Fluvial parent material

Alluvial type of parent material is associated with several types of landforms such as as old streambeds, flood plains, deltas, fans, and levees. Depending in which of those landforms has alluvial material been deposited the thickens of the strata (or layers) will vary from couple of meters to several tenths of meters. Consequently, to see those thick layers one needs to undertake a very deep excavation. But when it comes to soil formation, only the top of those strata (layers) will actually have an impact on the soil that is formed on it.

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