Publisher's Synopsis
Excerpt from Mouth of the Mississippi: Jetty System Explained
The Mississippi is simply a transporter of solid matter to the sea. This consists chie?y of sand and alluvion, which is held in suspension by the mechanical effect of the current. A small portion, consisting of larger aggregations, such as gravel. Boulders, small lumps of clay, and drift wood, is rolled forward along the bottom. By far the greatest portion is, however, transported in suspension. The amount of this matter, and the size and weight of the particles which the stream is enabled to hold up and carry forward, depends wholly upon the rapidity of the stream, modified, however, by its depth. The banks and bottom being chie?y sand and alluvion, are easily disintegrated by the movement of the water: hence the amount of load lost by any slacking of the current at one place, will be quickly recovered in the first place below where the current is again increased.
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