A physical model for the rate of deposition of fine-grained sediments in the deep sea

Research Article| April 01, 1976 A physical model for the rate of deposition of fine-grained sediments in the deep sea I. N. McCAVE; I. N. McCAVE 1School of Oceanography, Oregon State University, Corvallis, Oregon 97331 Search for other works by this author on: GSW Google Scholar STEPHEN A. SWIFT STEPHEN A. SWIFT 1School of Oceanography, Oregon State University, Corvallis, Oregon 97331 Search for other works by this author on: GSW Google Scholar Author and Article Information I. N. McCAVE 1School of Oceanography, Oregon State University, Corvallis, Oregon 97331 STEPHEN A. SWIFT 1School of Oceanography, Oregon State University, Corvallis, Oregon 97331 Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Geological Society of America GSA Bulletin (1976) 87 (4): 541–546. https://doi.org/10.1130/0016-7606(1976)87<541:APMFTR>2.0.CO;2 Article history First Online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation I. N. McCAVE, STEPHEN A. SWIFT; A physical model for the rate of deposition of fine-grained sediments in the deep sea. GSA Bulletin 1976;; 87 (4): 541–546. doi: https://doi.org/10.1130/0016-7606(1976)87<541:APMFTR>2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract A model for the net entrapment of fine suspended sediment in the viscous sublayer of a turbulent boundary layer yields an expression of the same form as one derived previously on an empirical basis. The expression is modified by a factor that takes into account the reduction in rate of deposition caused by occasional erosion, bottom roughness, and organic resuspension. A curve for the variation in critical deposition shear stress with particle settling velocity is constructed using the assumption that the critical deposition stress is equal to the critical erosion stress for fine noncohesive material. Application of the model to postglacial deposition rates using modern concentration data gives reasonable agreement and suggests values of the factor little less than unity. The model involves assumption of a constant near-bed suspended sediment concentration. An alternative case of decrease in concentration with distance along the flow path shows that the grain-size modes in the deposited sediment resemble the pattern of size modes found north of the Carnegie Ridge in the Panama Basin. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.