Does local resuspension maintain the benthic nepheloid layer in southeastern Lake Michigan?

Journal Article · Mon Jan 02 04:00:00 EST 1995 · Journal of Sedimentary Research, Section A: Sedimentary Petrology and Processes

OSTI ID:37113

Hawley, N ^[1]; Lesht, B M ^[2]

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1. Great Lakes Environmental Research Lab., Ann Arbor, MI (United States)
2. Argonne National Lab., IL (United States)

Time-series observations of water temperature, water transparency, and current velocity at four stations in southeastern Lake Michigan show that the benthic nepheloid layer is probably not maintained by the local resuspension of bottom sediment. Local resuspension may occasionally occur in the deep parts of the lake, but it seems likely that vertical mixing and offshore advection of sediment-laden water maintain the benthic nepheloid layer during most of the year. Although sediment trap data have been interpreted as indicating that local resuspension does occur, it is more likely that the increased sediment fluxes observed near the bottom are due to vertical redistribution of material already in suspension.

• OSTI ID: 37113
• Journal Information: Journal of Sedimentary Research, Section A: Sedimentary Petrology and Processes, Journal Name: Journal of Sedimentary Research, Section A: Sedimentary Petrology and Processes Journal Issue: 1 Vol. 65; ISSN JSRAEA; ISSN 1073-130X
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
DEPOSITION
ENVIRONMENTAL TRANSPORT
GEOLOGIC DEPOSITS
LAKE MICHIGAN
SEDIMENT-WATER INTERFACES
SEDIMENTS