- Compression (geology)
In geology the term compression refers to a set of stresses directed toward the center of a rock mass. Compressive strength refers to the maximum compressive stress that can be applied to a material before failure occurs. When the maximum compressive stress is in a horizontal orientation, thrust faulting can occur, resulting in the shortening and thickening of that portion of the crust. When the maximum compressive stress is vertical, a section of rock will often fail in normal faults, horizontally extending and vertically thinning a given layer of rock. Compressive stresses can also result in folding of rocks. Because of the large magnitudes of lithostatic stress in tectonic plates, tectonic-scale deformation is always subjected to net compressive stress.
Wikimedia Foundation. 2010.
Look at other dictionaries:
Compression — may refer to: In physical science Compression (physical), the result of the subjection of a material to compressive stress Compression member, a class of structural elements, of which a column is the most common specific example Compressibility,… … Wikipedia
Geology of the Iberian Peninsula — The geology of the Iberian Peninsula consists of the study of the rock formations on the Iberian Peninsula, which includes Spain, Portugal, Andorra, and Gibraltar. The peninsula contains rocks from every age from Ediacaran to Recent, and almost… … Wikipedia
Geology of Venus — Radar image of the surface of Venus, centered at 180 degrees east longitude Venus is a planet with striking surface characteristics. Most of what is known about its surface stems from radar observations, mainly images sent by the Magellan probe… … Wikipedia
Geology of solar terrestrial planets — The geology of solar terrestrial planet mainly deals with the geological aspects of four planets of the Solar system namely, Mercury, Venus, Earth and Mars and one terrestrial dwarf planet, Ceres. Objects like Pluto are similar to terrestrial… … Wikipedia
Geology of the Bryce Canyon area — Paria View overlooks an intermittent stream flowing toward the Paria River, s … Wikipedia
Geology of England — The Geology of England is mainly sedimentary. The youngest rocks are in the south east around London, progressing in age in a north westerly direction. [ [http://www.soton.ac.uk/ imw/Geology Britain.htm Southampton University] retrieved 21/1/07]… … Wikipedia
Geology of the Grand Teton area — The geology of the Grand Teton area consists of some of the oldest rocks and one of the youngest mountain ranges in North America. The Teton Range, mostly located in Grand Teton National Park, started to grow some 9 million years ago. An older… … Wikipedia
Geology of Great Britain — The Geology of Great Britain is hugely varied and complex, and gives rise to the wide variety of landscapes found across the islands. This varied geology has also meant that the island has been an important source for the formation of many… … Wikipedia
Geology of the Death Valley area — The exposed geology of the Death Valley area presents a diverse and complex story that includes at least 23 formations of sedimentary units, two major gaps in the geologic record called unconformities, and at least one distinct set of related… … Wikipedia
Geology of the North Sea — Contents 1 Tectonic structure 2 Precambrian 3 Finnmarkian, Athollian, Caledonian Orogenies … Wikipedia