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Tectonics On Icy Moons
Tectonic activity has been studied on several icy moons. Background Igneous activity on icy moons can be defined as the melting, ascension, and solidification of liquids, particularly water and its ice polymorphs. Tectonic features on icy lithospheres occur by global and regional stresses acting on the moon's interior. Fractures in the icy lithosphere influence the mechanisms by which the lithosphere reacts to stress. An unfractured ice lithosphere has a greater shear strength than tensile strength, and accordingly, compressional deformation must occur by shear failure and cause thrust and strike-slip faulting. Conversely, prefractured ice has much less shear strength, and extensional stress will produce normal faults and graben. Residual heat from accretion is one possible source of internal heat for icy moons. But only moons with radii greater than about 2000 km are thought to be massive enough to melt pure water-ice in the outer layers. Tidal heating and the decay of rad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plate Tectonics On Europa
Plate may refer to: Cooking * Plate (dishware), broad, mainly flat vessel commonly used to serve food * Plates, tableware, dishes or dishware used for setting a table, serving food and dining * Plate, the content of such a plate (for example: rice plate) * Plate, to Food presentation, present food, on a plate * Plate, Cut of beef#Forequarter cuts, forequarter cut of beef Places * Plate, Germany, municipality in Parchim, Mecklenburg-Vorpommern, Germany * Plate, borough of Lüchow, Lower Saxony, Germany * River Plate (other) * Tourelle de la Plate, lighthouse in France Science and technology Biology and medicine * Plate (anatomy), several meanings * Dental plate, also known as dentures * Dynamic compression plate, metallic plate used in orthopedics to fix bone * Microtiter plate (or microplate or microwell plate), flat plate with multiple "wells" used as small test tubes * Orthopedic plate, internal fixation used in orthopaedic surgery * Petri dish or Petri plate, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
