Publications
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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
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
Pedimentation versus debris-flow origin of plateau-side desert terraces in southern Utah Pedimentation versus debris-flow origin of plateau-side desert terraces in southern Utah
Plateau-side terraces in arid areas around the world are commonly described as pediment remnants, although, in many cases, they may have been formed by debris-flow deposition. Pediments do exist in the area of the Aquarius and Kaiparowits Plateaus of southern Utah; however, many alluvial terraces that were classified by previous workers as pediments are actually formed of thick deposits...
Authors
V. S. Williams
Landslides and related features, West Virginia; Virginia; Kentucky; Bluefield 1 degree x 2 degree sheet Landslides and related features, West Virginia; Virginia; Kentucky; Bluefield 1 degree x 2 degree sheet
No abstract available.
Authors
Roger E. Thomas, W.F. Outerbridge, W.E. Davies, J. S. Pomeroy, G. W. Leo
Preliminary landslide map of the Yucaipa 7.5' quadrangle, California Preliminary landslide map of the Yucaipa 7.5' quadrangle, California
No abstract available.
Authors
Jonathan C. Matti
Preliminary geologic map of the Colville Indian Reservation, Ferry and Okanogan Counties, Washington, with a table of potassium-argon ages Preliminary geologic map of the Colville Indian Reservation, Ferry and Okanogan Counties, Washington, with a table of potassium-argon ages
No abstract available.
Authors
Brian F. Atwater, Robert J. Fleck
Summary geologic report for petroleum lease sale #100, Kodiak Shelf, Alaska Summary geologic report for petroleum lease sale #100, Kodiak Shelf, Alaska
No abstract available.
Authors
M. A. Fisher, Roland E. von Huene, M. A. Hampton
Noise analysis of the seismic system employed in the northern and southern California seismic nets Noise analysis of the seismic system employed in the northern and southern California seismic nets
The seismic networks have been designed and operated to support recording on Develocorders (less than 40db dynamic range) and analog magnetic tape (about 50 db dynamic range). The principal analysis of the records has been based on Develocorder films; and background earth noise levels have been adjusted to be about 1 to 2 mm p-p on the film readers. Since the traces are separated by only...
Authors
J. P. Eaton
Minimum landslide damage in the United States, 1973-1983 Minimum landslide damage in the United States, 1973-1983
No abstract available.
Authors
E. E. Brabb
Debris-flow dynamics Debris-flow dynamics
No abstract available.
Authors
J. E. Costa, G. P. Williams
Proceedings of the 1980 workshop of the International Association of Seismology and Physics of the Earth's Interior on the seismic modeling of laterally varying structures: Contributions based on data from the 1978 Saudi Arabian refraction profile Proceedings of the 1980 workshop of the International Association of Seismology and Physics of the Earth's Interior on the seismic modeling of laterally varying structures: Contributions based on data from the 1978 Saudi Arabian refraction profile
No abstract available.
Authors
Walter D. Mooney, Claus Prodehl
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