Hostname: page-component-586b7cd67f-tf8b9 Total loading time: 0 Render date: 2024-11-25T20:37:05.168Z Has data issue: false hasContentIssue false

On the Significance of β Intersections in Superposed Deformation Fabrics

Published online by Cambridge University Press:  01 May 2009

Maurits Lindström
Affiliation:
Department of Geology, University of Lund, Sweden.

Abstract

The uncertainty of the most frequent orientations of β and fold axes relative to tectonic co-ordinates has possibly been overemphasized in tectonic literature. The β concentrations of obliquely deformed folds will be spread along characteristic paths. The superposed deformation would in most cases of flexural slip appear as folds in certain predominant directions and on suitably oriented surfaces. In tectonites with a single, nearly horizontal mode for the orientations of the lamination, β maxima formed by flexural slip should mostly be parallel to the axes of rotation.

Type
Articles
Copyright
Copyright © Cambridge University Press 1961

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Johnson, M. R. W., 1956. Conjugate fold systems in the Moine Thrust Zone in the Lochcarron and Coulin Forest areas of Wester Ross., Geol. Mag., xciii, 345350.CrossRefGoogle Scholar
Johnson, M. R. W., 1957. The structural geology of the Moine Thrust Zone in Coulin Forest, Wester Ross. Quart. J. Geol. Soc. London., cxiii, 241266CrossRefGoogle Scholar
Sander, B., 1948. Einführung in die Gefügekunde der geologischen Körper, I. Wien, Springer Verl.Google Scholar
Weiss, L. E., 1959. Geometry of superposed folding. Bull. Geol. Soc. Amer., lxx, 91106.CrossRefGoogle Scholar
Weiss, L.E. and McIntyre, D. B., 1957. Structural geometry of Dalradian rocks at Loch Leven, Scottish Highlands. J. Geol., lxv, 575601.CrossRefGoogle Scholar