View In:   ArcGIS Online Map Viewer

Name: mapunitpolys_precamb

Display Field: name

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: The USGS National Cooperative Geologic Mapping Program (NCGMP) was directed by Congress to "bring together detailed national and continental-resolution 2D and 3D information produced throughout the Survey and by federal and state partners" (House Report 116-100), to create a new geologic map of the United States. To fulfill this goal, the NCGMP created a map synthesis engine (Johnstone and others, 2025) based on the Geologic Map Schema (GeMS) standard and used it to bring together and (to some extent) to harmonize source geologic maps originally published by the USGS and by State Geological Surveys. Currently, this map covers the conterminous U.S.; however, work is underway to expand the coverage.The Precambrian geology layer depicts all Precambrian rocks including map units with minimum ages that are younger, such as "Paleozoic to Precambrian" units. The map was composited from all geologic maps that show Precambrian rocks, including where they are mostly buried beneath Phanerozoic sedimentary rocks and inferred from boreholes and geophysical data. In areas covered by maps of both Precambrian outcrops and buried Precambrian basement, the outcropping Precambrian units are preserved instead of the more generalized buried units. Due to the large disparity in scale and degree of interpretation between outcrop maps and subsurface maps, the Precambrian layer is highly discontinuous along source map boundaries. Phanerozoic rocks are included in the map, subdivided into stratified rocks vs. igneous and metamorphic rocks.This layer is one of four created for the new national geologic map. The other layers available are: Earth’s surface (the geology exposed at the Earth’s surface) Quaternary (geologic units of Quaternary age, exposed at the Earth’s surface) Pre-Quaternary (geologic units older than Quaternary, including many "bedrock" geologic maps).Each layer is published by the USGS as GeMS-compliant Esri geodatabases. Those geodatabases are products of the overall geospatial database, which is published as a geopackage. These products and static images of the layers are available from the National Geologic Map Database, at https://ngmdb.usgs.gov/Prodesc/proddesc_118545.htm. For a more performant viewing and data exploration experience for the four layers, please visit the web application at ngmdb.usgs.gov/nationalgeology.

Service Item Id: a74ae42ce32448a78ca44e5b37b865c7

Copyright Text:

Default Visibility: true

MaxRecordCount: 2000

MaxSelectionCount: 0

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0.0

Max Scale: 0.0

Supports Advanced Queries: true

Supports Statistics: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports ValidateSQL: true

Supports Calculate: true

Extent:

XMin: -1.39573759476E7
YMin: 2801775.389199998
XMax: -7445653.492900001
YMax: 6340354.4782000035
Spatial Reference: 102100  (3857)  LatestVCSWkid(0)

Drawing Info:

Renderer:
Simple Renderer:
Symbol:
Style: esriSFSSolid
Color: [228, 227, 207, 255]
Outline:
N/A
Label: N/A
Description: N/A
Transparency: 0
Labeling Info:

Feature Draw Order:

N/A

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: false
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: true
Supports Returning Geometry Centroid: true
Supports Binning LOD: true
Supports Query With LOD Spatial Reference: true
Supports Percentile Statistics: true
Supports Having Clause: true
Supports Count Distinct: true
Supports Time Relation: false
Supports Sql Format: false
Supports Query Analytic: true
Supports Query With Current User: true

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field:

Fields:

