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Publication Extents

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Occurrence of manganese in eastern Aroostook County, Maine
Walter S. White
1943, Bulletin 940-E
Manganiferous rocks are found in two areas in eastern Aroostook County, Maine, one west and northwest of Presque Isle and the other south of Houlton. The manganiferous deposits are sedimentary lenses, up to 150 feet thick and half a mile long, in middle Silurian argilllte. The rocks of both areas...
Geology of the Cimarron Range, New Mexico
J.F. Smith Jr. , L.L. Ray
1943, Geological Society of America Bulletin (54) 891-924
In north-central New Mexico the rugged Cimarron Range marks the eastern margin of the Southern Rocky Mountains, abruptly rising more than 5000 feet above the adjacent Great Plains. Structurally the range is a northward-plunging anticline with a core of pre-Cambrian crystalline rocks. Faulting along the eastern and western margins of...