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STRUCTURAL GEOLOGY, STRATIGRAPHY AND PETROLOGY OF THE ELKHORN RIDGE ARGILLITE, IN THE SUMPTER AREA, NORTHEASTERN OREGON
The Elkhorn Ridge Argillite exposed in the Bourne-Sumpter area of eastern Oregon is a broken formation of metamorphosed (greenschist facies) hemipelagic sediments, reefal carbonates, rare clastics, mafic volcanics and ...
THE GEOLOGY OF THE BREVARD ZONE AND ADJACENT TERRANES IN ALABAMA
Detailed and reconnaissance field and gravity studies indicate that the Brevard zone in Alabama consists of a lithologically-distinctive, multiply-deformed polymetamorphosed sequence of Cambrian(?)-age metasedimentary and ...