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Processing and Interpretation of SkyTEM Airborne Magnetic Survey Data in the Peace Region, Northeast BC

Lead Researcher(s):  S. Munro

Project ID:  2016-052

Key Research Organization(s):  Scott Hogg and Associates

Project Location:  Northeast BC

Strategic Focus Area:  Energy-Oil and Gas

Summary



This project applied new analysis to data generated for Geoscience BC’s Peace Project. It applied modelling and interpretation work to results of an aerial magnetic survey conducted in 2015 (Geoscience BC Report 2016-03) and to Geological Survey of Canada (GSC) data to understand the structure and depth of  the area’s crystalline basement.

View Peace Project

The Need

The Peace Project focussed on building a better understanding of shallow groundwater in the Peace region of northeastern BC through the interpretation of electromagnetic data. However, it is possible to interpret the magnetic component of that dataset to identify the basement rock layer and structure. Mapping of basement structure may be very helpful in understanding seismicity in the Peace region, including any induced seismic activity that may be caused by hydraulic fracturing.

Analyzing data in different ways can provide new understandings and knowledge. Following a helicopter magnetic and electromagnetic survey carried out by SkyTEM Surveys in the summer of 2015, Geoscience BC sought additional interpretation to understand the structure and depth of the area’s crystalline basement.

Project goals

This project used magnetic data from the Peace Project and other public magnetic data from the GSC to interpret crystalline basement with respect to structure, lineaments, faults, intrusions and lithology (i.e. magnetic susceptibility).

Project Benefits

This project adds value to existing datasets using the same data to look for different purposes.

Survey Area

Peace Region, northeastern BC. The Peace Project covered 9,600 square kilometres, an area roughly a quarter the size of Vancouver Island. The area included the northern part of the Montney play, an area of significant natural gas potential.

How was data collected?

Using airborne magnetic data  collected as part of the Peace Project airborne survey, as well as existing Geological Survey of Canada data, the report presents an interpretation of faults and the depth to basement.

What was found?

The project report presents and discusses an interpretation of faults and the depth to basement in the Peace Project area based on 3D inversion and magnetic models.

Deliverables