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Slope-stability analysis and creep susceptibility of Quaternary sediments on the northeastern United States continental slope Slope-stability analysis and creep susceptibility of Quaternary sediments on the northeastern United States continental slope

The continental slope off the northeastern United States is a relatively steep, morphologically complex surface which shows abundant evidence of submarine slides and related processes. Because this area may be developed by the petroleum industry, questions arise concerning the potential for further slope failures or unacceptable deformations and the conditions necessary to cause such...
Authors
James S. Booth, Armand J. Silva, Stephen A. Jordan

Geomagnetic paleointensities from excursion sequences in lavas on Oahu, Hawaii Geomagnetic paleointensities from excursion sequences in lavas on Oahu, Hawaii

Paleomagnetic data demonstrating three late Tertiary excursions in the direction of the geomagnetic field recorded in sequences of basaltic lavas on the island of Oahu, Hawaii were published by R. R. Doell and G. B. Dalrymple in 1973. We have determined geomagnetic paleointensities by the Thelliers' method for 14 lavas from the three sites. During these experiments, considerable...
Authors
Robert S. Coe, Sherman Gromme, Edward A. Mankinen

Magnetic properties of the Bay of Islands ophiolite suite and implications for the magnetization of oceanic crust Magnetic properties of the Bay of Islands ophiolite suite and implications for the magnetization of oceanic crust

Rock magnetic properties, opaque mineralogy, and degree of metamorphism were determined for 101 unoriented samples from the North Arm and Blow-Me-Down massifs of the Bay of Islands ophiolite complex, Newfoundland. The weathered and metamorphosed extrusive basalt samples have a weak, secondary magnetization arising from oxidation and exsolution of ilmenite of unknown origin. The initial
Authors
B. Ann Swift, H. Paul Johnson

Alternative diagenetic models for cretaceous talus deposits, Deep Sea Drilling Project Site 536, Gulf of Mexico Alternative diagenetic models for cretaceous talus deposits, Deep Sea Drilling Project Site 536, Gulf of Mexico

Talus deposits recovered from Site 536 show evidence of aragonite dissolution, secondary porosity development, and calcite cementation. Although freshwater diagenesis could account for the petrographic features of the altered talus deposits, it does not uniquely account for isotopic or trace-element characteristics. Also, the hydrologic setting required for freshwater alteration is not...
Authors
Robert B. Halley, B. J. Pierson, Wolfgang Schlager

Data from the GEOS digital recorder Data from the GEOS digital recorder

No abstract available.
Authors
J. B. Fletcher, Roger D. Borcherdt, C. Mueller, E. Cranswick
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