Name: potomac_006_cont_sand

Display Field: source_organization

Type: Feature Layer

Geometry Type: esriGeometryPolyline

Description: Number of studies present cross sections that include geophysical logs (gamma ray, spontaneous potential, resistivity) that can be used to evaluate sand-body continuity within the lower Potomac aquifer (Hansen, 1968; Brown and others, 1972; Cushing and others, 1973; Trapp and others, 1984). These cross sections indicate that a number of thicker sands are continuous. Cushing and others (1973, their plate 2) generated a map showing the thickness distribution of a major sand unit in the Potomac aquifer. This map, which is digitized, demonstrates that the major sand bodies are continuous, and for this particular interval, are more than 50 ft thick across the entire Delmarva Peninsula.

Service Item Id: 034d402ecd1642b399b5a73e38a7f513

Copyright Text: Cushing, E. M., Kantrowitz, I. H., and Taylor, K. R., 1973, Water resources of the Delmarva Peninsula: U.S. Geological Survey, Professional Paper 822, 58 p

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MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

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Supports Advanced Queries: true

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Has Labels: false

Can Modify Layer: true

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Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

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Spatial Reference: 102100  (3857)

Drawing Info:

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Transparency: 0
Labeling Info:

Advanced Query Capabilities:

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Supports Sql Expression: true
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Supports Returning Geometry Centroid: false
Supports Binning LOD: false
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HasZ: false

HasM: false

Has Attachments: false

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Type ID Field: null

Fields:

• objectid ( type: esriFieldTypeOID, alias: OBJECTID )
• seg_id ( type: esriFieldTypeInteger, alias: SEG_ID )
• thickn_ft_ ( type: esriFieldTypeDouble, alias: THICKN_FT_ )
• thickn_m_ ( type: esriFieldTypeDouble, alias: THICKN_M_ )
• shape_leng ( type: esriFieldTypeDouble, alias: Shape_Leng )
• source_organization ( type: esriFieldTypeString, alias: Source Organization, length: 255 )
• hyperlink ( type: esriFieldTypeString, alias: Link, length: 255 )
• resource_date ( type: esriFieldTypeString, alias: Date of Resource, length: 255 )
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• st_length(shape) ( type: esriFieldTypeDouble, alias: st_length(shape) )

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

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