Map showing areas excluded from consideration for CO2 sequestration because of proximity to potential mining areas.

Table of Contents



IDENTIFICATION_INFORMATION

Citation: Citation_Information: Originator: Ronald H. Hess Publication_Date: 2005 Title: Map showing areas excluded from consideration for CO2 sequestration because of proximity to potential mining areas. Edition: One Geospatial_Data_Presentation_Form: Map Publication_Information: Publication_Place: Reno, Nevada Publisher: Nevada Bureau of Mines and Geology Other_Citation_Details: Price, J.G., Hess, R.H., Fitch, S., Faulds, J.E, Garside, L.J., Shevenell, L., Warren, S., 2005, Preliminary Assessment of the Potential for Carbon Dioxide Disposal by Sequestration in Geological Settings in Nevada, Nevada Bureau of Mines and Geology Report 51 Online_Linkage: Larger_Work_Citation: Citation_Information: Originator: Jonathan G. Price; Ronald H. Hess; Shane Fitch; James E. Faulds; Larry J. Garside; Lisa Shevenell; Publication_Date: 2005 Title: Preliminary Assessment of the Potential for Carbon Dioxide Disposal by Sequestration in Geological Settings in Nevada Publication_Information: Publication_Place: Reno, Nevada Publisher: Nevada Bureau of Mines and Geology Online_Linkage: HTTP://www.nbmg.unr.edu/dox/dox.htm Description: Abstract: In this report we present a preliminary assessment of the potential for CO2 disposal by sequestration in geological settings in Nevada using analysis with geographic information systems (GIS). The key assumptions made are that for CO2 disposal in saline aquifers it is wisest to (1) avoid underground disposal in areas of fractured bedrock and restrict the assessment to parts of alluvial basins that are thick enough to provide a seal against leakage and have sufficient pressure to keep the CO2 in a condensed phase; (2) stay away from active faults whose fracture zones may allow leakage of CO2 from underground injection sites; (3) avoid areas that in the foreseeable future have a reasonably high probability of being explored and developed for mineral, geothermal, or water resources; (4) avoid current urban areas and areas that are likely to experience significant population growth during the 21st century; and (5) avoid restricted lands, such as parks and military reservations. The data sets used in the GIS analysis are made available in the electronic version of this report, so that others may reevaluate the approach with different assumptions and data sets. Purpose: In 2003, the State of California, in collaboration with the States of Alaska, Arizona, Oregon, and Washington, asked the State of Nevada to participate in a regional analysis of CO2 sequestration potential, through both terrestrial and geological approaches. The terrestrial approaches involve growing more biomass (particularly trees), and the geological options include proven technologies, such as using CO2 to enhance recovery from oil fields and disposal of CO2 in saline aquifers, and more unconventional approaches. As the state with the least amount of annual precipitation, Nevada has little potential for growing substantially more biomass relative to states along the Pacific Ocean. In this report we present a preliminary assessment of the potential for CO2 disposal by sequestration in geological settings in Nevada using analysis with geographic information systems (GIS). The key assumptions made are that for CO2 disposal in saline aquifers it is wisest to (1) avoid underground disposal in areas of fractured bedrock and restrict the assessment to parts of alluvial basins that are thick enough to provide a seal against leakage and have sufficient pressure to keep the CO2 in a condensed phase; (2) stay away from active faults whose fracture zones may allow leakage of CO2 from underground injection sites; (3) avoid areas that in the foreseeable future have a reasonably high probability of being explored and developed for mineral, geothermal, or water resources; (4) avoid current urban areas and areas that are likely to experience significant population growth during the 21st century; and (5) avoid restricted lands, such as parks and military reservations. The data sets used in the GIS analysis are made available in the electronic version of this report, so that others may reevaluate the approach with different assumptions and data sets. Supplemental_Information: Shape file format in UTM zone 11, NAD 27, projection. Map shows areas of potential mining activity. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 2004 Ending_Date: 2005 Currentness_Reference: NA Status: Progress: Complete Maintenance_and_Update_Frequency: Continually Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -120.1328 East_Bounding_Coordinate: -113.7995 North_Bounding_Coordinate: 41.9890 South_Bounding_Coordinate: 35.0756 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: CO2 Theme_Keyword: Sequestration Theme_Keyword: Mining Theme_Keyword: Resources Theme_Keyword: Geology Theme_Keyword: Exploration Place: Place_Keyword_Thesaurus: None Place_Keyword: Carson City Place_Keyword: Churchill County Place_Keyword: Clark County Place_Keyword: Douglas County Place_Keyword: Elko County Place_Keyword: Esmeralda County Place_Keyword: Eureka County Place_Keyword: Humboldt County Place_Keyword: Lander County Place_Keyword: Lincoln County Place_Keyword: Lyon County Place_Keyword: Mineral County Place_Keyword: Nevada Place_Keyword: Nye County Place_Keyword: Pershing County Place_Keyword: Storey County Place_Keyword: Washoe County Place_Keyword: White Pine County Access_Constraints: Although these data have been processed successfully on the computer system at the Nevada Bureau of Mines and Geology, no warranty expressed or implied is made regarding the accuracy or utility of the data on any system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that these data be directly acquired from the Nevada Bureau of Mines and Geology. It is also strongly recommended that careful attention be paid to the contents of the metadata and readme files associated with this data. The Nevada Bureau of Mines and Geology shall not be held liable for improper use of the data described and/or contained herein. By using this data you hereby agree to these conditions. Use_Constraints: Reference and acknowledge the Nevada Bureau of Mines and Geology or the specific author in products derived from this data. Do not reproduce for commercial purposes. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Nevada Bureau of Mines and Geology Contact_Person: Ronald H. Hess Contact_Position: GIS Specialist Contact_Address: Address_Type: mailing and physical address Address: UNR M.S. 178 City: Reno State_or_Province: Nevada Postal_Code: 89557-0088 Country: USA Contact_Voice_Telephone: 775-784-6691 Ext. 121 Contact_Facsimile_Telephone: 775-784-1709 Contact_Electronic_Mail_Address: rhess@unr.edu Hours_of_Service: 7:30 AM - 3:00 PM PST Native_Data_Set_Environment: ArcView version 3.3 shapefile format c:\co2\model\fin_md_mm5_120_5k.shp Top

