Tidal wetting and drying on shore platforms : an experimental assessment

Auteurs :
KANYAYA, J.I.
TRENHAILE, A.S.

Description :
This paper reports on a laboratory investigation to determine the effect of alternate wetting and drying and debris removal in the intertidal zone of rocky coasts. Many of the cores experienced very little to no breakdown, particularly those from the igneous and metamorphic rocks of Ontario. Sandstones from a sloping platform in the macrotidal Bay of Fundy and argillites from a horizontal, mesotidal platform in Gaspé, Québec were the most susceptible rock types. The results suggest that downwearing rates decrease with elevation within the intertidal zone, probably beacause rocks require much longer to desorb than to absorb water.


Type de document :
Article de périodique

Source :
Geomorphology (Amsterdam), issn : 0169-555X, 2005, vol. 70, n°. 1-2, p. 129-146, nombre de pages : 18, Collation : Illustration, Références bibliographiques : 43 ref.

Date :
2005

Editeur :
Pays édition : Pays-Bas, Amsterdam, Elsevier