Geologic map of the Stephens City quadrangle, Clarke, Frederick, and Warren Counties, Virginia

Metadata also available as

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: David J. Weary
Originator: Randall C. Orndorff
Originator: Wilma Aleman-Gonzalez
Publication_Date: 2006
Title:
Geologic map of the Stephens City quadrangle, Clarke, Frederick, and Warren Counties, Virginia
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: U.S. Geological Survey Open File Report
Publication_Information:
Publication_Place: Reston, VA, USA
Publisher: U.S. Geological Survey
Online_Linkage: <http://pubs.usgs.gov/of/2006/1173/>
Description:
Abstract:
Preliminary bedrock geologic map of the Stepens City 7.5 minute quadrangle, Clarke, Frederick, and Warren, Counties, VA, USA.
Purpose:
This map was produced to provide basic geologic information for land-use planning and ground-water aquifer studies. This data will be incorporated into a 3-dimesional model of the hydrogeologic framework of the lower Shenandoah Valley.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2006
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: Unknown
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -78.258043
East_Bounding_Coordinate: -78.116329
North_Bounding_Coordinate: 39.252817
South_Bounding_Coordinate: 38.999862
Keywords:
Theme:
Theme_Keyword_Thesaurus:
REQUIRED: Reference to a formally registered thesaurus or a similar authoritative source of theme keywords.
Theme_Keyword: Geology
Theme_Keyword: ground water
Theme_Keyword: faults
Theme_Keyword: folds
Theme_Keyword: joints
Theme_Keyword: cleavage
Place:
Place_Keyword: Frederick County
Place_Keyword: Clarke County
Place_Keyword: Warren County
Place_Keyword: Virginia
Place_Keyword: USA
Place_Keyword: Shenandoah Valley
Stratum:
Stratum_Keyword: Paleozoic
Stratum_Keyword: Cambrian
Stratum_Keyword: Ordovician
Access_Constraints: None
Use_Constraints:
None if properly cited. Although all data and software released on this CD-ROM have been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and related materials and (or) the functioning of the software. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: David J. Weary
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing address
Address: MS 926A 12201 Sunrise Valley Drive
City: Reston
State_or_Province: VA
Postal_Code: 20192
Country: USA
Contact_Voice_Telephone: 703-648-6897
Contact_Facsimile_Telephone: 703-648-6953
Contact_Electronic_Mail_Address: dweary@usgs.gov
Hours_of_Service: 8:00 AM - 3:30 PM ET
Contact_Instructions: email preferred.
Security_Information:
Security_Classification: Unclassified
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
All polygon atrtributes were checked for correct values against original field data by the geologists.
Logical_Consistency_Report:
These data are believed to be logically consistent, though no rigorous formal test were performed. Polygon coverages were queried to screen for empty or inconsistent values. Line geometry is topologically clean.
Completeness_Report: The data are complete at a resolution of 1:24,000
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
These data were collected with the aid a Trimble GeoXm GPS reciever with a accuracy rating of within 3 meters.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
These data were plotted on a USGS 7.5 minute topographic map at 1:24,000 scale. Therefore, the mapped vertical accuracy is assumed to approach National Map Accuracy Standards, with a horizontal accuracy of 11.9 feet at the 95% confidence level.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 1986
Title: Stephens City quadrangle
Source_Scale_Denominator: 24,000
Type_of_Source_Media: U.S. Geological Survey topographic map
Process_Step:
Process_Description:
A digital geographic base layer was created by georegistering then rectifying a .tiff image of the USGS 7.5 minute quadrangle. RMS error was required to be less than 3 meters (10 ft) in ground units. Geologic data was captured in the field as point locations via a Trimble GeoXM GPS-enabled handheld computer running ArcPad GIS software. The shape files were converted to ArcGIS geodatabases and edited over the basemap in ArcMap 9.0. Test plots were generated and provided to the authors for comparison to the original data and corrections made to all errors identified. The feature classes were then exported back to shapefiles for distribution.
Process_Step:
Process_Description: Metadata imported.
Source_Used_Citation_Abbreviation: C:\DOCUME~1\DAVEWE~1\LOCALS~1\Temp\xml2F1.tmp

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 44

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Transverse Mercator
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -81.000000
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: 0.000032
Ordinate_Resolution: 0.000032
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Datum_Name: NGVD 1929
Altitude_Resolution: 0.000010
Altitude_Distance_Units: feet
Altitude_Encoding_Method:
Explicit elevation coordinate included with horizontal coordinates

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: sc_linstrux
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
Attribute:
Attribute_Label: Shape_Length
Attribute_Definition: Length of feature in internal units.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Positive real numbers that are automatically generated.
Attribute:
Attribute_Label: FNODE_
Attribute:
Attribute_Label: TNODE_
Attribute:
Attribute_Label: LPOLY_
Attribute:
Attribute_Label: RPOLY_
Attribute:
Attribute_Label: LENGTH
Attribute:
Attribute_Label: WIN_LINSTRUX_
Attribute:
Attribute_Label: WIN_LINSTRUX_ID
Attribute:
Attribute_Label: STRUX_TYPE
Attribute_Definition: Type of fold
Attribute:
Attribute_Label: STRUX_NM
Attribute_Definition: name of fold
Overview_Description:
Entity_and_Attribute_Overview: Linnear structures (folds) in the Stephens City quadrangle.

Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: David J. Weary
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing address
Address: MS 926A 12201 Sunrise Valley Drive
City: Reston
State_or_Province: VA
Postal_Code: 20192
Country: USA
Contact_Voice_Telephone: 703-648-6897
Contact_Facsimile_Telephone: 703-648-6953
Contact_Electronic_Mail_Address: dweary@usgs.gov
Hours_of_Service: 8:00 AM - 3:30 PM ET
Contact_Instructions: email preferred.
Resource_Description: Downloadable Data
Distribution_Liability:
Although all data and software released on this CD-ROM have been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and related materials and (or) the functioning of the
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <http://pubs.usgs.gov/of/2006/1173/>
Offline_Option:
Offline_Media: CD ROM
Ordering_Instructions:
These data are availble at no charge over the internet at: <http://pubs.usgs.gov/of/2006/1173/>. CD versions may be requested at dweary@usgs.gov.
Custom_Order_Process: email dweary@usgs.gov for information.
Technical_Prerequisites:
The graphic file for the full map plate requires Adobe Acrobat Reader 5.0 or above. Use of the GIS data files requires a GIS software capable of viewing shapefiles, geodatabases, or importing .e00 Arc export files propduced by ESRI ArcMap V. 9.0.

Metadata_Reference_Information:
Metadata_Date: 20060605
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: David J. Weary
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing address
Address: MS 926A 12201 Sunrise Valley Drive
City: Reston
State_or_Province: VA
Postal_Code: 20192
Country: USA
Contact_Voice_Telephone: 703-648-6897
Contact_Facsimile_Telephone: 703-648-6953
Contact_Electronic_Mail_Address: dweary@usgs.gov
Hours_of_Service: 8:00 AM - 3:30 PM ET
Contact_Instructions: email preferred.
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Access_Constraints: none
Metadata_Use_Constraints: none
Metadata_Security_Information:
Metadata_Security_Classification: Unclassified
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile



Generated by mp version 2.8.6 on Mon Jun 05 15:12:19 2006