Abstract

Hudson Bay Mountain is largely a complex of Jurassic volcanic rocks. It probably has a granitic core of Tertiary age and it is partially covered and was formerly probably entirely covered by a dome of Lower Cretaceous sediments. Mineral deposits related to the granitic core occur for the most part in radial and other fractures in a shallow zone directly under the remnants of the Lower Cretaceous and in nearby areas where this formation has only recently been removed by erosion.

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