Identyfikatory
Warianty tytułu
Glaciofluvial facies of hyperconcentrated flow (the Pleistocene of Denmark and Western Pomerania)
Języki publikacji
Abstrakty
Beverage & Culbertson (1964) defined hyperconcentrated flow as a flow of water-sediment mixture with a behaviour intermediate between that of a debris flow (mudflow) and that of a stream flow. However, the essence of this definition has largely been misunderstood and lost in the subsequent literature. It would appear that almost any deposit can possibly be attributed to a hyperconcentrated flow, because this genetic label has been attached to: non-stratified deposits with normal or inverse-to-normal grading, as well as deposits that were stratified; some of these deposits had polymodal and only other bimodal grain-size distribution, occasionally bearing outsized cobble gravels and boulders. Arguably, the Beverage and Culbertson original definition implies a turbulent, non-Newtonian fluidal flow with pseudoplastic rheological behaviour, intermediate between that of a mudflow (plastic) and a stream flow (Newtonian fluid), which may suggest sediment deposition by rapid dumping from suspension (Lowe, 1988; Vrolijk & Southard, 1997), rather than tractional emplacement. The study areas in Western Pomerania and east Jutland are located in transition fan and glaciofluvial fans (Weichselian glaciation). Three assemblages of deposits derived from hyperconcentrated flow are exposed: massive cobble gravel (monofacial association GCm), massive sand (monofacial association Sm) and massive sand and planar-cross bedded sand (lithofacies association Sm, Sp). The reason for significant grain-size distribution diversity of sediments derived from the same depositional process was difference in competence flow which came out from discharge flow changes. Despite different grain framework grain-size distribution, grains within hyperconcentrated flows were mostly moved by turbulences and dispersive grain pressure.
Czasopismo
Rocznik
Tom
Strony
503--510
Opis fizyczny
bibliogr. 42 poz., rys., tab., wykr.
Twórcy
autor
- Instytut Geografii,Wydział Nauk Przyrodniczych, Uniwersytet Kazimierza Wielkiego, ul. Mińska 15, 85-428 Bydgoszcz; adres korespondencyjny: ul. Katowicka 35/28, 61-131 Poznań, pisanka@ukw.edu.pl
Bibliografia
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- BENN D.I. & EVANS D.J.A. 1998 - Glaciers and glaciation. Arnold, London.
- BENVENUTI M., MARTINI I.P. 2002 - Analysis of terrestrial hyperconcentrated flows and their deposits.[In:] Martini I.P., Baker V.R. & Garzon G. (eds) Flood and Megaflood Deposits: Recent and Ancient Examples. Special Publication of the International Association of Sedimentologists, 32: 167-193.
- BESCHTA R.L. & JACKSON W.L. 1979 - The intrusion of fine sediments into a stable gravel bed. J. Fish. Res. Board Can., 36: 204-210.
- BEVERAGE J.P. & CULBERTSON J.K. 1964 - Hyperconcentrations of suspended sediment. J. Hydraul. Division, American Society of Civil Engineers, 90: 117-128.
- BRENNAND T.A. 1994 - Macroforms, large bedforms and rhythmic sedimentary sequences in subglacial eskers, south-central Ontario - implications for eskers genesis and meltwater regime. Sediment. Geol., 91: 9-55.
- CEGŁA J. & DŻUŁYŃSKI S. 1970 - Układy niestatecznie warstwowane i ich występowanie w środowisku peryglacjalnym. Acta Univ. Wratisl. 124, Stud. geogr., 13: 17-42.
- COSTA J.E. 1984 - Physical Geomorphology of debris flow. [In:] Costa J.E. & Fleisher P.J. (eds) Developments and Applications of Geomorphology. Springer, Berlin, New-York: 268-317.
- COSTA J.E. 1988 - Rheologic, geomorphic and sedimentologic differentiation of water floods, hyperconcentrated flows and debris flows. [In:] Baker V.R., Kochel R.C. & Patton P.C. (eds) Flood Geomorphology. Wiley, New York: 113-122.
- CUTLER P.M., COLGAN P.M. & MICKELSON D.M. 2002 - Sedimentologic evidence for outburst floods from the Laurentide ice sheet margin in Wisconsin, U.S.A: implications for tunnel-channel formation. Quatern. Internat., 90: 23-40.
