introduction to sediments
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Introduction to Sediments. Aquatic Ecology.

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Udden-Wentworth scale. Sediments can be classified by grain size according to the Udden-Wentworth scale. Larger grains tend to remain near their source, whereas smaller particles can be more easily transported over long distances, even by slow-moving currents of water or wind.

classification of sediments
Classification of Sediments
  • Porosity
  • Particle Size
  • Shape/Composition
porosity
Porosity
  • Porosity and permeability are two of the primary factors that control the movement and storage of fluids in rocks and sediments.
  • Porosity is the ratio of the volume of openings (voids) to the total volume of material.
  • Porosity represents the storage capacity of the geologic material.
  • The primary porosity of a sediment or rock consists of the spaces between the grains that make up that material.
  • The more tightly packed the grains are, the lower the porosity.
shape composition
Shape/Composition
  • Sedimentary
sampling
Sampling
  • Seives
  • Seive Shaker/Rototap
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