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The mineral-resource potential of the Blackjack Springs Wilderness in northern Wisconsin was evaluated. The lack of bedrock exposures in or near the wilderness and the thick mantle of glacial sediments precludes a detailed assessment of the mineral potential of the wilderness. However, based on presently available data, the area is concluded to offer little promise for the occurrence of mineral resources. If mineral deposits exist in the area, they would be under thick glacial cover and probably be of the massive sulfide type in association with metavolcanic rocks or be magmatic copper-nickel in association with metamorphosed mafic intrusive rocks. Sand and gravel resources occur in the wilderness, but they are abundant regionally, outside the wilderness. No other metallic or energy resources were identified in this study.
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BLACKJACK SPRINGS WILDERNESS, WISCONSIN.
Geological Survey Professional Paper (United States)