Deposits
When the energy of a turbidity current lowers, its ability to keep suspended sediment decreases, thus sediment deposition occurs. These deposits are called turbidites. Turbidity currents are rarely seen in nature, thus turbidites can be used to determine turbidity current characteristics. Some examples: grain size can give indication of current velocity, grain lithology and the use of foraminifera for determining origins, grain distribution shows flow dynamics over time and sediment thickness indicates sediment load and longevity.
Turbidites are commonly used in the understanding of past turbidity currents, for example, the Peru-Chile Trench off Southern Central Chile (36°S-39°S) contains numerous turbidite layers that were cored and analysed. From these turbidites the predicted history of turbidity currents in this area was determined, increasing the overall understanding of these currents.
Read more about this topic: Turbidity Current
Famous quotes containing the word deposits:
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