Great Basin Major Aquifers
Table of Contents
IDENTIFICATION_INFORMATION
Citation:
Citation_Information:
Originator: U.S. Geological Survey, modified by Richard Zehner
Publication_Date: 20050301
Title: Great Basin Major Aquifers
Edition:
Geospatial_Data_Presentation_Form: Map
Publication_Information:
Publication_Place: Reno, Nevada
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:
Abstract:
This shapefile is intended to show both the shallowest
pricipal aquifer and possible basement aquifers within the
Great Basin, generalized from the U.S.G.S. shapefile
"Principal Aquifers of the 48 Conterminous United States,
Hawaii, Puerto Rico, and the U.S. Virgin Islands".
Attributes include (1) the original USGS aquifer name, (2)
inferred basement aquifer rocks that might be expected at
the several
kilometers depth of geothermal resource drilling, and (3)
generalized shallow aquifer name. The abstract of the
original U.S.G.S. shapefile gives a good explanation of the
base data:
This data set contains the shallowest principal aquifers of
the conterminous
United States, Hawaii, Puerto Rico, and the U.S. Virgin
Islands,
portrayed as polygons. The data set was developed as part
of the effort to produce the maps published at 1:2,500,000
in the printed series "Ground Water Atlas of the United
States". The published maps contain base and cultural
features not included in these data. This is a replacement
for the July 1998 data set called Principal Aquifers of the
48 Conterminous United States.
Purpose:
For geothermal exploration, at scales of 1:2,500,000 or smaller.
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: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -5.9171
East_Bounding_Coordinate: 6.5633
North_Bounding_Coordinate: 43.8927
South_Bounding_Coordinate: 34.5159
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Aquifer
Theme_Keyword: Groundwater
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Arizona
Place_Keyword: California
Place_Keyword: Great Basin
Place_Keyword: Idaho
Place_Keyword: Nevada
Place_Keyword: North America
Place_Keyword: Oregon
Place_Keyword: Utah
Place_Keyword: Western United States
Place_Keyword: Wyoming
Access_Constraints:
Use_Constraints:
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: 775-327-5801
Contact_Electronic_Mail_Address: zehner@unr.edu
Hours_of_Service: M-F 8-5
Native_Data_Set_Environment:
ArcView version 3.3 shapefile format
c:\aquiferdata\gbaquifers.shp
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DATA_QUALITY_INFORMATION
Attribute_Accuracy:
Attribute_Accuracy_Report:
Logical_Consistency_Report:
Completeness_Report:
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator:
Publication_Date:
Title:
Edition:
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place:
Publisher:
Other_Citation_Details:
Online_Linkage:
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:
Source_Citation_Abbreviation:
Source_Contribution:
Source_Information:
Source_Citation:
Citation_Information:
Originator:
Publication_Date:
Title:
Edition:
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place:
Publisher:
Other_Citation_Details:
Online_Linkage:
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:
Source_Citation_Abbreviation:
Source_Contribution:
Process_Step:
Process_Description:
1. U.S.G.S. builds shapefile
2. Shapefile retrieved from
http: HTTP://www.nationalatlas.gov/index.html Shapefile is
projected into Lambert Conformable Conic
projection Shapefile is clipped to boundary of the Great
Basin
5. Throughgoing polygons of alluvial fill are terminated at
approximate contacts of deeper underlying bedrock aquifers.
Thus polygons of [potential] deep bedrock aquifers and
surface aquifers can be displayed.
6. Polygon attribute fields are created for [potentially]
deepbedrock aquifer
type. Simplified polygon attribute fields are created
showing generalized
surface bedrock and alluvial aquifer type.
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: 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: 775-327-5801
Contact_Electronic_Mail_Address: zehner@unr.edu
Hours_of_Service: M-F 8-5
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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: 790
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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: 0.000000
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: 0.000000
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
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ENTITY_AND_ATTRIBUTE_INFORMATION
Overview_Description:
Entity_and_Attribute_Overview:
Fields in the polygon attribute table are meant to display
(1) original USGS aquifer name, (2) potential inferred deep
bedrock aquifer, and (3) somewhat simplified surficial
aquifer (bedrock or alluvial)
Entity_and_Attribute_Detail_Citation:
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DISTRIBUTION_INFORMATION
Distributor:
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: 775-327-5801
Contact_Electronic_Mail_Address: zehner@unr.edu
Hours_of_Service: M-F 8-5
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.
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METADATA_REFERENCE_INFORMATION
Metadata_Date:
Metadata_Review_Date:
Metadata_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: 775-327-5801
Contact_Electronic_Mail_Address: zehner@unr.edu
Hours_of_Service: M-F 8-5
Metadata_Standard_Name: FGDC CSDGM
Metadata_Standard_Version: FGDC-STD-001-1998
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