Tutorial:Sheetflow Deposits

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Sheetflow deposits
Sheetflow is the movement of water across a surface in a sheet-like mass instead of within channels or streambeds. Because sheet flow can only transport very fine particles, these deposits consist of fine layers of very well-sorted fine sands, silts and clays. They are deposited at breaks of slope and may intercalate with alluvial and colluvial deposits.

Vertical accumulation of sheet flow deposits is often slow and bioturbation can destroy the fine banding. Often the only evidence of sheetflow deposition may be a deepening and fining of soil at the base of slopes or upslope of obstructions.

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