overview: Unknown Entity_and_Attribute_Detail_Citation: Unknown Top

DISTRIBUTION_INFORMATION

Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: Great Basin Center for Geothermal Energy Contact_Person: Richard E. Zehner Contact_Position: Research Scientist/Assistant GIS Specialist Contact_Address: Address_Type: mailing and physical address Address: MS 172, University of Nevada, Reno City: Reno State_or_Province:NV Postal_Code: 89557 Country: USA Contact_Voice_Telephone:775-784-7055 Contact_Facsimile_Telephone: Contact_Electronic_Mail_Address: zehner@unr.edu Hours_of_Service: 8-5, M-F, Pacific Time Resource_Description: Distribution_Liability:This spatial information was derived from a variety of sources.  Care was taken in the creation of these themes, but they are provided "as is".  The Great Basin Center for Geothermal Energy, the University of Nevada, Reno or any of the data providers cannot accept any responsibility for errors, omissions, or positional accuracy in the digital data or underlying records. There are no warranties, expressed or implied, accompanying this data set. Top

METADATA_REFERENCE_INFORMATION

Metadata_Date: 8/16/2004 Metadata_Review_Date: Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization:Great Basin Center for Geothermal Energy Contact_Person: Richard E. Zehner Contact_Position: Research Scientist/Assistant GIS Specialist Contact_Address: Address_Type: Mailing and physical address Address: MS 172, University of Nevada, Reno City: Reno State_or_Province:NV Postal_Code: 89557 Country: USA Contact_Voice_Telephone: 775-784-7055 Contact_Facsimile_Telephone: Contact_Electronic_Mail_Address: zehner@unr.edu Hours_of_Service: 8-5 M-F Pacific Time Metadata_Standard_Name: FGDC CSDGM Metadata_Standard_Version: FGDC-STD-001-1998 Top