The greatest part of the geological formations are altered when outcropping. Formed under temperature, pressure and chemical conditions different from those prevailing at the interface with the atmosphere, the rocks are transformed into a softer material. Their physical and chemical characteristics are changed because new minerals are formed, new passageways for water are opened and most of the chemical components are leached out. The altered mantle is in its turn covered by soils when the climatic and topographic conditions are favorable for the life of plants and trees.
CITATION STYLE
Velde, B., & Meunier, A. (2008). Clay Mineral Formation in Weathered Rocks: Water/Rock Interaction. In The Origin of Clay Minerals in Soils and Weathered Rocks (pp. 143–239). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-540-75634-7_4
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