Deltaic sedimentation in a rift valley lake: new seismic reflection data from Lake Malawi (Nyasa), East Africa

C. A. Scholz, T. C. Johnson, J. W. McGill

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

Gross variations appear to be controlled by tectonic-setting. Border-fault margin and accommodation-zone margin deltas have steeply sloping depositional surfaces, acoustic signatures dominated by chaotic seismic facies, and an overall aggradational character. Shoaling margin deltas that are opposite the main border faults and axial-margin deltas that parallel the rift axis have slopes generally <1°, are dominated by continuous reflections, and display distinctive progradational character. Lake-level fluctuations on the order of hundreds of metres have severely modified each delta. -from Authors

Original languageEnglish (US)
Pages (from-to)395-398
Number of pages4
JournalGeology
Volume21
Issue number5
DOIs
StatePublished - Jan 1 1993
Externally publishedYes

ASJC Scopus subject areas

  • Geology

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