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Two Airborne Geophysical Surveys underway in the Slave Geological Province

In the search for Northwest Territories (NWT) mineral resources, explorers rely in part on regional-scale geological and geophysical information provided by the Northwest Territories Geological Survey (NTGS). This information is used to hunt for areas of higher mineral potential within the vast NWT landmass.

The NTGS has begun work on two contracted airborne geophysical surveys that will assist diamond exploration in an underexplored region of the Slave Geological Province, home to the NWT’s four diamond mines. The survey region lies between the Diavik and Gahcho Kué mines and includes the idle Snap Lake mine, currently on extended care and maintenance.

Work will focus on providing modern airborne magnetic data for the region and on determining how to better recognize the electromagnetic signature of bodies of kimberlite rock, the source of NWT diamonds. As nearly all Slave Province kimberlites are covered by glacial till or lakes, explorers rely heavily on geophysical methods to find them. The NTGS project will examine how to better explore for kimberlite bodies hosted by the various rock types that make up the Slave Province. Within some of these rock types, kimberlite bodies are commonly difficult to detect by geophysical methods.

Geophysical surveying will continue until the end of March 2017.