Glide Mechanisms in Experimentally Deformed Minerals
Glide Mechanisms in Experimentally Deformed Minerals
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实验变形矿物中的滑动机制
DOI：
10.1126/science.150.3697.739
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发表时间：
1965
期刊：
影响因子：
56.9
通讯作者：
C. Raleigh
中科院分区：
文献类型：
--
作者：
C. Raleigh
本文提出了一种研究岩石中矿物的孪晶和平移滑动机制的方法，即用万能台测量晶体取向，把实验上在抛光表面上产生的滑动痕迹与晶面联系起来。在5%~ 10%应变、围压5 ~ 7毫巴、温度700 ℃ ~ 850 ℃的试样中，确定了橄榄石、顽火辉石、蓝晶石和透辉石的滑移面和滑移及孪晶的滑移方向。滑移发生在最密堆积的方向上，也是滑移面中单位刃位错的最短Burgers矢量的方向。
A method for study of mechanisms of twin and translation gliding in minerals in rocks has been devised by which slip markings produced experimentally on polished surfaces are related to crystallographic planes by universal stage measurements of the crystal orientations. In specimens strained 5 to 10 percent at 5 to 7 kilobars confining pressure and 700� to 850�C, the glide plane and glide direction for slip and twinning have been determined in olivine, enstatite, kyanite, and diopside. Slip occurs in closest-packed directions, in which also lies the shortest Burgers vector of a unit edge dislocation in the slip plane.