Deltaic Morphology and Sedimentology, with Special Reference to the Indus River Delta.
Abstract
The patterns of sedimentation and morphologic development of a delta result primarily from the interaction of fluvial and marine processes. Historically, the Indus River delta has formed in and arid climate under conditions of high river discharge (400 x 10 to the 6th metric tons of sediment/year), moderate tide range (2.6m), extremely high wave energy (14 x 10 to the 7th ergs/sec) and strong monsoon winds from the southwest in summer and from the northeast in the winter. The resulting sandy, lobate delta, lacking in luxuriant vegetation and dissected by numerous tial channels, has prograded seaward during the last 5000 years at an average rate of perhaps 30m/year. Morphology of the Indus Delta lies midway between that of a fluvially dominated delta (elongate, protruding distributaries) and a high energy wave dominated delta (beach beachridge, and downdrift deposits).
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1985
- Accession Number
- ADA168198
Entities
People
- James M. Coleman
- John T. Wells
Organizations
- Louisiana State University