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Surging Versus Continuous Turbidity Currents: Flow Dynamics and Deposits in an Experimental Intraslope Minibasin

Lamb, Michael P. and Hickson, Thomas and Marr, Jeffrey G. and Sheets, Ben and Paola, Chris and Parker, Gary (2004) Surging Versus Continuous Turbidity Currents: Flow Dynamics and Deposits in an Experimental Intraslope Minibasin. Journal of Sedimentary Research, 74 (1). pp. 148-155. ISSN 1527-1404.

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Small intraslope basins (~100 km^2), or "minibasins," such as those found on the continental slope of the Gulf of Mexico, have been filled predominantly by turbidity currents. Each minibasin is the result of local subsidence and is partially or completely isolated from neighboring basins by ridges formed from compensational uplift. We undertook a series of experiments to investigate the relationship between the flow dynamics of turbidity currents entering a minibasin and the stratal architecture of their deposits. The experiments were performed using continuous-feed turbidity currents and surge-feed turbidity currents. A dimensionless ponding number is developed to compare the geometry of the deposits with the dynamics of the flows that filled the basins. The experimental surging turbidity currents created a deposit that was notably more ponded than the deposits of continuous turbidity currents.

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Lamb, Michael P.0000-0002-5701-0504
Additional Information:© 2004 SEPM. Received 15 January 2003; accepted 21 June 2003. We thank Richard Hiscott, Mary Kraus, Paul Myrow, Carlos Pirmez, and John Southard for comprehensive reviews that greatly improved this paper. This research was supported by the St. Anthony Falls Oil Consortium (ExxonMobil, Chevron-Texaco, ConocoPhillips, and Japan National Oil Company) and the Office of Naval Research STRATAFORM program.
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St. Anthony Falls Oil ConsortiumUNSPECIFIED
Office of Naval Research (ONR)UNSPECIFIED
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Record Number:CaltechAUTHORS:20110824-125752825
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:25013
Deposited By: Tony Diaz
Deposited On:25 Aug 2011 18:35
Last Modified:03 Oct 2019 03:01

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