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: -78.251267
- East_Bounding_Coordinate: -78.123297
- North_Bounding_Coordinate: 39.126634
- South_Bounding_Coordinate: 38.997935
- 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. A separate database
file for map_unit polygon attributes was generated and populated in
Microsoft Access 2000, exported as a .dbf file, converted in Arc/Info
to an Info file, then joined to each polygon feature class using
map_unit as the join item. 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\xml2E5.tmp
- 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: 25
- 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_alluvium
- Attribute:
-
- Attribute_Label: OBJECTID_1
- Attribute_Definition: Internal feature
number.
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
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- Unrepresentable_Domain:
- Sequential unique whole numbers that are
automatically generated.
- Attribute:
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- Attribute_Label: Shape
- Attribute_Definition: Feature geometry.
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
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- Unrepresentable_Domain: Coordinates
defining the features.
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- Attribute_Label: OBJECTID
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- Attribute_Label: AREA
- Attribute:
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- Attribute_Label: PERIMETER
- Attribute:
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- Attribute_Label: SC_QUAT_
- Attribute:
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- Attribute_Label: SC_QUAT_ID
- Attribute:
-
- Attribute_Label: MAP_UNIT
- Attribute_Definition: abbreviation of
bedrock unit name
- Attribute:
-
- Attribute_Label: map_unit
- Attribute_Definition: abbreviation of
bedrock unit name
- Attribute:
-
- Attribute_Label: Shape_Leng
- Attribute:
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- Attribute_Label: OID_
- Attribute:
-
- Attribute_Label: MAP_UNIT_1
- Attribute_Definition: abbreviation of
bedrock unit name
- Attribute:
-
- Attribute_Label: SURF_BED
- Attribute_Definition: surficial or bedrock?
- Attribute:
-
- Attribute_Label: SURFTYPE
- Attribute_Definition: surficial unit type
- Attribute:
-
- Attribute_Label: LITHPRI
- Attribute_Definition: primary lithology
- Attribute:
-
- Attribute_Label: LITHSEC
- Attribute_Definition: secondary lithology
- Attribute:
-
- Attribute_Label: LITHTER
- Attribute_Definition: tertiary lithology
- Attribute:
-
- Attribute_Label: FORM
- Attribute_Definition: formation name
- Attribute:
-
- Attribute_Label: MEMBER
- Attribute_Definition: member name
- Attribute:
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- Attribute_Label: GROUP_
- Attribute_Definition: group name
- Attribute:
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- Attribute_Label: SUPERGROUP
- Attribute_Definition: supergroup name
- Attribute:
-
- Attribute_Label: ROCKCLASS
- Attribute_Definition: rock classification
- Attribute:
-
- Attribute_Label: AGE
- Attribute_Definition: relative age
- Attribute:
-
- Attribute_Label: GEOCHR
- Attribute_Definition: absolute age geochron
- Attribute:
-
- Attribute_Label: GEOCHRTECH
- Attribute_Definition: technique used to
establish geochron
- Attribute:
-
- Attribute_Label: GEOCHRREF
- Attribute_Definition: reference for geochron
- Attribute:
-
- Attribute_Label: FOSSIL
- Attribute_Definition: fossils?
- Attribute:
-
- Attribute_Label: FOSSILTYPE
- Attribute_Definition: fossil type
- Attribute:
-
- Attribute_Label: FOSSILREF
- Attribute_Definition: fossil reference
- Attribute:
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- Attribute_Label: CORRELEXTR
- Attribute_Definition: correlations
- Attribute:
-
- Attribute_Label: ORIGIN
- Attribute_Definition: environment of origin
- Attribute:
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- Attribute_Label: RES
- Attribute_Definition: resources
- Attribute:
-
- Attribute_Label: RESREF
- Attribute_Definition: resources references
- Attribute:
-
- Attribute_Label: COLOR
- Attribute_Definition: color
- Attribute:
-
- Attribute_Label: MINPRI
- Attribute_Definition: primary mineralogy
- Attribute:
-
- Attribute_Label: MINSEC
- Attribute_Definition: secondary mineralogy
- Attribute:
-
- Attribute_Label: MINOTH
- Attribute_Definition: other minerals of note
- Attribute:
-
- Attribute_Label: CLASTPRI
- Attribute_Definition: primary clasts
- Attribute:
-
- Attribute_Label: CLASTSEC
- Attribute_Definition: secondary clasts
- Attribute:
-
- Attribute_Label: CEMENT
- Attribute_Definition: cement type
- Attribute:
-
- Attribute_Label: THICKAPPRX
- Attribute_Definition: approximate thickness
of unit
- Attribute:
-
- Attribute_Label: THICKRANGE
- Attribute_Definition: range of unit thickness
- Attribute:
-
- Attribute_Label: BEDTHIN
- Attribute_Definition: unit contains thin
beds?
- Attribute:
-
- Attribute_Label: BEDMEDIUM
- Attribute_Definition: unit contains medium
beds?
- Attribute:
-
- Attribute_Label: BEDTHICK
- Attribute_Definition: unit contains thick
beds?
- Attribute:
-
- Attribute_Label: CONTUP
- Attribute_Definition: nature of upper contact
- Attribute:
-
- Attribute_Label: CONTLOW
- Attribute_Definition: nature of lower contact
- Attribute:
-
- Attribute_Label: FOLPRI
- Attribute_Definition: primary foliation
- Attribute:
-
- Attribute_Label: FOLSEC
- Attribute_Definition: secondary foliation
- Attribute:
-
- Attribute_Label: FOLTER
- Attribute_Definition: tertiary foliation
- Attribute:
-
- Attribute_Label: CMPM
- Attribute_Definition: Contact metamorphic
minerals
- Attribute:
-
- Attribute_Label: RMPM
- Attribute_Definition: Regional metamorphic
minerals
- Attribute:
-
- Attribute_Label: RMRM
- Attribute_Definition: Retrograde regional
metamorphic minerals
- Attribute:
-
- Attribute_Label: DEFORMAGE
- Attribute_Definition: age of deformation
- Attribute:
-
- Attribute_Label: DEFORMTECH
- Attribute_Definition: how was deformed dated?
- Attribute:
-
- Attribute_Label: DEFORMREF
- Attribute_Definition: reference for age of
deformation
- Attribute:
-
- Attribute_Label: COMMENTS
- Attribute_Definition: miscellaneous comments
- 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: 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.
- Overview_Description:
-
- Entity_and_Attribute_Overview: Alluvium polygons
for 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:
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- Metadata_Date: 20060605
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- Contact_Person_Primary:
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- 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:
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- Metadata_Security_Classification: Unclassified
- Metadata_Extensions:
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- 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 14:08:26 2006