DATA_QUALITY_INFORMATION

Attribute_Accuracy: Attribute_Accuracy_Report: For model and presentation purposes at 1:500,000 scale or smaller. Logical_Consistency_Report: NA Completeness_Report: Complete for Nevada. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Merged polygon data designed to be used at 1:500,000 scale or smaller. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: NA Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Tingley, J.V. Publication_Date: 1998 Title: Mining districts of Nevada (second edition) Edition: Second Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Reno, Nevada Publisher: Nevada Bureau of Mines and Geology Other_Citation_Details: Tingley, J.V., 1998, Mining districts of Nevada (second edition): Nevada Bureau of Mines and Geology Report 47, 128 p. (Report 47d CDROM version). Online_Linkage: HTTP://www.nbmg.unr.edu/dox/r47/r47.pdf Larger_Work_Citation: Citation_Information: Originator: Publication_Date: Title: Publication_Information: Publication_Place: Publisher: Online_Linkage: Source_Scale_Denominator: 500000 Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: NA Ending_Date: NA Source_Currentness_Reference: 1998 Source_Citation_Abbreviation: MD Source_Contribution: Nevada mining district boundaries. Process_Step: Process_Description: The mineral resources layer is a compilation of four data sets. The first data set (Mining_Districts) is the "Mining Districts of Nevada" 2nd edition by Tingley (1998). This is a digital polygon coverage of mining districts in Nevada. The second data set (NV_MRDS) is the USGS Mineral Resource Data System (MRDS) database from "Nevada Abandoned Mines Database Compilation Update" by Hess (2001). A subset of MRDS data contained in this report was used as a point coverage indicating sites that have had some type of mineral exploration, development, or production. The original MRDS database was created and is still maintained by the USGS. Sand and gravel locations were removed before these data were used. The third data set (MILS2000) is the Mineral Inventory Lands System (MILS) database from Hess (2001). A subset of MILS data contained in this report was used as a point coverage indicating sites that have had some type of mineral exploration, development, or production. The original MILS data base was created by the U.S. Bureau of Mines and is no longer being updated. Sand and gravel locations were removed before these data were used. The fourth data set (Map_120_e) is the "Gold and silver resources in Nevada" database by Davis and Tingley (in press, updated from 1999). This map shows locations of deposits with a noted or implied gold and/or silver resource or reserve discovered since 1930. Base-metal and industrial-mineral deposits that contain a significant amount of gold or silver are also shown. This point coverage was used to show locations of known precious metal resources. Significant pre-1930 gold and silver deposits are captured in the second and third data sets. The second, third, and fourth data sets, all point coverages, were plotted with a 5-km buffer, which takes into account potential location inaccuracies, necessary space to develop a large surface or subsurface mine, and the potential for additional discoveries associated with the known resource. Five kilometers is also within the effective distance of large hydrothermal systems responsible for the formation of most ore deposits in Nevada. Once the point coverages were buffered, all three were combined with the mining district coverage using the union command. Internal polygons were dissolved by aggregating all areas that fell within a buffer or mining district area into single polygons. Portions of those polygons that fell outside of Nevada were clipped to the Nevada State boundary. Source_Used_Citation_Abbreviation: Process_Date: 2005 Source_Produced_Citation_Abbreviation: F_Md_mm5_120_5k Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Organization: Nevada Bureau of Mines and Geology Contact_Person: Ronald H. Hess Contact_Position: GIS Specialist Contact_Address: Address_Type: mailing and physical address Address: UNR M.S. 178 City: Reno State_or_Province: Nevada Postal_Code: 89557-0088 Country: USA Contact_Voice_Telephone: 775-784-6691 Ext. 121 Contact_Facsimile_Telephone: 775-784-1709 Contact_Electronic_Mail_Address: rhess@unr.edu Hours_of_Service: 7:30 AM - 3:00 PM PST Top