- FAY H. 2002 - Formation of ice block obstacle marks during the November 1996 glacier-outburst flood (jökulhlaup), Skeiðarársandur, southern Iceland. [In:] Martini I.P., Baker V.R. & Garzon G. (eds) Flood and Megaflood Deposits: Recent and Ancient Examples. Special Publication of the International Association of Sedimentologists, 32: 85-97.
- FRASER G.S. & BLEUER N.K. 1988 - Sedimentological consequences of two floods of extreme magnitude in the late Wisconsinan Wabash Valley. [In:] Clifton H.E. (ed.) Sedimentological consequences of extreme events. Geol. Soc. Am. Spec. Paper, 229: 111-125.
- FRASER G.S. & COBB J.C. 1982 - Late Wisconsian proglacial sedimentation along the west Chicago moraine in northeastern Illinois. J. Sediment. Petrol., 52: 473-491.
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- MAIZELS J.K. 1977 - Experiments on the origin of kettle holes. J. Glaciology, 18: 291-303.
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- MAIZELS J.K. 1987 - Large-scale flood deposits associate with the formation of coarse-grained braided terrace sequences, Soc. Econ. Paleont. Mineral. Spec. Publ., 39: 135-148.
- MAIZELS J.K. 1989 - Sedimentology, paleoflow dynamics and flood history of jökulhlaup deposits: paleohydrology of Holocene sediment sequences in southern Iceland sandur deposits. J. Sediment. Petrol., 59: 204-223.
- MAIZELS J.K. 1993 - Lithofacies variations within sandur deposits: the role of runoff regime, flow dynamics and sediment supply characteristic. Sediment. Geol., 85: 299-325.
- MAIZELS J.K. 1997 - Jökulhlaup deposits in proglacial areas. Quat. Sci. Rev., 16: 793-819.
- MIALL A.D. 1977 - A review of the braided river depositional environment. Earth-Sci. Rev., 13: 1-62.
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- PISARSKA-JAMROŻY M. 2006a - Transitional deposits between the end moraine and outwash plain in the Pomeranian glaciomarginal zone of NW Poland: a missing component of ice-contact sedimentary models. Boreas, 35 (1): 126-141.
- PISARSKA-JAMROŻY M. 2006b - Mechanizmy depozycji w strefie glacimarginalnej. Studium sedymentologiczne wybranych stanowisk Pomorza Zachodniego i wschodniej Jutlandii. Arch. Wydz. Nauk o Ziemi UŚ, Katowice.
- RUSSELL A.J. 1991 - The Geomorphological and Sedimentological Effects of Jökulhlaup. University of Aberdeen, Archive.
- RUSSELL A.J. & KNUDSEN, Ó. 1997 - Controls on the sedimentology of November 1996 jökulhlaup deposits, Skeiðarársandur, Iceland. [In:] Smith N.D. & Rogers J. (eds): Fluvial Sedimentology VI. International Association of Sedimentologists Special Publication Memoir 28: 315-329.
- RUSSELL A.J. & KNUDSEN Ó. 2002 - The effects of glacier outburst flood flow dynamics on ice-contact deposits: November 1996 jökulhlaup, Skeiðarársandur, Iceland. [W:] Martini I.P. Baker V.R. & Garzon G. (eds): Flood and Megaflood Deposits: Recent and Ancient Examples. Special Publication of the International Association of Sedimentologists, 32:67-83.
- RUSSELL A.J. & MARREN P.M. 1998 - A Younger Dryas (Loch Lomond Stadial) jökulhlaup deposits, Fort Augustus, Scotland. Boreas, 27: 231-242.
- RUSSELL A.J. & MARREN P.M. 1999 - Proglacial fluvial sedimentary sequence in Greenland and Iceland: a case study from active proglacial environments subject to jökulhlaup. [In:] Jones A.P., Tucker M.E. & Hart J.K. (eds) The Description and Analysis of Quaternary Stratigraphic Field Sections Technical Guide 7. Quatern. Res. Association. London: 171-208.
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- TODD S.P. 1989 - Stream-driven, high-density gravely traction carpets: possible deposits in the Traberg Conglomerate Formation, SW Ireland and some theoretical considerations of their origin. Sedimentology, 36: 513-530.
- VROLIJK P.J. & SOUTHARD J.B. 1997 - Experiments on rapid deposition of sand from high-velocity flows. Geoscience Canada, 24, 1: 45-54.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUS6-0009-0014