Type ESRI Shapefiles (SHP), ESRI File Geodatabase (GDB)
The purpose of this project is to produce a digital dataset containing data compiled by numerous sources for the bedrock geology of Cape Breton Island, and produce a series of 1:50 000 scale geological bedrock maps of Cape Breton Island.
This digital product is a compilation and integration by S.M. Barr and C.E. White of previous field work and detailed bedrock geological mapping initiatives over the last 25 years in Cape Breton Island. The data was used to create Nova Scotia Department of Natural Resources (NSNR&R) Open File Maps OFM ME 2017-007 to 2017-031, compiled by S.M. Barr and C. E. White, 2017. The digital product was created by the NSNR&R, Geoscience and Mines Branch (GMB) staff. The digital product contains layers for geological features such as: anticlines/synclines, coal seams, areas of concentrated drilling, drillholes, faults, bedrock geologic units, geological contacts, mineral occurrences, neatline, small outcrops, reference outlines, structural data, and terrane boundaries. In 2021, a revised edition of the digital product was released with updates made to bedrock geology, contacts, and faults in the Baddeck area. The updated data was used to replace OFM ME 2017-006 and OFM ME 2017-019 with OFM ME 2021-003 and OFM ME 2021-004 respectively.
Barr, S M, Acadia University; White, C E, Nova Scotia Department of Natural Resources; Fisher, B E, Nova Scotia Department of Natural Resources; McKinnon, J S, Nova Scotia Department of Natural Resources; Barras, A L, Nova Scotia Department of Natural Resources; Hapgood, D S, Nova Scotia Department of Natural Resources
Any constraints on the use of the data are contained in the above license agreement. The terms and conditions of the license accompany the downloaded digital product. A statement of some use constraints can be viewed in the technical prerequisites.
There is no extent for this item.
| Maximum (zoomed in) | 1:5,000 |
| Minimum (zoomed out) | 1:150,000,000 |
The following maps are derived from this digital product: OFM ME 2017-007 to OFM ME 2017-018, OFM ME 2017-020 to OFM ME 2017-031, OFM ME 2021-003, and OFM ME 2021-004.
9:00 a.m. to 5:00 p.m. AST Monday-Friday
Data Set ID = d433cb; Data Class = bgeo50; Project ID = CBI mapping project
Barr, S M, Acadia University; White, C E, Nova Scotia Department of Natural Resources; Fisher, B E, Nova Scotia Department of Natural Resources; McKinnon, J S, Nova Scotia Department of Natural Resources; Barras, A L, Nova Scotia Department of Natural Resources; Hapgood, D S, Nova Scotia Department of Natural Resources
publication date
9:00 a.m. to 5:00 p.m. AST Monday-Friday
9:00 a.m. to 5:00 p.m. AST Monday-Friday
This data is made available under the Nova Scotia Open Government Licence.
Use of this data indicates your acceptance to the terms contained in the Nova Scotia Open Government Licence.
This data is made available under the Nova Scotia Open Government Licence.
There may be positional accuracy errors in the digital data that come from the original data collection, plus there are errors added by the process of digitizing the features from the original published source maps or field maps. The transfer of this data from older base maps onto the current base maps may also produce some error. The user should be aware that using this data overlaid on topographic data that was not used during the digital capture of the data may result in apparent errors in the locations of the data that may or may not be real. The user should always try and use background topographic data that is the same as the source topographic data noted in this metadata. The entire risk as to the quality and accuracy of the data is with the user and the user shall use his/her own judgment in making use of the data or drawing conclusions from it.
In 2013, work began by GIS staff to compile and integrate previous field work and detailed bedrock geological mapping initiatives over the past 25 years on Cape Breton Island. The first stage of this work was to extract bedrock data from a number of FieldLog databases and AutoCAD drawing files and convert them into ESRI shapefile format. This work was completed by David Hapgood.
In late 2013, the 2nd stage of the CBI compilation project began. This involved: compiling and digitizing line work from previous mapping under the direction of Chris White (NSNR&R) and Sandra Barr (Acadia University), building bedrock geology polygons from the linework, and compiling a geologic legend for the entire Cape Breton Island. This work started with Angie Barras, and when she left for maternity leave David Hapgood was re-hired to complete this phase.
In the fall of 2015, point data for the Cape Breton compilation was merged into single geodatabase feature classes, QA/QC was performed on the outcrop data, and editing was done if needed. This work was completed by Jeff McKinnon.
Early 2016, Angie Barras returned from maternity leave and worked on the 3rd stage of this project with the completion of the series of 1:50 000 maps. This work was done in conjunction with Sandra Barr and Chris White, and involved: thinning out the almost 100,000 combined outcrops and structural data for cartographic purposes, moving labels and structural data to prevent data and annotation clustering, performing any remaining edits that were needed, and creation of the final edited bedrock legend. After the map series was finalized by Sandra Barr and Chris White, Rob Raeside (Acadia University) peer reviewed the series of maps.
In June 2017, NSNR&R-Geoscience and Mines Branch released 25 1:50 000 Open File Maps (OFM ME 2017-007 to OFM 2017-031) showing the bedrock geology of Cape Breton Island. Also released were: digital dataset containing all data compiled for the project (DP 433), 1:220 000 scale overview map (OFM 2017-006), an Open File Illustration containing the legend of the bedrock units used in the map series (OFI 2017-001), and an Open File Report listing the source information for the data used in the map series (OFR ME 2017-002).
In the Spring of 2021, revisions were made by Angie Barras from Chris White to the bedrock geology in the St. Anns area, southward to Baddeck Bay and Plaister Mines. OFM ME 2017-006 and 2017-019 were revised to reflect the changes, and released as OFM 2021-003 and 2021-004 respectively.
Topographic information, such as the coastline, were taken from the digital 1:50 000 NTS base maps and used to construct the geological polygons.
Base data is derived from the Nova Scotia Topographic Database (NSTDB), Copyright Province of Nova Scotia. All rights reserved. The NSTDB is available from Service Nova Scotia & Municipal Relations, Nova Scotia Geomatics Center, 160 Willow St., Amherst, N.S.
ground condition
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publication date
Some of the coal seams used in the digital product were taken from this unpublished digital database created by E.W. Hennick and J.H. Calder. Updates and additional seams may have been added to this version of the coal database.
Unpublished material
ground condition
Some of the drillholes used in the digital product were taken from this digital database. Updates and additional holes may have been added to this version of the drillhole database
publication date
Some of the mineral occurrences used in the digital product were taken from this digital database. Updates or additions may have been made to this version of the database.
publication date
9:00 a.m. to 5:00 p.m. AST Monday-Friday
The data set can be downloaded over the Internet
ESRI file geodatabase feature class lines - coal seams
ESRI file geodatabase feature class polygons - areas of concentrated drilling
ESRI file geodatabase feature class points - drillholes
ESRI file geodatabase feature class lines - faults
ESRI file geodatabase feature class polygons - bedrock geologic units
ESRI file geodatabase feature class lines - geological contacts
ESRI file geodatabase feature class points - mineral occurrences
ESRI file geodatabase feature class polygons - neatline
ESRI file geodatabase feature class points - small outcrops
ESRI file geodatabase feature class polygons - reference outlines
ESRI file geodatabase feature class lines - anticlines/synclines
ESRI file geodatabase feature class points - structural data
ESRI file geodatabase feature class lines - terrane boundaries
The dataset contains a number of point, line and polygon feature classes stored in an ESRI file geodatabse. The shapefile (SHP) downloadable product contains the equivalent files.
9:00 a.m. to 5:00 p.m. AST Monday - Friday