SPATIAL_DATA_ORGANIZATION_INFORMATION

Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Point_and_Vector_Object_Count: 1 Top

SPATIAL_REFERENCE_INFORMATION

Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 11 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999600 Longitude_of_Central_Meridian: -117.000000 Latitude_of_Projection_Origin: 0.000000 False_Easting: 500000.000000 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: Entity_and_Attribute_Overview: Only areas associated with possible mineral resources are shown. Entity_and_Attribute_Detail_Citation: Shape = Polygon Source3 = F_Md_mm5_120_5k Number3 = 3 Top

DISTRIBUTION_INFORMATION

Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: Nevada Bureau of Mines and Geology Contact_Person: Charlotte Stock Contact_Position: Publication Sales Manager Contact_Address: Address_Type: mailing and physical address Address: UNR M.S. 178 City: Reno State_or_Province: Nevada Postal_Code: 89557-0088 Country: USA Contact_Voice_Telephone: 775-784-6691 Ext. 2 Contact_Facsimile_Telephone: 775-784-1709 Contact_Electronic_Mail_Address: cstock@unr.edu Hours_of_Service: 7:30 AM - 3:00 PM PST Resource_Description: Digital coverage in shape file format, UTM zone 11 - NAD 27 projection, showing areas with potential mineral resources in Nevada. Distribution_Liability: Requestor hereby releases the Nevada Bureau of Mines and Geology, University of Nevada, Reno, their agents, consultants, contractors or employees from any and all claims, actions, or causes of action for damages including, but not limited to any costs of recovering, reprogramming or reproducing any programs or data stored in or used with this data, damage to property, damages for personal injury or for any lost profits, lost savings, or other special, incidental or consequential damages arising out of the use of or inability to use this data, even if said parties have been advised of the possibility of such damage. Requestor agrees to indemnify and hold harmless the Nevada Bureau of Mines and Geology, University of Nevada, Reno, their agents, consultants, contractors and employees from any and all liability claims or damages to any person arising from or connected with the use of this data. Top

METADATA_REFERENCE_INFORMATION

Metadata_Date: 2005 Metadata_Review_Date: 2005 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Nevada Bureau of Mines and Geology Contact_Person: Ronald H. Hess Contact_Position: GIS Specialist Contact_Address: Address_Type: Mailing and physical address Address: UNR M.S. 178 City: Reno State_or_Province: Nevada Postal_Code: 89557-0088 Country: USA Contact_Voice_Telephone: 775-784-6691 Ext. 121 Contact_Facsimile_Telephone: 775-784-1709 Contact_Electronic_Mail_Address: rhess@unr.edu Hours_of_Service: 7:30 AM - 3:00 PM PST Metadata_Standard_Name: FGDC CSDGM Metadata_Standard_Version: FGDC-STD-001-1998 Top