Name: Rock Class

Display Field: BE_MAP_UNIT

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: "Bedrock" is one of four layers which collectively describe the subsurface geologic formation, structural geology and surficial deposits. "Bedrock" is the subsurface expression of the geologic formations near the ground surface as mapped by outcrops and well borings. The geology of Loudoun County, Virginia, was mapped in 1988 through 1991 under a cooperative agreement between the U.S. Geological Survey (USGS) and the Loudoun County Department of Environmental Resources. This geologic map was compiled in 1993 from a series of detailed published and unpublished field investigations at scales of 1:12,000 and 1:24,000. Some of these same data were compiled as a digital geologic map at 1:100,000 scale (Burton and others, 1992a) and were the basis for a cost-benefit analysis of the societal value of geologic maps (Bernknopf and others, 1993). The data was later revised and published by USGS in the Open File Report, MAP OF-99-150, GEOLOGIC MAP OF LOUDOUN COUNTY, VIRGINIA By Scott Southworth, W.C. Burton, J.S. Schindler, and A.J. Froelich1 with contributions on the geology of the Piedmont province by A.A. Drake, Jr., and R.E. Weems and an aeromagnetic survey by D.L. Daniels, W.F. Hanna, and R.E. Bracken.

Copyright Text:

Default Visibility: true

MaxRecordCount: 3000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

XMin: 1.1635732341666669E7
YMin: 6992634.448333338
XMax: 1.1815635751666665E7
YMax: 7166506.495000005
Spatial Reference: 2924  (2924)

Drawing Info:

Renderer:
Unique Value Renderer:
Field 1: BE_ROCK_CLASS
Field 2: N/A
Field 3: N/A
Field Delimiter: ;
Default Symbol:
N/A
Default Label: N/A
UniqueValueInfos:
• Value: Igneous
  Label: Igneous
  Description: N/A
  Symbol:
  
• Value: Igneous extrusive
  Label: Igneous extrusive
  Description: N/A
  Symbol:
  
• Value: Igneous intrusive
  Label: Igneous intrusive
  Description: N/A
  Symbol:
  
• Value: Metasedimentary
  Label: Metasedimentary
  Description: N/A
  Symbol:
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• Value: Metasedimentary,volcanic
  Label: Metasedimentary,volcanic
  Description: N/A
  Symbol:
  
• Value: Metavolcaniclastic
  Label: Metavolcaniclastic
  Description: N/A
  Symbol:
  
• Value: Sedimentary
  Label: Sedimentary
  Description: N/A
  Symbol:
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  Color: [146, 220, 183, 255]
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  Style: esriSLSSolid
  Color: [0, 0, 0, 255]
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Transparency: 0
Labeling Info:

Advanced Query Capabilities:

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Supports Distinct: true
Supports Pagination: true
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Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false
Supports Binning LOD: false
Supports Query With LOD Spatial Reference: false

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• SHAPE ( type: esriFieldTypeGeometry, alias: SHAPE )
• BE_MAP_UNIT ( type: esriFieldTypeString, alias: BE_MAP_UNIT, length: 6 )
• BE_ID ( type: esriFieldTypeDouble, alias: BE_ID )
• BE_SUR_BED ( type: esriFieldTypeString, alias: BE_SUR_BED, length: 10 )
• BE_LITH_UNIT ( type: esriFieldTypeString, alias: BE_LITH_UNIT, length: 70 )
• BE_FORMA ( type: esriFieldTypeString, alias: BE_FORMA, length: 70 )
• BE_MEMBER ( type: esriFieldTypeString, alias: BE_MEMBER, length: 70 )
• BE_GROUP_ ( type: esriFieldTypeString, alias: BE_GROUP_, length: 70 )
• BE_DEP_ENV ( type: esriFieldTypeString, alias: BE_DEP_ENV, length: 70 )
• BE_ROCK_CLASS ( type: esriFieldTypeString, alias: BE_ROCK_CLASS, length: 70 )
• BE_CEMENT ( type: esriFieldTypeString, alias: BE_CEMENT, length: 70 )
• BE_DOM_FOLIA ( type: esriFieldTypeString, alias: BE_DOM_FOLIA, length: 70 )
• BE_OTHER_FOLI ( type: esriFieldTypeString, alias: BE_OTHER_FOLI, length: 70 )
• BE_METAM_GRAD ( type: esriFieldTypeString, alias: BE_METAM_GRAD, length: 70 )
• BE_REL_AGE ( type: esriFieldTypeString, alias: BE_REL_AGE, length: 70 )
• BE_MINERALS ( type: esriFieldTypeString, alias: BE_MINERALS, length: 70 )
• BE_GRAINSIZE ( type: esriFieldTypeString, alias: BE_GRAINSIZE, length: 70 )
• BE_GRAIN_COMP ( type: esriFieldTypeString, alias: BE_GRAIN_COMP, length: 70 )
• BE_FOSSILS ( type: esriFieldTypeString, alias: BE_FOSSILS, length: 70 )
• BE_COLOR ( type: esriFieldTypeString, alias: BE_COLOR, length: 50 )
• BE_REGOLITH ( type: esriFieldTypeString, alias: BE_REGOLITH, length: 70 )
• BE_OUTCROP ( type: esriFieldTypeString, alias: BE_OUTCROP, length: 100 )
• BE_UPD_SOURCE ( type: esriFieldTypeSmallInteger, alias: BE_UPD_SOURCE )
• BE_UPD_DATE ( type: esriFieldTypeDate, alias: BE_UPD_DATE, length: 8 )
• BE_UPD_USER ( type: esriFieldTypeSmallInteger, alias: BE_UPD_USER )
• BE_LITH_UNIT_ORIGINAL ( type: esriFieldTypeString, alias: BE_LITH_UNIT_ORIGINAL, length: 150 )
• SHAPE_Length ( type: esriFieldTypeDouble, alias: SHAPE_Length )
• SHAPE_Area ( type: esriFieldTypeDouble, alias: SHAPE_Area )

Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

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