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Page 5583, results 139551 - 139575

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Publication Extents

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Probable rift origin of the Canada basin, Arctic Ocean
Irvin L. Tailleur
1973, Open-File Report 73-274
Formation of the Canada basin by post-Triassic rifting seems the most workable and logical hypothesis with information available. Speculated counterclockwise rotation of the Alaska-Chukchi continental edge best rationalizes the complex geology of northern Alaska, whereas a single continental block before the Jurassic makes the best palinspastic fit for Arctic America....
Glacial and postglacial geologic history of Isle Royale National Park, Michigan
N. King Huber
1973, Professional Paper 754-A
Isle Royale was overridden by glacial ice during each of the four major glaciations of the Pleistocene Epoch, and each successive glaciation essentially obliterated all direct evidence of preceding glaciations on the island. In the waning phase of the last major glaciation, the Wisconsin Glaciation, the frontal ice margin retreated...
Liquefaction potential of unconsolidated sediments in the southern San Francisco Bay Region, California
T. Leslie Youd, D.R. Nichols, E. J. Helley, K. R. Lajoie
1973, Open-File Report 73-368
A preliminary map of liquefaction potential of unconsolidated sediments has been made for the southern part of the San Francisco Bay region. Map zones are established on the basis of recent detailed geologic mapping. Liquefaction potential for each zone is estimated from an analysis of lithologic, water-table and standard penetration test data. Due to empirical...