GEOS-240: The Definition and Characteristics of a Tsunami

A tsunami is a series of three to four seismic waves that form as gravity equalizes a significant amount of oceanic water that was displaced by a natural disturbance, such as a seaquake or marine or continental landslide. Though a tsunami’s peak wave may occur at any point in the series (Bryant, 2001), all waves within a tsunami wave series have common characteristics.

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GEOS-240: Turbidity Currents

Turbidity currents are a mechanism involved with transporting vast quantities of shallow-water sediments to the abyssal depths.  A turbidity current is a type of density current, where gravity acts upon the differences in density between fluids (Kneller, 2000).  Kneller and Buckee’s journal article does good job defining what a turbidity current is.  In terms of turbidity currents, the density difference is attributed to the suspension of sediments due to fluid turbulence. 

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