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Suspended-sediment response to semidiurnal and fortnightly tidal variations in a mesotidal estuary: Columbia River, U.S.A.
OLR (1983)30 (12)
D. SubmarineGeologyand Geophysics
D50. Subsurface structure 83:6711
Rossi, Sergio, Christian Auroux and Jean Mascle,
sediment production. Mar. Ecol. (P.S.Z.N. I), 4(1):45-63. Geol. Palaontol. Inst. und Mus. der Univ., Goldschmidtstr. 3, D-3400 Gottingen, FRG.
1983. The Guff of Taranto (southern Italy): seismic stratigraphy and shallow structure. Mar.
Geol., 51(3/4):327-346.
83:6712 Gelfenbaum, Guy, 1983. Suspended-sediment response to semidiurnal and fortnightly tidal variations in a mesotidal estuary: Columbia River, U.S.A. Mar. Geol., 52(1/2):39-57. The turbidity maximum in the Columbia Estuary is an 'unsteady feature' varying semidiurnally, fortnightly and seasonally; the 'magnitude of suspended sediment concentration variations is similar for the 3 time scales.' It is suggested that these time scales and their associated processes may be significant in other estuarine systems. Suspended sediment concentrations in the turbidity maximum may reach 10 times the river washload concentration and 20 times the ocean concentration. Sch. of Oceanogr., Univ. of Washington, Seattle, Wash. 98195, USA. (msg) 83:6713 Pickrill, R.A., 1983. Wave-built shelves on some low-energy coasts. Mar. Geol., 51(3/4): 193-216. Various data are used to construct a model for equilibrium terrace formation in response to wind waves where effective fetch lengths do not exceed 50 kin. Such a model may have application to equilibrium terrace formation on proto-continental shelves. NZOI, P.O. Box 12-346, Wellington, New Zealand. (hbf) 83:6714
and
Horst
nature of littoral drift along the northeast Florida coast. Mar. Geol., 51(3/4):217-237.
Results from computer simulations of wave-generated longshore currents and beach- and dune-sand analyses contradict the classic view of a net littoral drift moving from north to south. At least six distinct coastal segments can be identified, each containing drift cells directed northward and southward; adjacent segments experience minimal net sand exchange. Exxon Prod. Res. Co., P.O. Box 2189, Houston, Tex. 7700l, USA.
D80. Reefs and atolls
D70. Coasts, beaches, marshes
Jurgen
83:6715
Stapor, F.W. Jr. and J.P. May, 1983. The cellular
The Apulian slope is a down-faulted passive margin covered by irregular unconsolidated Plio-Quaternary sediments. The Taranto valley is a thickly sedimented trench-like feature that is the submerged extension of the onshore Bradanic fore-deep. The eastern Calabrian margin, intensively cut by normal faulting, comprises a lower acoustic sequence representing the widespread 'allochthonous Apenninic' units which overthrust to the east the unconsolidated Taranto submarine valley sediments, creating a sinuous N W / S E trending thrust-front. Ist. di Geol. Mar. (CNR), via Zamboni, Bologna, Italy.
Schneider,
919
Torunski,
1983.
Biokarst on limestone coasts, morphogenesis and
83:6716
Kjerfve, B. and S.P. Dinnel, 1983. Hindcast hurricane characteristics on the Belize barrier reef. Coral Reefs, 1(4):203-207. Dept. of Geol. and Mar. Sci. Program, Univ. of South Carolina, SC, USA.
D120. Sedimentary processes (deposition, diagenesis, etc.) 83:6717 Johnson, L.R., 1983. The transport mechanisms of clay and fine silt in the north Irish Sea. Mar. Geol., 52(1/2):M33-M41. Dept. of Mineral., British Mus. (Nat. Hist.), Cromwell Rd., London SW7 5BD, UK. 83:6718
Mange-Rajetzky, M.A., 1983. Sediment dispersal from source to shelf on an active continental margin, S. Turkey. Mar. Geol., 52(1/2):1-26.
