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Intra-Stratal Flow and Convolute Folding

Published online by Cambridge University Press:  01 May 2009

Emyr Williams
Emyr Williams
Affiliation:
Geological Survey Department, P.O. Box 789, Georgetown, British Guiana.
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Abstract

The property of liquefaction of certain confined, water-logged, unconsolidated sedimentary layers is considered to play an important part in the development of much of convolute folding. Lateral intrastratal laminar flow of liquefied beds, according to flow patterns mainly determined by the distribution of parts of the layers that have remained solid, appears to account satisfactorily for internal folding. Although intra-stratal flow, which can result from a number of causes, may considerably deform the stratification planes of a liquefied layer, there is neither lateral shortening nor a notable change in the thickness of the bed.

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Type
Articles
Information
Geological Magazine , Volume 97 , Issue 3 , June 1960 , pp. 208 - 214
Copyright
Copyright © Cambridge University Press 1960

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References

REFERENCES

Baldry, R. A., 1938. Slip-planes and Breccia Zones in the Tertiary Rocks of Peru. Quart. Journ. Geol. Soc., xciv, 347–358.CrossRefGoogle Scholar
Brown, C. B., 1938. On a Theory of Gravitional Sliding Applied to the Tertiary of Ancon, Ecuador. Quart. Journ. Geol. Soc., xciv, 359–368.CrossRefGoogle Scholar
Carey, S. W., 1954. The Rheid Concept in Geotectonics. Journ. Geol. Soc. Aust., 1, 67–117.CrossRefGoogle Scholar
Sitter, L. U. De, 1956. Structural Geology, New York.Google Scholar
Eshbach, O. W., 1952. Handbook of Engineering Fundamentals. New York.Google Scholar
Holland, C. H., 1959. On Convolute Bedding in the Lower Ludlovian Rocks of North–East Radnorshire. Geol. Mag., xcvi, 230–236.CrossRefGoogle Scholar
Kuenen, Ph. H., 1953. Graded Bedding with observations on Lower Palaeozoic Rocks of Britain. Verh. Kon. Ned. Akad. v. Wet. afd. Nat., xx, 1–47.Google Scholar
Ongley, and Macpherson, in Hills, E. S., 1940. Outlines of Structural Geology. London.Google Scholar
Rich, J. L., 1950. Flow Markings, Groovings, and Intrastratal Crumplings as Criteria for Recognition of Slope Deposits, with Illustrations from Silurian Rocks of Wales. Bull. Amer. Assoc. Petrol. Geol., 34, 717–741.Google Scholar
Haaf, F. Ten, 1956. Significance of Convolute Lamination. Geol. en Mijnb, xviii, 188–194.Google Scholar
Terzaghi, K. and Peck, R. B., 1948. Soil Mechanics in Engineering Practice. New York.Google Scholar
Williams, E., 1959. The Sedimentary Structures of the Upper Scamander Sequence and their Significance. Pap. Proc. Roy. Soc. Tas., 93, 29–32.Google Scholar
Yoder, E. J. in Schultz, J. R. and Cleaves, A. B., 1955. Geology in Engineering. New York.Google Scholar