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Nemec, W.; Steel, R. J.; Gjelberg, J.; Collinson, J. D.; Prestholm, E.; Øxnevad, I. E.; Worsley, D. (1988)
Publisher: Co-Action Publishing
Journal: Polar Research
Languages: English
Types: Article
Subjects:
Coastal cliff exposures in the Helvetiafjellet Fm. deltaic succession near Kvalvågen on eastern Spitsbergen show spectacular evidence of syndepositional, gravity-driven deformation and resedimentation associated with delta-front instability, most probably triggered by earthquakes. This short article summarizes the results of a recent study of these features, with emphasis on the actual sequence of processes recorded in the outcrop. Detailed analysis of the structural style of the delta-front collapse and the associated sedimentation processes is presented elsewhere (Nemec et al. 1988).
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    • Catlson, P. R . & Molnia, B. F. 1977: Submarine faults and slides on the continental shelf, northern Gulf of Alaska. Marine Geotech. 2 , 275-290.
    • Coleman, J. M. & Prior, D. 9.1982: Deltdicenvironments and deposition. Pp. 139-178 in Scholle, P. A. & Spearing, D. (eds.): Sandrrone Depositional Environments. Amer. Assoc. Petrol. Geol., Tulsa.
    • Coleman, J. M., Suhayda, J. N., Whelan, T. &Wright, L. D. 1974: Mass movements of Mississippi River delta sediments. Trans. Gulf Coost Assoc. Geol. Suc. 24, 49-68.
    • Harland, W. B., Cutbill, J. L., Friend, P. F., Gohbett, D. J., Holiday, D. W., Maton, P. I., Parker, J. R. & Wallis, R. H. 1974: The Billefjorden Fault Zone, Spitsbergen. Nor. Polarinst. Skr. 164, 1-89.
    • Nagy, J . 1970: Ammonite faunas and stratigraphy of Lower Cretaceous (Albian) rocks in southern Spitsbergen. Nor. Polarinst. Skr. 152, 1-58.
    • Nemec, W., Steel, R. J., Gjelberg, J., Collinson, J. D., Prestholm, E. & 0xnevad, I. E. 1988:Anatomyof acollapsed and re-established delta front in the Lower Cretaceous of eastern Spitsbergen: gravitational sliding and sedimentation processes. Am. Ass. Petrol. Geol. Bull. 72, 454-416.
    • Parkcr, J . R. 1967: The Jurassic and Cretaceous sequence in Spitsbergen. Geol. Mag. 103, 487-505.
    • Prior, D . B. & Coleman, J . M. 1980: Sonograph mosaics of submarine slope instability, Mississippi River delta. Marine Geol. 36, 221-239.
    • Prior, D. B . & Coleman, J. M. 1982: Active slides and flows in underconsolidated marine sediments on the slopes of the Mississippi Delta. Pp. 21-49 in Saxow, S. & Nieuwenhuis, J . K. (eds.): Marine Slides and Other Mass Mouemenfs.Plenum Press, New York.
    • Prior, D. B . & Coleman, J . M. 1984: Submarine slope instability. Pp. 418-455 in Brunsden, D. &Prior, D. B. (eds.): Slope lnstabiliv. Wiley, New York.
    • Prior, D. B . , Coleman, J. M. & Garrison, L. E. 1979: Digitally acquired undistorted side scan sonar images of submarine landslides, Mississippi Delta. Geology 7, 423425.
    • Prior, D. B., Wiseman, W . J . &Bryant, W. R . 1981: Submarine chutes on the slope of fjord deltas. Nature 290, 326328.
    • Steel, R. J. & Worsley, D. 1984: Svalbard's post-Caledonian strata - an atlas of sedimentational patterns and palaeogeographic evolution. Pp. 109-135 in Spencer, A. M. (ed.): Petroleum Geology of the North European Margin. Graham and Trotman, London.
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