Bear River dikes

The Bear River dikes are a 1,265 to 1,269 million year old group of dikes in northern Yukon, Canada. They represent a feature related to magmatism of the extensive Mackenzie Large Igneous Province and are considered to be the western extension of the northwest–southeast trending Mackenzie dike swarm.[1]

References

Schwab, Danette L.; Thorkelson, Derek J.; Mortensen, James K.; Creaser, Robert A.; Abbott, J. Grant (2004-08-20). "The Bear River dykes (1265-1269 Ma): westward continuation of the Mackenzie dyke swarm into Yukon, Canada". Precambrian Research. ScienceDirect. 133 (3–4): 175. Bibcode:2004PreR..133..175S. doi:10.1016/j.precamres.2004.04.004.

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[1] Schwab, Danette L.; Thorkelson, Derek J.; Mortensen, James K.; Creaser, Robert A.; Abbott, J. Grant (2004-08-20). "The Bear River dykes (1265-1269 Ma): westward continuation of the Mackenzie dyke swarm into Yukon, Canada". Precambrian Research. ScienceDirect. 133 (3–4): 175. Bibcode:2004PreR..133..175S. doi:10.1016/j.precamres.2004.04.004.