Premium
Dynamic phase boundaries of olivine‐wadsleyite in subduction zones in the western Pacific
Author(s) -
Jing ZhiCheng,
Ning JieYuan,
Wang ShuGuang,
Zang ShaoXian
Publication year - 2002
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2001gl013810
Subject(s) - subduction , geology , olivine , mantle (geology) , phase (matter) , seismology , metastability , geochemistry , tectonics , chemistry , physics , organic chemistry , quantum mechanics
A modified coupling scheme is proposed to calculate the thermal structures and the kinetics of olivine to wadsleyite phase transformation in subduction zones, which assures a high computational precision. The phase and thermal structures of some subduction zones in the western Pacific region are calculated. Computational results show that most subduction zones don't have large wedges of metastable olivine, which lets the mechanisms of transformational faulting have difficulty explaining deep seismicity.