IGB

Connexion

(Article of book - 1982)

Document title

Talus relicts in deserts: a key to major climatic fluctuations in Research contributions to the physical geography of Israel. Studies in fluvial and coastal geomorphology of arid and mediterranean regions.

Authors(s) and Affiliation(s)

GERSON R. ;

Abstract

Two modes of escarpment retreat, determined by prevailing climate, are characteristic of arid regions: (1) Under mildly arid to semiarid conditions, continuous talus aprons are formed, maintained and recede due to debris flow and wash. (2) Under arid to extremely arid conditions, erosion, wash and gullying predominate| talus stripping is relatively fast. Sequences of "flatiron" like talus relicts found in hot deserts under various lithostructural conditions may reflect major climatic changes lengthy pluvial periods and rather short interpluvial ones. Rates of scarp retreat, through repeatedly occurring cycles, are estimated to range from 10 to 60 m/10 yr depending on relief and lithostructure of any given environment.

Source

Book

ISBN : 965-270-002-9

Editor : The Weizmann Science Press of Israel, Jerusalem - ISRAEL (1982)

Millesime : 1982 [pp. 79-88]

Bibliographic references : 33 réf.

Language

Anglais

Localisation

Bibliothèque du centre de géographie - Paris

Refdoc record number (ud2m) : 12361411 : Permanent link - XML version
Powered by Pxxo