GEOG 1111 Study Guide - Midterm Guide: Parent Material, Pedogenesis, Soil Structure
Document Summary
In most cases this is how gravity, water, wind, and ice. The breaking down or disintegration (fragmentation) of rocks with. Can occur both on and below the surface. The resulting fragments have the same chemical composition as the large rock, they are simply smaller in size. Chemical weathering decomposition of the minerals in rock through chemical alteration. Water is often necessary, since the rock is essentially dissolved away. Combination of chemical and mechanical weathering processes rocks will be broken down. A renewable resource, but not an inexhaustible resource. Soil horizon a layer of soil within the soil profile, which is distinct from the layers above and below it in the sequence. Pedogenesis the formation of soil is the result of a combination of on-going processes. Components of soil minerals, organic matter, water, and air. They are the weathered material of the parent rock. They result from the decay of plant & animal matter, or their waste products.
