Английская Википедия:Bear River dikes
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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
Шаблон:Yukon-geo-stub
Шаблон:Canada-geology-stub