A tectonically disturbed sequence of Mississippian-age evaporites located between Sussex and Saint John in southeastern New Brunswick, Canada, has been investigated by geologic, geophysical, and drilling programs. Eighteen of twenty-two drill holes have penetrated 10 to 140 ft of sylvinite in an evaporite sequence underlying 2,000 to 3,000 ft of conformable red beds. Stratigraphic studies involving lithological characteristics, bromine, borate, and geophysical data have facilitated improved understanding of the structure of the salt deposit. The salt sequence has been affected by flowage, which is represented by major and minor folding. In the more structurally disturbed areas, the sylvinite interval has been extensively subterraneanly eroded at the upper anhydrite-salt contact.

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