Definition of exsolve in English:



[NO OBJECT]Geology
  • 1 (of a mineral) separate out from solid solution in a rock:

    ‘the homogeneous alloys exsolved into metallic phases’
    • ‘Alstonite or barytocalcite occurs as very small grains that appear to have exsolved from calcium-manganese carbonate.’
    • ‘Eventually, the gasses exsolve, forming vesicles, which may coalesce to form a central cavity in the pillow.’
    • ‘The efficacy of partitioning of elements into an exsolving fluid from a melt is dependent on numerous factors, including the content of that element in the melt.’
    • ‘Gases that are dissolved in the magma until the time of eruption bubble out (exsolve) as the magma approaches the surface of the Earth.’
    1. 1.1usually as adjective exsolved[with object] Form (a mineral) by the process of exsolution:
      ‘coarsely exsolved ilmenites’
      • ‘Some older analyses show the presence of small amounts of NJ, Co, and Cu, but these are almost invariably found to reflect the presence of tiny exsolved grains of such minerals as chalcopyrite and pentlandite.’
      • ‘Ilmenite is now largely preserved as skeletal crystals in which exsolved magnetite lamellae have been altered, and the ilmenite itself partly altered to sphene.’
      • ‘Notable occurrences of this include goethite psedomorphing pyrite, with exsolved gold near the surfaces of the replacement.’


Mid 20th century: (originally as exsolution) from ex- + solution.