Pseudomeandering rivers (Wolman & Brush, 1961; Hickin, 1969) or wandering rivers (Church, 1983; Ferguson & Werrity, 1983; Desloges & Church, 1987) have not been studied in as much detail as other river morphologies and hence they are not well known. In recent decades, only a few studies have been carried out on them (Wolman & Brush, 1961; Church, 1983; Ferguson & Werrity, 1983; Desloges & Church, 1987). CANCELLARE LA FRASE 2 LASCIARE LA BIBLIOGRAFIA CHE SOSTIENE LA FRASE 3. Some authors considered pseudomeandering rivers as an unstable stage of transition between braided and meandering morphologies. By this assumption, even a very small variation in the hydraulics, sediment supply or structural setting would determine a change in the channel pattern. According to this hypothesis, pseudomeandering morphology should be just an exceptional, rare case. However, modern examples of pseudomeandering rivers are very common in the Northern Apennines (Orcia R., Ombrone R., Cornia R., Albegna R., Sieve R., Arno R., Cecina R.) as they were in the Pleistocene Valdarno basin (Billi et al., 1987).
Sedimentology of a pseudomeandering river (Cecina R., central Italy)
BILLI, Paolo
1997
Abstract
Pseudomeandering rivers (Wolman & Brush, 1961; Hickin, 1969) or wandering rivers (Church, 1983; Ferguson & Werrity, 1983; Desloges & Church, 1987) have not been studied in as much detail as other river morphologies and hence they are not well known. In recent decades, only a few studies have been carried out on them (Wolman & Brush, 1961; Church, 1983; Ferguson & Werrity, 1983; Desloges & Church, 1987). CANCELLARE LA FRASE 2 LASCIARE LA BIBLIOGRAFIA CHE SOSTIENE LA FRASE 3. Some authors considered pseudomeandering rivers as an unstable stage of transition between braided and meandering morphologies. By this assumption, even a very small variation in the hydraulics, sediment supply or structural setting would determine a change in the channel pattern. According to this hypothesis, pseudomeandering morphology should be just an exceptional, rare case. However, modern examples of pseudomeandering rivers are very common in the Northern Apennines (Orcia R., Ombrone R., Cornia R., Albegna R., Sieve R., Arno R., Cecina R.) as they were in the Pleistocene Valdarno basin (Billi et al., 1987).I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
