| 单词 | shock metamorphism |
| 释义 | > as lemmasshock metamorphism shock metamorphism n. Geology the changes induced in rocks and minerals subjected to deformation and heating by shock waves resulting from the impact of asteroids, meteorites, and other bodies; the processes resulting in such changes. ΚΠ 1962 Trans. Amer. Geophys. Union 43 464/2 Some textures which have previously been ascribed to ‘thermal’ metamorphism may be due to textural adjustments during, and subsequent to, shock metamorphism. 1995 Earth Oct. 8/3 The field relationships of pseudotachylyte suggest that it experienced such extreme conditions during intense faulting, or perhaps shock metamorphism. 2002 M. R. Dence in J. Plado & L. J. Pesonen Impacts in Precambrian Shields 73 Where outcrops permit, zones of shock metamorphism can be mapped that typically decrease radially from moderately strong in the centre to weak towards the margin. < as lemmas |
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