Knowra Recrystallization Recrystallization Recrystallization is the growth or reorganization of mineral grains in a solid rock without melting. It changes grain size, shape, or orientation through processes such as deformation and heating.
Grain boundary : The interface separating two crystals or grains in a solid material. Recrystallization commonly proceeds as grain boundaries migrate and consume neighboring grains.
Metamorphism : The solid-state transformation of rocks through changes in temperature, pressure, or chemical environment. Recrystallization is one process through which metamorphic rocks change their mineral textures.
Metamorphic petrology : The study of metamorphic rocks, their mineral assemblages, and the conditions of their formation. Petrologists use recrystallized grains to interpret a rock's metamorphic history.
Melting : The transition of a solid material into a liquid as it gains sufficient thermal energy. Recrystallization reorganizes solid grains rather than turning the rock into magma.
Dynamic recrystallization : Recrystallization that occurs during deformation, as new grains form or existing grains reorganize. It describes recrystallization while tectonic strain is actively being applied.
Metamorphic rock : Rock transformed from pre-existing rock by heat, pressure, or chemically active fluids without melting completely. Its mineral grains commonly record recrystallization during metamorphism.
Microstructural analysis : The examination of grain-scale structures to infer the processes that shaped a material. Microscopic grain shapes and boundaries reveal recrystallization mechanisms.
Metasomatism : Chemical alteration of rock through the transfer of material by fluids. Unlike recrystallization alone, metasomatism changes bulk chemistry through material exchange.
Static recrystallization : Recrystallization after deformation has ceased, commonly driven by heat and stored strain energy. It distinguishes post-deformation grain growth from changes occurring during active strain.
Mineral : A naturally occurring crystalline solid with a defined chemical composition or range of compositions. Mineral crystals are the grains whose size, shape, and arrangement recrystallization modifies.
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