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大别山超高压变质带内发育强烈变形的榴辉岩,其中的绿辉石被强烈拉长变形,形成LPO组构。通过透射电镜观察和测试,笔者在变形的绿辉石晶体中不仅识别出自由位错、位错环和位错墙等塑性变形结构特征,而且还识别出水汽泡。这些水汽泡常常与位错环相共生。同时通过显微红外光
In the UHP metamorphic belt of the Dabie Mountains, intensely deformed eclogites are developed, in which the omphacite is strongly elongated and deformed to form LPO structures. Through TEM observation and testing, the author not only recognized the structural features of plastic deformation such as free dislocations, dislocation loops and dislocation walls in the deformed omphacite crystals, but also recognized water vapor bubbles. These water vapor bubbles often co-exist with dislocation loops. At the same time through the microscopic infrared light