Lake-sediment-based evaluation of recent sediment yield from a small appalachian watershed, Thompson lake, Virginia

Auteur :
ROYALL, D.

Description :
In this study, sediments from Thompson Lake, Virginia, are used to study the last 30 years of sediment yield from the 3.8 km2 contributing catchment. Sediment yield changes at this site are found to be related primarily to precipitation history. This result as well as an established relationship between sediment magnetism and particle size allow for a simple evaluation of sediment yield frequency and magnitude. Two magnetic susceptibility peaks identified in the sediment record are hypothesized to represent discrete flood sediment strata, one resulting from hurricane Agnes in 1972.


Type de document :
Article de périodique

Source :
Physical geography, issn : 0272-3646, 2000, vol. 21, n°. 1, p. 68-88, Collation : Illustration, Références bibliographiques : 49 ref.

Date :
2000

Editeur :
Pays édition : Royaume-Uni, Abingdon, Taylor and Francis