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The laying down of Sedimentary Rock in Lakes & Streams

All rocks disintegrate slowly as a result of mechanical and chemical weathering. The fragmented particles - in the form of clay, silt, sand and gravel - are transported by the agents of erosion (water, ice, and wind) to new locations, generally at lower elevations, and deposited in layers, as shown in this diagram.

The deposited particles eventually become cemented together, forming clastic (breakable) sedimentary rock. The dissolved materials may precipitate as crystals that accumulate in layers in oceans and lakes and are cemented to form chemical sedimentary rocks.


This drawing shows how sediments of different sizes form at the bottom of a lake or sea.

A listing of Rocks

Rock Image Archive


The laying down of Sedimentary Rock in Lakes & Streams

All rocks disintegrate slowly as a result of mechanical and chemical weathering. The fragmented particles - in the form of clay, silt, sand and gravel - are transported by the agents of erosion (water, ice, and wind) to new locations, generally at lower elevations, and deposited in layers, as shown in this diagram.

The deposited particles eventually become cemented together, forming clastic (breakable) sedimentary rock.


This drawing shows how sediments of different sizes form at the bottom of a lake or sea.

A listing of Rocks

Rock Image Archive


The laying down of Sedimentary Rock in Lakes & Streams

All rocks disintegrate slowly as a result of weathering. Rock particles - in the form of clay, silt, sand and gravel - are transported by the agents of erosion (water, ice, and wind) to new locations, generally at lower elevations, and deposited in layers, as shown in this diagram.

The deposited particles eventually become cemented together to form sedimentary rocks.

This drawing shows how sediments of different sizes form at the bottom of a lake or sea.

A listing of Rocks

Rock Image Archive




Last modified January 28, 1998 by the Windows Team

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