Dorrell, RM, Patacci, M orcid.org/0000-0003-1675-4643 and McCaffrey, WD orcid.org/0000-0003-2895-3973 (2018) Inflation of ponded, particulate laden, density currents. Journal of Sedimentary Research, 88 (11). pp. 1276-1282. ISSN 1527-1404
Abstract
Field-based, physical modeling and analytical research approaches currently suggest that topographically confined particle-laden density currents commonly inflate to produce suspension clouds that generate tabular and texturally homogeneous sedimentary deposits. Here, a novel three-dimensional theoretical model details a phase space of the criteria for inflation as a function of flow duration, basin size and geometry, total mass transport, sediment concentration, and particle grain size. It shows that under most circumstances cloud inflation is unlikely at real-world scales. Even where inflation is possible, inflation relative to initial flow height is small except for suspensions of silt or finer-grained sediment. Tabular deposits therefore either arise from processes other than flow ponding, or deposits in confined settings may be significantly more complex than are currently understood, due to processes of autogenic compensation and channelization, with associated implications for reservoir characterization in applied contexts. This study illustrates the potential of analytical flow modeling as a powerful complement to other research approaches.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | Copyright 2018, SEPM (Society for Sedimentary Geology. This is an author produced version of a paper published in Journal of Sedimentary Research. Uploaded in accordance with the publisher's self-archiving policy. |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) > Earth Surface Science Institute (ESSI) (Leeds) The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) > Institute for Applied Geosciences (IAG) (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 28 Sep 2018 11:05 |
Last Modified: | 06 Nov 2019 01:38 |
Status: | Published |
Publisher: | SEPM Society for Sedimentary Geology |
Identification Number: | 10.2110/jsr.2018.65 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:136324 |