Eoarchean contrasting ultra-high-pressure to low-pressure metamorphisms (< 250 to > 1000 °C/GPa) explained by tectonic plate convergence in deep time
Eoarchean contrasting ultra-high-pressure to low-pressure metamorphisms (< 250 to > 1000 °C/GPa) explained by tectonic plate convergence in deep time
复制标题
通过构造板块在深部时间的会聚解释的始新世超高压与低压变质作用(250至1000 °C/GPa)的对比
DOI:
10.1016/j.precamres.2020.105770
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发表时间:
2020-07-15
影响因子:
3.8
通讯作者:
Yi, Keewook
中科院分区:
文献类型:
--
作者:
Nutman, Allen P.;Bennett, Vickie C.;Yi, Keewook
Greenland's Itsaq Gneiss Complex (IGC) shows Eoarchean ( > 3600 Ma) 250-400 degrees C/GPa (low T/P - high pressure) and >= 1000 degrees C/GPa (high T/P) metamorphic regimes, demonstrating a similarly of contrasting metamorphic T/P regimes from the Phanerozoic back to the start of Earth's rock record. Low T/P metamorphism produced: (i) Deep crustal eclogitised mafic rocks which upon partial melting formed the tonalites dominating the IGC; (ii) similar to 550 degrees C >= 2.6 GPa conditions (