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Geomorphological Hazards in High Mountain Areas (Paperback, Softcover reprint of the original 1st ed. 1998)
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Geomorphological Hazards in High Mountain Areas (Paperback, Softcover reprint of the original 1st ed. 1998)
Series: GeoJournal Library, 46
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On the basis of a total of thirteen case examples from the Tien
Shan, Karakorum, Himalaya and Tangula Shan (central Tibet), the
risk potential and hazards are inferred from the development of
landscape during the Quaternary. The history of glaciers can be
seen as of central importance for this. The Ice Age glacial erosion
created V-shaped valleys, which with their steep flanks - as a
consequence of the interglacial formation of V -valleys - have
prepared and brought about landslides as well as rockslides and the
hazards, combined with them. The same is true for the moraines,
which the gla ciers have deposited high-up in the valley flanks and
related loose stone deposits. Dry and wet mass movements follow
after heavy precipitation, especially in the semi-arid
investigation areas, and are catastrophes for the settlements and
the communication routes in the valley floors. Their key-forms are
debris cones and debris slopes, as well as mudflows and alluvial
fans. In addition to the Ice Age glaciation history, as a
preparatory, indirect factor, the Holocene to present glaciation
history is, as a result of the danlming-up of glacier- and moraine
lakes and their outbursts, a direct risk factor. The examples
presented of acute and already occurred cases of damage were inves
tigated in the years 1989-1994. Acknowledgements The authors wish
to thank the Deutsche Forschungsgemeinschaft (DFG), the Max
Planck-Gesellschaft (MPG), the Volkswagen-Stiftting (VW) and the
Deutscher Aka demischer Austauschdienst (DAAD) for the financial
support for the field-work."
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