• objectid ( nullable: false, defaultValue: null, editable: false, length: 4, type: esriFieldTypeOID, modelName: objectid, alias: OBJECTID )
• f_mapunitpolys_id ( modelName: f_mapunitpolys_id, nullable: true, editable: true, defaultValue: null, alias: _mapunitpolys_id, type: esriFieldTypeInteger )
• mapunit ( modelName: mapunit, nullable: true, editable: true, defaultValue: null, length: 60000, alias: mapunit, type: esriFieldTypeString )
• name ( modelName: name, nullable: true, editable: true, defaultValue: null, length: 60000, alias: name, type: esriFieldTypeString )
• source_fgdc_symbol ( modelName: source_fgdc_symbol, nullable: true, editable: true, defaultValue: null, length: 60000, alias: source_fgdc_symbol, type: esriFieldTypeString )
• description ( modelName: description, nullable: true, editable: true, defaultValue: null, length: 60000, alias: description, type: esriFieldTypeString )
• geomaterial ( modelName: geomaterial, nullable: true, editable: true, defaultValue: null, length: 60000, alias: geomaterial, type: esriFieldTypeString )
• geomaterialconfidence ( modelName: geomaterialconfidence, nullable: true, editable: true, defaultValue: null, length: 60000, alias: geomaterialconfidence, type: esriFieldTypeString )
• age ( modelName: age, nullable: true, editable: true, defaultValue: null, length: 60000, alias: age, type: esriFieldTypeString )
• synthesis_mapunit ( modelName: synthesis_mapunit, nullable: true, editable: true, defaultValue: null, length: 60000, alias: synthesis_mapunit, type: esriFieldTypeString )
• synthesis_mapunitname ( modelName: synthesis_mapunitname, nullable: true, editable: true, defaultValue: null, length: 60000, alias: synthesis_mapunitname, type: esriFieldTypeString )
• synthesis_fgdc_symbol ( modelName: synthesis_fgdc_symbol, nullable: true, editable: true, defaultValue: null, length: 60000, alias: synthesis_fgdc_symbol, type: esriFieldTypeString )
• synthesis_description ( modelName: synthesis_description, nullable: true, editable: true, defaultValue: null, length: 60000, alias: synthesis_description, type: esriFieldTypeString )
• map_citation ( modelName: map_citation, nullable: true, editable: true, defaultValue: null, length: 60000, alias: map_citation, type: esriFieldTypeString )
• ngmdb_url ( modelName: ngmdb_url, nullable: true, editable: true, defaultValue: null, length: 60000, alias: ngmdb_url, type: esriFieldTypeString )
• synthesis_citation ( modelName: synthesis_citation, nullable: true, editable: true, defaultValue: null, length: 60000, alias: synthesis_citation, type: esriFieldTypeString )
• synthesis_url ( modelName: synthesis_url, nullable: true, editable: true, defaultValue: null, length: 60000, alias: synthesis_url, type: esriFieldTypeString )
• f_synthesissources_id ( modelName: f_synthesissources_id, nullable: true, editable: true, defaultValue: null, alias: _synthesissources_id, type: esriFieldTypeInteger )
• min_age ( modelName: min_age, nullable: true, editable: true, defaultValue: null, length: 60000, alias: min_age, type: esriFieldTypeString )
• max_age ( modelName: max_age, nullable: true, editable: true, defaultValue: null, length: 60000, alias: max_age, type: esriFieldTypeString )
• f_rgba_min_age ( modelName: f_rgba_min_age, nullable: true, editable: true, defaultValue: null, length: 60000, alias: _rgba_min_age, type: esriFieldTypeString )
• f_rgba_max_age ( modelName: f_rgba_max_age, nullable: true, editable: true, defaultValue: null, length: 60000, alias: _rgba_max_age, type: esriFieldTypeString )
• f_rgba_geomaterial ( modelName: f_rgba_geomaterial, nullable: true, editable: true, defaultValue: null, length: 60000, alias: _rgba_geomaterial, type: esriFieldTypeString )
• f_rgba_synthesis ( modelName: f_rgba_synthesis, nullable: true, editable: true, defaultValue: null, length: 60000, alias: _rgba_synthesis, type: esriFieldTypeString )
• f_rgba_source ( modelName: f_rgba_source, nullable: true, editable: true, defaultValue: null, length: 60000, alias: _rgba_source, type: esriFieldTypeString )
• geomaterial_sym ( modelName: geomaterial_sym, nullable: true, editable: true, defaultValue: null, alias: geomaterial_sym, type: esriFieldTypeSmallInteger )
• max_age_sym ( modelName: max_age_sym, nullable: true, editable: true, defaultValue: null, alias: max_age_sym, type: esriFieldTypeSmallInteger )
• min_age_sym ( modelName: min_age_sym, nullable: true, editable: true, defaultValue: null, alias: min_age_sym, type: esriFieldTypeSmallInteger )
• source_sym ( modelName: source_sym, nullable: true, editable: true, defaultValue: null, alias: source_sym, type: esriFieldTypeSmallInteger )
• name_sym ( modelName: name_sym, nullable: true, editable: true, defaultValue: null, alias: name_sym, type: esriFieldTypeSmallInteger )
• synthesis_mapunitname_sym ( modelName: synthesis_mapunitname_sym, nullable: true, editable: true, defaultValue: null, alias: synthesis_mapunitname_sym, type: esriFieldTypeSmallInteger )
• SHAPE__Length ( virtual: true, nullable: true, editable: false, defaultValue: null, alias: SHAPE__Length, type: esriFieldTypeDouble )
• SHAPE__Area ( virtual: true, nullable: true, editable: false, defaultValue: null, alias: SHAPE__Area, type: esriFieldTypeDouble )

Templates:

• Name: mapunitpolys_precamb
  Description:
  Prototype:
  geomaterial_sym: null
  geomaterial: null
  synthesis_mapunit: null
  synthesis_citation: null
  f_synthesissources_id: null
  description: null
  f_mapunitpolys_id: null
  synthesis_description: null
  mapunit: null
  synthesis_url: null
  f_rgba_max_age: null
  geomaterialconfidence: null
  synthesis_mapunitname: null
  source_fgdc_symbol: null
  f_rgba_source: null
  synthesis_fgdc_symbol: null
  source_sym: null
  f_rgba_min_age: null
  f_rgba_synthesis: null
  min_age_sym: null
  name_sym: null
  max_age: null
  synthesis_mapunitname_sym: null
  name: null
  map_citation: null
  f_rgba_geomaterial: null
  ngmdb_url: null
  min_age: null
  age: null
  max_age_sym: null
  
  Drawing Tool: esriFeatureEditToolPolygon

Capabilities: Query

Sync Can Return Changes: true

Is Data Versioned: false

Supports Rollback On Failure: true

Supports ApplyEdits With Global Ids: false

Supports ApplyEdits By Upload Id: true

Supports Query With Historic Moment: false

Supports Coordinates Quantization: true

Child Resources:

Supported Operations:   Query   Query Attachments   Query Analytic   Query Top Features   Query Bins   Append   Validate SQL   Generate Renderer   Return Updates   Metadata   Update Metadata