Diastrophism is a general term that refers to deformation of the Earth's crust. In Geology, a crust is the outermost solid shell of a planet or moon
The term covers movement of solid crust material (as opposed to molten material which is volcanism). Plate tectonics and hotspots Divergent plate boundaries At the The movements cause rock to be bent or broken as a result of pressures exterted by plate tectonics or the rise of magma from below. Plate tectonics (from Greek τέκτων tektōn "builder" or "mason" describes the large scale motions of Earth 's Lithosphere Magma (Plurals magmas and magmata) is molten rock that sometimes forms beneath the surface of the Earth (or any other Terrestrial planet
The most obvious evidence of disastrophic movement can be seen in sedimentary rock where bent, broken or non-horizontal strata provide visual proof of movement. Sedimentary rock is one of the three main rock types (the others being igneous and Metamorphic rock) In Geology and related fields a stratum (plural strata) is a layer of rock or Soil with internally consistent characteristics that distinguishes Diastrophic movement can be classified as two types, folding and faulting. See also Folding The term fold is used in Geology when one or a stack of originally flat and planar surfaces such as Sedimentary In Geology a fault, or fault line, is a planar rock fracture which shows evidence of relative movement
See Structural geology for more information. Structural geology is the study of the three dimensional distribution of rock bodies and their planar or folded surfaces and their internal fabrics
References
- McKnight, Tom L; Hess, Darrel (2000). "The Internal Processes: Diastrophism", Physical Geography: A Landscape Appreciation. Upper Saddle River, NJ: Prentice Hall, 409. ISBN 0-13-020263-0.
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