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Metamorphism, Partial Preservation, and Exhumation of Ultrahigh‐pressure Belts by W. G. Ernst is a Earth and Planetary Sciences article available to read on EtoBox.

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The Dabie‐Sulu belt of east‐central China, the Kokchetav Complex of northern Kazakhstan, the Maksyutov Complex of the South Urals, the Dora Maira Massif of the Western Alps, and the Western Gneiss Region of southwestern Norway lie astride intracontinental suture zones. All represent collisional mountain belts. Adjoining Eurasian regions exhibit little or no evidence of a coeval calc‐alkaline arc. Each metamorphic complex contains mineralogic and textural relics of the presence or former existence of coesite ± diamond. Other ultrahigh‐P, moderate‐T metamorphic phases, including K‐rich clinopyroxene, Mg‐rich garnet, ellenbergerite, lawsonite, Al‐rutile, glaucophane, high‐Si phengite, and associations such as coesite + dolomite, magnesite + diopside, and talc + kyanite, diopside, jadeite, or phengite also testify to pressures approaching or exceeding 2.8 GPa. Each of the five well‐studied Eurasian ultrahigh‐pressure complexes consists chiefly of old, cool continental crust. Deep‐seated recrystallization took place during the Phanerozoic. Subduction zones constitute the only known plate‐tectonic environment where such high‐P, low‐T conditions exist. A model involving underflow of a sal

Who reads Metamorphism, Partial Preservation, and Exhumation of Ultrahigh‐pressure Belts?

Author

W. G. Ernst

Publisher

John Wiley and Sons; Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Wiley (ISSN 1038-4871)

Published

1999

Language

EN

Field

Earth and Planetary Sciences (Physical Sciences)