Abstract

A detailed analysis of depression spatial distribution on the parts of the Western Highland Rim and Pennyroyal Plain underlain by the St. Louis and Ste. Genevieve Limestones indicates the presence of a depression infrastructure. The major geomorphic elements of the infrastructure include depression density (no./km2), doline swallet order, and interdoline spacing. A multigenerational diffusion and competition process model best explained: (1) the presence of two lognormally distibuted depression density subpopulations; (2) discrete, clustered depression sets containing second-order swallet dolines surrounded by first-order swallet depressions; (3) geomorphic competition between adjacent second-order swallet dolines for runoff and catchment area; and (4) a positive correlation between interdoline rim spacings of the small swallet order and the sum of their respective major axial lengths.

First Page Preview

First page PDF preview
You do not currently have access to this article.