Light- and heavy-mineral data indicate that the siliciclastic sediments of the Turkish coast between Karatas and the GOksu Delta derive from 'ultramafic sources, associated cherts and deep-sea sediments....A fine-grained mineralogically homogeneous surface sediment' and a medium-grained sediment (deposited by the Seyhan and Ceyhan rivers in the Quaternary) are present on the shelf. The distributions of heavy minerals reveal intensive
D. SubmarineGeologyand Geophysics
D50. Subsurface structure 83:6711
Rossi, Sergio, Christian Auroux and Jean Mascle,
sediment production. Mar. Ecol. (P.S.Z.N. I), 4(1):45-63. Geol. Palaontol. Inst. und Mus. der Univ., Goldschmidtstr. 3, D-3400 Gottingen, FRG.
1983. The Guff of Taranto (southern Italy): seismic stratigraphy and shallow structure. Mar.
Geol., 51(3/4):327-346.
83:6712 Gelfenbaum, Guy, 1983. Suspended-sediment response to semidiurnal and fortnightly tidal variations in a mesotidal estuary: Columbia River, U.S.A. Mar. Geol., 52(1/2):39-57. The turbidity maximum in the Columbia Estuary is an 'unsteady feature' varying semidiurnally, fortnightly and seasonally; the 'magnitude of suspended sediment concentration variations is similar for the 3 time scales.' It is suggested that these time scales and their associated processes may be significant in other estuarine systems. Suspended sediment concentrations in the turbidity maximum may reach 10 times the river washload concentration and 20 times the ocean concentration. Sch. of Oceanogr., Univ. of Washington, Seattle, Wash. 98195, USA. (msg) 83:6713 Pickrill, R.A., 1983. Wave-built shelves on some low-energy coasts. Mar. Geol., 51(3/4): 193-216. Various data are used to construct a model for equilibrium terrace formation in response to wind waves where effective fetch lengths do not exceed 50 kin. Such a model may have application to equilibrium terrace formation on proto-continental shelves. NZOI, P.O. Box 12-346, Wellington, New Zealand. (hbf) 83:6714
and
Horst
nature of littoral drift along the northeast Florida coast. Mar. Geol., 51(3/4):217-237.
Results from computer simulations of wave-generated longshore currents and beach- and dune-sand analyses contradict the classic view of a net littoral drift moving from north to south. At least six distinct coastal segments can be identified, each containing drift cells directed northward and southward; adjacent segments experience minimal net sand exchange. Exxon Prod. Res. Co., P.O. Box 2189, Houston, Tex. 7700l, USA.
D80. Reefs and atolls
D70. Coasts, beaches, marshes
Jurgen
83:6715
Stapor, F.W. Jr. and J.P. May, 1983. The cellular
The Apulian slope is a down-faulted passive margin covered by irregular unconsolidated Plio-Quaternary sediments. The Taranto valley is a thickly sedimented trench-like feature that is the submerged extension of the onshore Bradanic fore-deep. The eastern Calabrian margin, intensively cut by normal faulting, comprises a lower acoustic sequence representing the widespread 'allochthonous Apenninic' units which overthrust to the east the unconsolidated Taranto submarine valley sediments, creating a sinuous N W / S E trending thrust-front. Ist. di Geol. Mar. (CNR), via Zamboni, Bologna, Italy.
Schneider,
919
Torunski,
1983.
Biokarst on limestone coasts, morphogenesis and
83:6716
Kjerfve, B. and S.P. Dinnel, 1983. Hindcast hurricane characteristics on the Belize barrier reef. Coral Reefs, 1(4):203-207. Dept. of Geol. and Mar. Sci. Program, Univ. of South Carolina, SC, USA.
D120. Sedimentary processes (deposition, diagenesis, etc.) 83:6717 Johnson, L.R., 1983. The transport mechanisms of clay and fine silt in the north Irish Sea. Mar. Geol., 52(1/2):M33-M41. Dept. of Mineral., British Mus. (Nat. Hist.), Cromwell Rd., London SW7 5BD, UK. 83:6718
Mange-Rajetzky, M.A., 1983. Sediment dispersal from source to shelf on an active continental margin, S. Turkey. Mar. Geol., 52(1/2):1-26.
Light- and heavy-mineral data indicate that the siliciclastic sediments of the Turkish coast between Karatas and the GOksu Delta derive from 'ultramafic sources, associated cherts and deep-sea sediments....A fine-grained mineralogically homogeneous surface sediment' and a medium-grained sediment (deposited by the Seyhan and Ceyhan rivers in the Quaternary) are present on the shelf. The distributions of heavy minerals reveal intensive