Great Basin Major Aquifers

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

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