Great Basin Major Aquifers

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Originator: Zehner, R.
Publication_Date: 20050301
Title: Great Basin Major Aquifers
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: University of Nevada, Reno
Publisher: Nevada Bureau of Mines and Geology
Online_Linkage:
\\palido.unr.edu\geothermal\_projects\metadata_updates\04_Geochemical_Data\FTP_Zip_Files\04_Geochemical_Data\GreatBasin_Groundwater_Aquifers.shp
Description:
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.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date:
REQUIRED: The year (and optionally month, or month and day) for which the data set corresponds to the ground.
Currentness_Reference:
REQUIRED: The basis on which the time period of content information is determined.
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -122.917146
East_Bounding_Coordinate: -110.436694
North_Bounding_Coordinate: 44.031927
South_Bounding_Coordinate: 34.515859
Keywords:
Theme:
Theme_Keyword_Thesaurus:
REQUIRED: Reference to a formally registered thesaurus or a similar authoritative source of theme keywords.
Theme_Keyword: Aquifer
Theme_Keyword: Groundwater
Place:
Place_Keyword: USA
Place_Keyword: Western United States
Place_Keyword: Great Basin
Place_Keyword: Nevada
Place_Keyword: California
Place_Keyword: Utah
Place_Keyword: Idaho
Place_Keyword: Arizona
Place_Keyword: Oregon
Place_Keyword: Wyoming
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 file associated with the 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 specific author in products derived from this map. Do not reproduce for commercial purposes. This data is not surveyed data.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Nevada Bureau of Mines and Geology
Contact_Person: web/GIS/database person
Contact_Position: web/GIS/database
Contact_Address:
Address_Type: mailing and physical address
Address: University of Nevada, Reno MS178
City: Reno
State_or_Province: NV
Postal_Code: 89557-0178
Country: USA
Contact_Voice_Telephone: 775-784-6691
Contact_Electronic_Mail_Address: nbmg@unr.edu
Hours_of_Service: 8:00 a.m. - 3:00 p.m. (PST)
Contact_Instructions: web/GIS/database person
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.1850

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report: Unknown
Logical_Consistency_Report: Unknown
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: U.S. Geological Survey
Originator: Zehner, R.
Publication_Date: 20050301
Title: Great Basin Major Aquifers
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: University of Nevada, Reno
Publisher: Nevada Bureau of Mines and Geology
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.
Process_Step:
Process_Description: Metadata imported.
Source_Used_Citation_Abbreviation: C:\Users\glj\AppData\Local\Temp\xmlB8A9.tmp
Process_Date: 20120810
Process_Time: 09370000

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-polygon
Point_and_Vector_Object_Count: 790

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: 0.000000
Ordinate_Resolution: 0.000000
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1927
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6378206.400000
Denominator_of_Flattening_Ratio: 294.978698

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: gbaquifers
Attribute:
Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: OBJECTID_1
Attribute:
Attribute_Label: OBJECTID
Attribute:
Attribute_Label: ROCK_NAME
Attribute:
Attribute_Label: ROCK_TYPE
Attribute:
Attribute_Label: AQ_NAME
Attribute:
Attribute_Label: AQ_CODE
Attribute:
Attribute_Label: SHAPE_LENG
Attribute:
Attribute_Label: SHAPE_AREA
Attribute_Definition: Area of feature in internal units squared.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Positive real numbers that are automatically generated.
Attribute:
Attribute_Label: GBAQUIFERS
Attribute:
Attribute_Label: RECLASS
Attribute:
Attribute_Label: NEWNAME
Attribute:
Attribute_Label: ID
Attribute:
Attribute_Label: BUFFERDIS
Attribute:
Attribute_Label: Shape_Le_1
Attribute:
Attribute_Label: VALUE1
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)

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Nevada Bureau of Mines and Geology
Contact_Person: web/GIS/database person
Contact_Position: web/GIS/database
Contact_Address:
Address_Type: mailing and physical address
Address: University of Nevada, Reno MS178
City: Reno
State_or_Province: NV
Postal_Code: 89557-0178
Country: USA
Contact_Voice_Telephone: 775-784-6691
Contact_Electronic_Mail_Address: nbmg@unr.edu
Hours_of_Service: 8:00 a.m. - 3:00 p.m. (PST)
Contact_Instructions: web/GIS/database person
Resource_Description: Downloadable Data
Distribution_Liability:
Requestor hereby releases the Nevada Bureau of Mines and Geology, the University of Nevada, Reno, and their agents, consultants, contractors or employees from any and all claims, action, 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 the GIS 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 the GIS 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, the University of Nevada, Reno, and 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 GIS data.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
File_Decompression_Technique: Zip file
Transfer_Size: 5.295

Metadata_Reference_Information:
Metadata_Date: 20100712
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Nevada Bureau of Mines and Geology
Contact_Person: web/GIS/database person
Contact_Position: web/GIS/database
Contact_Address:
Address_Type: mailing and physical address
Address: University of Nevada, Reno, MS 178
City: Reno
State_or_Province: NV
Postal_Code: 89557-0178
Country: USA
Contact_Voice_Telephone: 775-784-6691
Contact_Electronic_Mail_Address: nbmg@unr.edu
Hours_of_Service: 8:00 a.m. - 3:00 p.m. (PST)
Contact_Instructions: web/GIS/database person
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile

Generated by mp version 2.9.14 on Mon Aug 13 15:15:44 2012