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首页> 外文期刊>Contributions to Mineralogy and Petrology >Reply to Shaocheng Ji's discussion on 'Coesite-bearing eclogite breccia: implication for coseismic ultrahigh-pressure metamorphism and the rate of the process' by Yang et al. (Contrib. Mineral. Petrol., 2014, 167: 1013)
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Reply to Shaocheng Ji's discussion on 'Coesite-bearing eclogite breccia: implication for coseismic ultrahigh-pressure metamorphism and the rate of the process' by Yang et al. (Contrib. Mineral. Petrol., 2014, 167: 1013)

机译：回应纪少成关于杨氏等人的“含钴云母榴辉岩角砾岩：对同震超高压变质作用及其过程速率的讨论”。 （贡献矿物。石油，2014，167：1013）

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摘要

In his discussion, Ji ascribes our results to other workers and, using quotation marks, alleges statements that do not exist in our papers. We interpret some textures in the Yangkou eclogite breccia to be the result of rapid crystallization of local melts, but do not regard the entire breccia or the matrix to be pseudotachylyte. These, combined with the formation of the eclogite breccia from the coronitic eclogite wallrock and the preservation of intergranular coesite, imply transient (coseismic) high-pressure metamorphism. It is clearly indicated that the coesite-bearing eclogites followed a decompression and cooling path from about 3.3 GPa and 700 degrees C to about 0.3-0.6 GPa and < 375-400 degrees C, at which intergranular coesite and high-pressure microlites quenched. But Ji takes the pressure change to be from 3.3 to 1.2 GPa. The intercrystalline pressure vessel effect advocated by Ji for a compressed material should not be significant in subsequent decompression, particularly when considering the exhumation of intergranular coesite surrounded by fine omphacite grains in a deeply subducted slab.
机译：在讨论中，Ji将我们的结果归因于其他工作人员，并使用引号引述了我们的论文中不存在的陈述。我们认为洋口榴辉岩角砾岩中的某些质地是局部熔体快速结晶的结果，但并不认为整个角砾岩或基质都是假速溶质。这些，加上从硬石膏榴辉岩壁岩中形成榴辉岩角砾岩，并保存了粒间纤锌矿，就意味着短暂的（共震的）高压变质作用。清楚地表明，所述带有堇青石的榴辉岩遵循从约3.3GPa和700℃到约0.3-0.6GPa和＜375-400℃的减压和冷却路径，在该温度下，粒间的堇青石和高压微晶被淬灭。但是Ji承受的压力变化是从3.3 GPa到1.2 GPa。 Ji提倡的压缩材料的晶间压力容器效应在随后的减压中应该不显着，特别是考虑到在深俯冲的平板中细粒绿辉石晶粒包围的粒间柯氏岩的挖掘。

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