Constructive waterfalls

  • The excavation of valleys by waterfalls is one of the best known and most effective processes by which rivers cut down the surface of the earth. The influence of waterfalls is usually regarded as solely destructive, and as always helping to lower the land. They undermine and cut backward the rock faces over which they fall : by this recession they excavate deep gorges ; and the existence of these gorges enables the adjacent country to be lowered to the level of the valIey floors. The waterfalls, moreover, empty any lakes they rnay reach in their retreat, while the ravines below the falls may drain the springs and thus desiccate the neighbouring hihlands. Observations in various countries had suggested to me that waterfalls may sometimes be constructive in stead of destructive, and that they may reserse their usual procedure, advancing instead of retreating, filling valleys instead of excavating them, and forrning alluvial plains and lakes instead of destroying them. The best illustrations I have seen of such advancing, constructive waterfalls are on some rivers of Dalmatia and Bosnia, where they occur in various stages of development. ...

Download full text files

Export metadata

Additional Services

Share in Twitter Search Google Scholar
Author:John Walter Gregory
Parent Title (German):Scottish geographical magazine
Document Type:Article
Date of Publication (online):2007/08/24
Year of first Publication:1911
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2007/08/24
GND Keyword:Wasserfall
First Page:537
Last Page:546
John Walter Gregory (* 27. Januar 1864 in Schottland; † 2. Juni 1932 in Peru) ; Signatur: Zs 1679 ; ISSN : 0036-9225
Source:In: Scottish geographical magazine, 27, S. 537-546
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 55 Geowissenschaften, Geologie / 550 Geowissenschaften
Licence (German):License LogoDeutsches Urheberrecht