Name: IE_GSI_Structural_Symbols_100K_IE26_ITM

Display Field: DESCRIPT

Type: Feature Layer

Geometry Type: esriGeometryPoint

Description: The structural symbols layer is used to describe the geology of an area through dip and strike information. Dip and strike describe the behaviour of the rock bedding plane. To describe a geometric plane two values are required; the angle from horizontal that it is dipping and the direction that it is dipping. Geologists describe the dip direction by the strike value; this is the azimuth perpendicular to the steepest dip of the plane.The measurements that this layer contains give information about the geometry of the rock units under the ground. These measurements are the only way to see if the rocks are folded and faulted and how. With this information we can also start to see why the rocks have the shapes that they do.To produce this dataset, the twenty one 1:100,000 paper maps covering Ireland were digitised. We collect new data to update our map and also use data made available from other sources. This map is to the scale 1:100,000. This means it should be viewed at that scale. When printed at that scale 1cm on the map relates to a distance of 1km.It is a vector dataset. Vector data portray the world using points, lines, and polygons (areas).The structural symbols data is shown as points. Each point holds information on: the dip angle and direction, the strike angle and a description.

Service Item Id: 63c6981e7a6349d986f3729fead93899

Copyright Text: Geological Survey Ireland

Default Visibility: true

MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 101000

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: true

Can Modify Layer: true

Can Scale Symbols: true

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

XMin: 420610.4086
YMin: 520438.8935
XMax: 734421.4313
YMax: 955020.279200001
Spatial Reference: 2157  (2157)

Drawing Info:

Renderer:
Unique Value Renderer:
Field 1: DESCRIPT
Field 2: N/A
Field 3: N/A
Field Delimiter: ;
Default Symbol:
N/A
Default Label: N/A
UniqueValueInfos:
• Value: Dip of bedding or main foliation, old GSI data
  Label: Dip of bedding or main foliation, old GSI data
  Description: N/A
  Symbol:
  
• Value: First foliation parallel to bedding
  Label: First foliation parallel to bedding
  Description: N/A
  Symbol:
  
• Value: Foliation trend, Thorr and Rosses Granites
  Label: Foliation trend, Thorr and Rosses Granites
  Description: N/A
  Symbol:
  
• Value: Horizontal Bedding
  Label: Horizontal Bedding
  Description: N/A
  Symbol:
  
• Value: Strike and dip of bedding, right way up
  Label: Strike and dip of bedding, right way up
  Description: N/A
  Symbol:
  
• Value: Strike and dip of bedding, way up unknown
  Label: Strike and dip of bedding, way up unknown
  Description: N/A
  Symbol:
  
• Value: Strike and dip of first foliation
  Label: Strike and dip of first foliation
  Description: N/A
  Symbol:
  
• Value: Strike and dip of overturned bedding
  Label: Strike and dip of overturned bedding
  Description: N/A
  Symbol:
  
• Value: Strike and dip of second foliation
  Label: Strike and dip of second foliation
  Description: N/A
  Symbol:
  
• Value: Strike and dip of third foliation
  Label: Strike and dip of third foliation
  Description: N/A
  Symbol:
  
• Value: Strike and plunge of first generation fold axis
  Label: Strike and plunge of first generation fold axis
  Description: N/A
  Symbol:
  
• Value: Strike and plunge of second generation fold axis
  Label: Strike and plunge of second generation fold axis
  Description: N/A
  Symbol:
  
• Value: Strike and plunge of third generation fold axis
  Label: Strike and plunge of third generation fold axis
  Description: N/A
  Symbol:
  
• Value: Strike of vertical bedding/foliation
  Label: Strike of vertical bedding/foliation
  Description: N/A
  Symbol:
  
• Value: Strike of vertical first foliation
  Label: Strike of vertical first foliation
  Description: N/A
  Symbol:
  
Transparency: 0
Labeling Info:
Label Placement: esriServerPointLabelPlacementAboveRight
Label Expression: [DIP]
Use Coded Values: true
Symbol:
Color: [0, 0, 0, 255]
Background Color: N/A
Outline Color: N/A
Vertical Alignment: bottom
Horizontal Alignment: center
Right to Left: false
Angle: 0
XOffset: 0
YOffset: 0
Size: 8
Font Family: Arial
Font Style: normal
Font Weight: normal
Font Decoration: none

Min. Scale: 0.0
Max. Scale: 0.0

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: true
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false

HasZ: true

HasM: true

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• SHAPE ( type: esriFieldTypeGeometry, alias: Shape )
• DESCRIPT ( type: esriFieldTypeString, alias: Description, length: 254 )
• STRIKE ( type: esriFieldTypeDouble, alias: Strike )
• DIP ( type: esriFieldTypeString, alias: Dip, length: 254 )
• OBJECTID_1 ( type: esriFieldTypeOID, alias: OBJECTID_1 )

Supported Operations:   Query   Query Attachments   Generate Renderer   Return Updates

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