Kinetics of the Coesite-Quartz Transition: Application to the Exhumation of Ultrahigh-Pressure Rocks
نویسندگان
چکیده
منابع مشابه
The influence of OH in coesite on the kinetics of the coesite-quartz phase transition
Coesite is an important pressure indicator for metamorphic rocks of ultra-high pressure origin. However, it often does not survive exhumation, but reacts back to quartz. Although it was shown experimentally that hydrogen incorporation in coesite increases with increasing pressure, the few coesite relics, which are found in nature, are “dry”. Thus, does the incorporation of hydrogen promote the ...
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Metamorphic coesite and diamond in the Dabie Shan, eastern China, testify to subduction of continental crust to >100 km depth. Exhumation of these ultrahigh-pressure rocks through the crust encompassed two stages. (1) South-dipping foliation, southeastplunging stretching lineation, lineation-parallel isoclinal folds, and boudins indicate extreme subhorizontal shortening and subvertical extensio...
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ژورنال
عنوان ژورنال: Journal of Petrology
سال: 2003
ISSN: 1460-2415
DOI: 10.1093/petrology/44.4.773