Sedimentary rock

Sedimentary rock is one of the three main rock types (the others being igneous and metamorphic rock). Sedimentary rock is formed by deposition and consolidation of mineral and organic material and from precipitation of minerals from solution. The processes that form sedimentary rock occur at the surface of the Earth and within bodies of water. [...]

Posted on March 9, 2009 at 17:31 by admin · Permalink · Comments Closed
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Rock cycle

The rock cycle is a fundamental concept in geology that describes the dynamic transitions through geologic time among the three main rock types: sedimentary, metamorphic, and igneous. As the diagram to the right illustrates, each type of rock is altered or destroyed when it is forced out of its equilibrium conditions. An igneous rock such [...]

Posted on March 9, 2009 at 15:55 by admin · Permalink · Comments Closed
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