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Page 5728, results 143176 - 143200

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Ancient processes at the site of southern San Francisco Bay, movement of the crust and changes in sea level
B.F. Atwater
T. J. Conomos, editor(s)
1979, Book chapter, San Francisco Bay : the urbanized estuary : investigations into the Natural History of San Francisco Bay and Delta with reference to the influence of man : fifty-eighth annual meeting of the Pacific Division/American Association for the Advancement of Science held at San Francisco State University, San Francisco, California, June 12-16, 1977
Abstract not available....
Multichannel seismic depth sections and interval velocities over outer continental shelf and upper continental slope between Cape Hatteras and Cape Cod: Rifted margins
John A. Grow, Robert E. Mattick, John S. Schlee
1979, Book chapter, Geological and geophysical investigations of continental margins
Six computer-generated seismic depth sections over the outer continental shelf and upper slope reveal that subhorizontal Lower Cretaceous reflectors continue 20 to 30 km seaward of the present shelf edge. Extensive erosion on the continental slope has occurred primarily during the Tertiary, causing major unconformities and retreat of the shelf...
Structure and development of the Southeast Georgia Embayment and northern Blake Plateau: Preliminary analysis
William P. Dillon, Charles K. Paull, Richard T. Buffler, Jean-Pierre Fail
1979, AAPG Memoir 29
Multichannel seismic reflection profiles from the Southeast Georgia Embayment and northern Blake Plateau show reflectors that have been correlated tentatively with horizons of known age. The top of the Cretaceous extends smoothly seaward beneath the continental shelf and Blake Plateau, unaffected at the present shelf edge. A reflector inferred to...
An instrument system for long-term sediment transport studies on the continental shelf
Bradford Butman, David W. Folger
1979, Journal of Geophysical Research: Oceans (84) 1215-1220
A bottom-mounted instrument system has been designed and built to monitor processes of bottom sediment movement on the continental shelf. The system measures bottom current speed and direction, pressure, temperature, and light transmission and photographs the bottom. The system can be deployed for periods of 2–6 months to monitor intermitent...
A two-dimensional hydrodynamic model of a tidal estuary
Roy A. Walters, Ralph T. Cheng
1979, Advances in Water Resources (2) 177-184
A finite element model is described which is used in the computation of tidal currents in an estuary. This numerical model is patterned after an existing algorithm and has been carefully tested in rectangular and curve-sided channels with constant and variable depth. One of the common uncertainties in this class...
Long-term observations of bottom current and bottom sediment movement on the mid-Atlantic continental shelf
Bradford Butman, Marlene A. Noble, David W. Folger
1979, Journal of Geophysical Research: Oceans (84) 1187-1205
Long-term in situ observations made at three locations on the mid-Atlantic continental shelf during 1975–1976 clearly show intermittent movement of bottom sediment caused by currents, waves, and other forcing mechanisms. In winter, storm-associated bottom currents greater than 30 cm s−1 resuspended and transported sediments. Net water particle excursions during storms were...
The productivity of San Cristobal Reef, Puerto Rico
Caroline S. Rogers
1979, Limnology and Oceanography (24) 342-349
San Cristobal Reef, Puerto Rico, was the site of a community metabolism study based on a new upstream-downstream method with experimental channels 4 m deep. Net productivity rates varied from 0.03 to 1.85 g O2m–2 reef area·h­–1 (x = 0.39; n = 59). Respiration measurements of one reef section from which...
Geology of the offshore Southeast Georgia Embayment, U.S. Atlantic continental margin, based on multichannel seismic reflection profiles
Richard T. Buffler, Joel S. Watkins, William P. Dillon
1979, AAPG Memoir 29
A geologic interpretation of the offshore Southeast Georgia Embayment is based on an 1,100-km multichannel seismic reflection survey conducted jointly by the University of Texas Marine Science Institute and the U.S. Geological Survey. The Southeast Georgia Embayment consists of a wedge of Cretaceous and Cenozoic sedimentary rocks that thins from...
History, landforms, and vegetation of the estuary's tidal marshes
B.F. Atwater, S.G. Conrad, J.N. Dowden, C.W. Hedel, R.L. MacDonald, W. Savage
T. J. Conomos, editor(s)
1979, Book chapter, San Francisco Bay : the urbanized estuary : investigations into the Natural History of San Francisco Bay and Delta with reference to the influence of man : fifty-eighth annual meeting of the Pacific Division/American Association for the Advancement of Science held at San Francisco State University, San Francisco, California, June 12-16, 1977
No abstract available....
Sequential development of the Appalachian orogen above a master decollement - A hypothesis
L. D. Harris (compiler), K.C. Bayer
1979, Geology (7) 568-572
Surface geology and seismic-reflection data suggest that rather than having a massive rooted central core the southern part of the Appalachian orogen from the Appalachian Plateau to the Atlantic continental shelf is underlain by an eastward-dipping decollement zone. We infer that this decollement zone was a long-lived structural element, intermittently...
Similarities between the thick-skinned Blue Ridge anticlinorium and the thin-skinned Powell Valley anticline
L. D. Harris (compiler)
1979, Geological Society of America Bulletin (90) 525-539
The Blue Ridge anticlinorium in northern Virginia is a part of an integrated deformational system spanning the area from the Piedmont to the Appalachian Plateaus. Deformation intensity within the system decreases from east to west. Differences of opinion have emerged concerning the central Appalachians as to whether the basement rocks...