Name: seep_anomaly_pockmarks

Display Field: Feature

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Oval depressions interpreted to be created by the removal of sediment through rapid, and possibly, explosive gas expulsion. Few pockmarks have visible active migration pathways on vertical seismic profiles, but most appear to be dormant and without discernible active migration. Rapid expulsion is interpreted to be exclusively gas and appear to be purely destructive due to the removal of sediment. No sediment, brine, or oil expulsion has been observed during direct observations. Due to a lack of hard substrate and absence of continuing seepage at most pockmarks, chemosynthetic organisms and corals are unlikely to be associated with them. The pockmarks on the Florida Shelf are actually sinkholes created by underlying karsted formations.

Copyright Text: William Shedd (william.shedd@boem.gov), Jon Burrell (jon.burrell@boem.gov), Pierre Abadie (pierre.abadie@boem.gov) & Kody Kramer, Bureau of Ocean Energy Management, Office of Resource Evaluation, New Orleans, LA. & NOAA.

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: -96.5528920690265
YMin: 25.6224920153399
XMax: -87.7709131604349
YMax: 29.1749389117786
Spatial Reference: 4267 (4267)

Drawing Info:

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Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: FID

Unique ID Field:

Name : FID

IsSystemMaintained : True

Global ID Field:

Type ID Field:

Fields:

• FID (type: esriFieldTypeOID, alias: FID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• Feature (type: esriFieldTypeString, alias: Feature, SQL Type: sqlTypeOther, length: 254, nullable: true, editable: true)
• Shape__Area (type: esriFieldTypeDouble, alias: Shape__Area, SQL Type: sqlTypeDouble, nullable: true, editable: false)
• Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)

Templates:

Name: seep_anomaly_pockmarks
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 12/17/2024 7:03:02 PM

Schema Last Edit Date: 12/17/2024 7:03:02 PM

Data Last Edit Date: 11/13/2024 6:20:39 PM

Supported Operations:   Query   Query Top Features   Query Analytic   Query Bins   Generate Renderer   Validate SQL   Get Estimates   ConvertFormat