Patterns of Boudinage and Apparent Stretching Lineation Developed in Folded Rocks
Patterns of Boudinage and Apparent Stretching Lineation Developed in Folded Rocks
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褶皱岩石中发育的布丁纳吉图案和表观拉伸线理
DOI：
10.1086/628012
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发表时间：
1974
期刊：
影响因子：
--
通讯作者：
D. Sanderson
中科院分区：
文献类型：
--
作者：
D. Sanderson
石香肠和明显的拉伸线理是变形岩石中平行于成层的伸展作用的结果，可能与有限应变和无限小应变状态有关。这些伸展特征的发展模式与褶皱轴（β）平行于应变椭球的Y轴的褶皱有关，并表明它们可以垂直于或平行于β发展。还考虑了β斜于Y的更一般情况的两个例子。根据石香肠在递进变形过程中向两个不同方向发育的特点，提出了一种新的双石香肠模型。
Boudinage and apparent stretching lineations result from extension parallel to layering in deformed rocks, and may be related to the states of finite and infinitesimal strain. Patterns of development of these extensional features are examined in relation to folding with the fold axis (β) parallel to the Y-axis of the strain ellipsoid, and it is shown that they can develop either normal or parallel to β. Two examples of more general cases where β is oblique to Y are also considered. A new moolel for double boudinage is suggested based on the development of boudins in two different orientations during progressive deformation.