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A Miocene Gravity Slide Deposit from Eastern Timor

Published online by Cambridge University Press:  01 May 2009

M. G. Audley-Charles
Affiliation:
Department of Geology, Imperial College, London, W. 7.

Abstract

A formation composed of unbedded scaly bentonitic clay containing abundant scattered exotic blocks, boulders, pebbles, and smaller fragments is described from eastern Timor. It is proposed to call this formation the Bobonaro Scaly Clay. This formation is compared closely with the Argille scagliosa of the northern Apennines. Its origin is ascribed to submarine sliding of an unstable clay mass from the area north of Timor under the influence of gravity, closely associated with the emplacement of large overthrust slices of strata that marked a climax of the mid-Tertiary orogeny in Timor. The discovery of this formation has helped to bring about a radical revision of the published views of the stratigraphy and structure of Timor.

Type
Articles
Copyright
Copyright © Cambridge University Press 1965

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References

REFERENCES

Bailey, E. B., Collet, L. W., and Field, R. M., 1928. Paleozoic submarine landslips near Quebec City. J. Geol., 36, 577614.Google Scholar
Crowell, J. C., 1957. Origin of pebbly mudstones. Bull. geol. Soc. Amer., 68, 9931010.CrossRefGoogle Scholar
Dorreen, J. M., 1951. Rubble bedding and graded bedding in Talara formation of Northwestern Peru. Bull. Amer. Ass. Petrol. Geol., 35, 18291849.Google Scholar
Ericson, D. B., Ewing, M., and Heezen, B. C., 1952. Turbidity currents and sediments in the North Atlantic. Bull. Amer. Ass. Petrol. Geol., 36, 489511.Google Scholar
Gageonnet, R., and Lemoine, M., 1958. Contribution á la connaissance de la géologic de la province portugaise de Timor. Junta de Investigacões do Ultramar. Estud. Ens. Doc., 48.Google Scholar
Grim, R. E., 1953. Clay Mineralogy. New York.CrossRefGoogle Scholar
Grunau, H. R., 1953. Geologic von Portugiesisch Osttimor. Eine kurze Uebersicht. Ecl. geol. Helv., 46, 2937.Google Scholar
Kuenen, Ph. H., 1950. Marine Geology. New York.Google Scholar
Kuenen, Ph. H., 1956. The difference between sliding and turbidity flow. Deep-Sea Res., 3, 2, 134–9.Google Scholar
Kugler, H. G., 1953. Jurassic to recent sedimentary environments in Trinidad. Bull. Ass. Suisse des Géol. et Ing. du Pétrole, 20, 59, 2760.Google Scholar
Lugeon, M., 1916. Sur l'origine des blocks exotiques du Flysch préalpin. Ecl. geol. Helv., 14, 217221.Google Scholar
Merla, G., 1951. Geologia dell'Appennino Settentrionale. Boll. Soc. geol. Ital., 70, 95382.Google Scholar
Molengraaff, G. A. F., 1915. Geografische en geologische beschrijving van het eiland Letti. Jaarb. Mijnb. Ned. Ind., 43, 187.Google Scholar
Renz, O., Lakeman, R., and Meulen, E. Van Der, 1955. Submarine sliding in western Venezuela. Bull. Amer. Ass. Petrol. Geol., 39, 2053.Google Scholar
Umbgrove, J. H. F., 1938. Geological History of the East Indies. Bull. Amer. Ass. Petrol. Geol., 22, 170.Google Scholar
Van Bemmelen, R. W., 1949. The Geology of Indonesia. The Hague.Google Scholar
Van Der Vlerk, I. M., and Umbgrove, J. H. F., 1927. Tertiaire gidsforamini-feren van Nederlandsch Oost-Indiä. Wet. Meded. Dienst. Mijnb. Ned.—Oost-Indië, 6.Google Scholar