Government of New Brunswick

Bedrock Geology

 Bedrock Geology and Bedrock Geology Relate Table  |  Outcrop Areas  |  Bedrock Geology Lines  |  Bedrock Geology Stations and Structural Data  |  2018 – Present  |  Legacy Data  |  Bedrock Geology Accessory Files

An understanding of bedrock geology is important for applications related to (but not limited to) mineral exploration and mining, land-use planning, hazard identification, agriculture, and forestry.

For more information, please contact:
    Jolane Sorge, New Brunswick Geological Survey
    [email protected]
    506-453-8881

 

  Bedrock Geology and Bedrock Geology Relate Table

Description

This layer contains polygon features that represent geological units in New Brunswick. The associated Bedrock Geology Relate Table contains details about each map unit, including: a brief legend description, Group name, Formation name, and rock age. This layer is the result of nearly 50 years of bedrock mapping and it continues to change as new interpretations are made and more data is collected through field work and analysis.
  

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  Outcrop Areas

Description

This layer contains polygon features that represent areas of numerous outcrop observations. These data are historical; in areas where numerous outcrop observations were recorded, rather than displaying crowded observation stations, a polygon was drawn around them. The polygons may represent areas of outcrop, or several separate outcrops in relatively close proximity. This layer can be used to supplement the legacy Station Type layer (LEGStationType).  

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  Bedrock Geology Lines

Description

This layer contains line features that represent linear bedrock features in New Brunswick and it is intended to be used in conjunction with the Bedrock Geology polygon features layer. The lines are the mapped surface expressions of geological features, such as faults, unconformities, and fold axes. This layer continues to change as new interpretations are made and more data is collected through field work and analysis.  

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  Bedrock Geology Stations and Structural Data

Description

This group of layers contains point features that represent locations where bedrock was observed and structural measurements were recorded. Structural measurements provide some indication of the geometry of bedrock units at depth. Each layer is specific to a type of observation or measurement:

Station Type (StationType) – records the location of an outcrop, subcrop, or boulder observation made by a geologist working in the field.

Primary Planar Measurements (PrimPlanarSym) – records the location, strike, and dip of primary planar structural features (e.g., bedding, dykes).

Secondary Planar Measurements (SecPlanarSym) – records the location, strike, and dip of secondary planar structural features (e.g., folds, faults, foliations, joints).

Linear Measurements (LinearSym) – records the location, trend, and plunge of linear structural features (e.g., fold axis, igneous lineations, paleocurrent lineations).

Miscellaneous Observations (MiscSym) – records the location of other geological features or observations (e.g., rock textures, gossans, sinkholes, springs).

Bedrock Samples (BedrockSamples) – records the locations where bedrock samples were collected and the reasons for collecting the sample (e.g., whole rock chemistry, thin section, assay).

These data are divided into two datasets: 2018 to Present data, and Legacy data.

2018 – Present

This dataset includes all of the layers listed above. It was compiled using a field data collection application loaded onto a GPS enabled tablet. The locations of the point data represent where an observation or measurement was made by a geologist. Additionally, each observation or measurement is linked to the StationType layer by the values in the Station_ID field.  
 

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Shapefile: Station Type | Primary Planar | Secondary Planar | Linear Measurement | Miscellaneous Measurements | Bedrock Samples

KML: Station Type | Primary Planar | Secondary Planar | Linear Measurement | Miscellaneous Measurements | Bedrock Samples

 

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Legacy Data

This dataset includes all of the layers listed above, except Bedrock Samples. These data are historical and were collected using a variety of methods. Additionally, because the positions of structural measurement symbols may have been moved for cartographic purposes, the locations of the structural measurements may not be accurate. It should be noted that structural measurements cannot be linked to their observation station, and the Outcrop Areas polygon layer can be used to supplement the legacy Station Type layer (LEGStationType). 
 

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Shapefile: Station Type | Primary Planar | Secondary Planar | Linear Measurement | Miscellaneous Measurements

KML: Station Type | Primary Planar | Secondary Planar | Linear Measurement | Miscellaneous Measurements

 

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  Bedrock Geology Accessory Files

Bedrock geology accessory files can be downloaded from https://www2.gnb.ca/content/dam/gnb/Departments/en/pdf/Minerals-Minerales/open-data/bedrock-fonts-styles.zip
 

Description

There are several files that can be used to help symbolize the features in the Bedrock Geology dataset.

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Bedrock Geology Polygon Colours

The New Brunswick Geological Survey has developed a colour scheme for the Bedrock Geology polygon features layer. The hue is based on a generalized lithotype (e.g., terrestrial clastic, marine clastic, volcanic [felsic, intermediate, mafic]). The saturation of the hue indicates the general age of the unit relative to the units around it. Saturated (vibrant) colours indicate units are older than units with less saturated (washed out) colours.

BedrockGeologyStyle2020.style – this file is compatible with Esri’s ArcMap application and can be used to symbolize point and line features (after the NBGeoSym_Final.ttf file is installed) as well as polygon features.

BedrockGeologyStyle2020.xlsx – this is an Excel file that contains the RGB values for the Bedrock Geology polygon colours.
 

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Font Files

NBGeoSym_Final.ttf – contains the fonts to symbolize point and line features

GSCGeology2015.ttf – contains the text fonts for geological time symbols

 

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