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Flood and Megaflood Processes and Deposits

De
320 pages
The aim of this publication is the understanding of large floods and their impact on the Earth's surface. The major objectives are: 1) to take a second look at what constitutes a megaflood that the principle of uniformitarianism is at some loss to explain and 2) to try to determine what could happen in such large floods by analyzing those that occur in front of glaciers, in alluvial-fans and in alluvial valleys.

The products of these floods are presented in terms of sedimentary deposits, erosional features and damage to human activities.

The volume bears out the concept that sedimentological analysis can be a powerful tool, not only for reconstructing processes that have acted on ancient landscapes, but also as a technique for risk assessment of certain troubled areas. Therefore, this volume is of interest not only to sedimentologists/gemorphlogists, but also to engineers, landuse planners and anyone interested in the interrelation between humans and the environment.


If you are a member of the International Association of Sedimentologists, for purchasing details, please see: http://www.iasnet.org/publications/details.asp?code=SP32

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Preface
Megafloods
Contents
High-energy megafloods: planetary settings and sedimentary dynamics V.R. Baker
Late Quaternary catastrophic flooding in the Altai Mountains of south–central Siberia: a synoptic overview and an introduction to flood deposit sedimentology P.A. Carling, A.D. Kirkbride, S. Parnachov, P.S. Borodavko and G.W. Berger
Great Holocene floods along Jökulsá á Fjöllum, north Iceland R.B. Waitt
Glacial outwash floods
November 1996 jökulhlaup on Skeibarársandur outwash plain, Iceland Á. Snorrason, P. Jónsson, O. SigurBsson, S. Pálsson, S. Árnason , S. Víkingsson and I. Kaldal
The effects of glacier-outburst flood flow dynamics on ice-contact deposits: November 1996 jökulhlaup, Skeibarársandur, Iceland A.J. Russell and Ó. Knudsen
Formation of ice-block obstacle marks during the November 1996 glacier-outburst flood ( jökulhlaup), Skeibarársandur, southern Iceland H. Fay
A large-scale flood event in 1994 from the mid-Canterbury Plains, New Zealand, and implications for ancient fluvial deposits G.H. Browne
Alluvial-fan floods
Alluvial-fan sedimentation from a glacial-outburst flood, Lone Pine, California, and contrasts with meteorological flood deposits T.C. Blair
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Contents
Alluvial fans in the Italian Alps: sedimentary facies and processes A. Moscariello, L. Marchi, F. Maraga and G. Mortara
Analysis of terrestrial hyperconcentrated flows and their deposits M. Benvenuti and I.P. Martini
Catastrophic debris-flow deposits from an inferred landslide-dam failure, Eocene Berga Formation, eastern Pyrenees, Spain E. Saula, E.E. Mató and C. Puigdefàbregas
Alluvial valley floods
Coarse-grained flood bars formed at the confluence of two subarctic rivers affected by hydroelectric dams, Ontario, Canada S.-J. Mosher and I.P. Martini
Comparison of the flood response of a braided and a meandering river, conditioned by anthropogenic and climatic changes G. Garzón and A. Alonso
Effects of land-use and precipitation changes on floodplain sedimentation in the nineteenth and twentieth centuries (Geul River, The Netherlands) M.H. Stam
Use of remote sensing in monitoring river floods and their effects on the landscape L. Halounová
Special cases
Sedimentary traces as indicator of temporary ice-marginal channels in the Westphalian Bight, Germany J. Herget
Outlet glaciers of the Pleistocene (LGM) south Tibetan ice sheet between Cho Oyu and Shisha Pangma as potential sources of former megafloods M. Kuhle
Index