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Tag Archives: weathering

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Weathering & Soils

ScienceBy William Anderson (Schoolworkhelper Editorial Team)January 29, 20111 Comment

After rocks are formed, they are weathered when exposed at the surface; this prepares material for transport by erosional processes in the rock cycle two main types of weathering include mechanical (disintegration) and chemical (decomposition) that act together and enhance the effectiveness of each other Mechanical: reduction of rocks to smaller pieces, includes: Frost wedging…

Rocks and the Rock Cycle

ScienceBy William Anderson (Schoolworkhelper Editorial Team)August 25, 20104 Comments

Layers of rocks can be faulted, folded and tilted by large forces within the Earth’s crust. The study of these changes can give information about the strength and direction of the forces involved. Sedimentary rocks – layers of rock fragments that were compressed and cemented together. They often contain fossils. Igneous rocks – molten rock…

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