变形砾石（deformed pebble）是在外力作用下产生高度塑性变形的砾石。主要有两种类型：①表面呈曲面的砾石，如马鞍石、灯盏石（lamp dish pebble）、猴面石（monkey face concave pebble）等，较普遍地出现在冰川沉积物中，是冰川作用下形成的；②镶嵌砾石，富含经历剧烈构造变动的砾石层，是构造动力作用的产物。
... 变形 deformation 变形砾石 deformation boulder 变余斑状结构 blastoporphyritic texture ...
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采用室内中型三轴试验和现场碾压载荷试验对糯扎渡高心墙堆石坝心墙砾石土料的变形特性进行了研究。
The deformation properties of core gravelly soil of the Nuozhadu high rockfill dam are studied by using medium-scale triaxial tests and the field loading tests.
研究结果表明，对糯扎渡心墙砾石土料，由室内三轴试验和现场载荷试验得到的变形特性基本一致。
The study result indicates that the deformation properties of core clay from the triaxial tests are well agreed with those from the field loading tests.
有的学者将各种畸形砾石称之为“冰川变形石”，并作为中国东部第四纪冰川作用的证据。
Various distorted gravels were called glacier deformed stones by Li Siguang (J. S. Lee) and his supporters and were taken to be the evidence for Quaternary glaciation in eastern China.
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