Wednesday, April 22, 2015

Highlights—Visualizing Dense Flows

Many deep-sea sediment deposits represent sediment that was transported by sediment-laden density flows. Yet the details of spatial and temporal fluctuations in flow structure responsible for the deposits have been poorly constrained due to technological challenges. To address this limitation, Perillo et al. present a non-invasive acoustic reflection technique to visualize the internal structure of sediment-laden flows over a wide range of sediment concentrations (5–75%), and the acoustic reflection character of resultant deposits. The results illustrate means to study such processes in the lab, and how those might be used to understand ancient analogs.

Acoustic imaging of experimental subaqueous sediment-laden flows and their deposits by Mauricio M. Perillo, Brandon Minton, Jim Buttles, and David Mohrig

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