9.3 Flashcards
Floodplain
Flat, open land beside a river where sediments are deposited during floods
Erosion
The process of eroding or being eroded by wind, water, or other natural agents.
Glaciers
Large bodies of ice that move down slopes and push boulders, rocks and gravel in front of them
Moraine
Deposit left by movement of a glacier
Sandstone
A sedimentary rock with medium-sized grains. The sand grains are cemented together by silica, lime or other salts.
Mudstone
A fine-grained, sedimentary rock without layering
Shale
A fine-grained sedimentary rock formed in layers by the consolidation of clay
Silstone
A sedimentary rock with a particle size between that of sandstone and mudstone
Conglomerate
Sedimentary rock containing large particles of various sizes cemented together
Limestone
A sedimentary rock formed from the remains of sea organisms. It consists mainly of calcium carbonate.
Coal
A sedimentary rock formed from dead plants and animals that were buried before rotting completely
Rock salt
A sedimentary deposit formed when a salt lake or seabed dried up. Its main chemical is sodium chloride.
Sedimentary Rocks
Rocks formed from sediments deposited by water, wind or ice. The sediments are cemented together in layers, under pressure.
