Development of partial rock veneers by root throw in a subalpine setting

Auteurs :
OSTERKAMP, W.R.
TOY, T.J.
LENART, M.T.

Description :
Near Westcliffe, Colorado, data were collected from a transect on the east slope of the Sangre de Cristo Mountains. Ages of pit/mound complexes with rock fragments exposed at the surface by root throw ranged from recent (freshly toppled tree) to unknown (complete tree decay). Calculations based on dimensions of the pit/mound complexes, estimated time of tree topling, sizes of exposed rock fragments, and percentage rock covers at pit/mound complexes, as well as within the transect area, indicate that recent rates of root throw have resulted in only partial rock veneering since late Pleistocene deglaciation. Weathering of rock fragments prevents development of an extensive rock veneer.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2006, vol. 31, n°. 1, p. 1-14, nombre de pages : 14, Collation : Illustration, Références bibliographiques : 50 ref.

Date :
2006

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley