Skip to Main Content
Morphology and sedimentation in Caribbean montane streams" examples from Jamaica and Puerto RicoAuthor(s): R. Ahmad; F.N. Scatena; A Gupta
Source: Sedimentary Geology, 85 :157-169
Publication Series: Miscellaneous Publication
PDF: View PDF (947 B)
DescriptionThis paper presents a summary description of the morphology, sedimentation, and behaviour of the montane streams of eastern Jamaica and eastern Puerto Rico. The area is located within a 200 km wide seismically active zone of Neogene left-lateral strike-slip deformation which defines the plate boundary between the Caribbean and North American Plates. Tropical storms, occasionally strengthening up to hurricane force, affect the region periodically. This is an area of steep, mass-movement-scarred hillslopes which supply a large amount of coarse sediment to the rivers. From the description presented, we have constructed a model for the rivers of this region controlled by both neotectonics and periodic large floods. The drainage density is low with a near-rectangular stream network. The gradients are steep with boulder accumulations in the channels, their location at times related to the presence of large past landslides on hillslopes. Narrow, steep and confined channels occur in the mountains, but in wider sections and lower down near coastal plains, flood depositional forms appear in coarse valley alluvium. Small-scale deviations from the general pattern occur locally, controlled by variations in lithology, neotectonism, seasonality in flow, etc. This model for Caribbean montane streams differs considerably from the standard descriptions of alluvial rivers for which a number of detailed studies are available.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationAhmad, R.; Scatena, F.N.; Gupta, A. 1993. Morphology and sedimentation in Caribbean montane streams" examples from Jamaica and Puerto Rico. Sedimentary Geology, 85 :157-169
- Large wood recruitment and redistribution in headwater streams in the southern Oregon Coast Range, U.S.A.
- Riparian indicators of flow frequency in a tropical montante stream network
- History, physical effects, and management implications of large organic debris in western Oregon streams.
XML: View XML