Sedimentation in large rift lakes: example from the Middle Pleistocene - modern deposits of the Tanganyika Trough, East African Rift System

J. J. Tiercelin, M. Soreghan, A. S. Cohen, K. E. Lezzar, J. L. Bouroullec

Research output: Contribution to journalArticlepeer-review

55 Scopus citations

Abstract

The modern geomorphology of Lake Tanganyika is characterized by two main bathymetric basins, North and South, subdivided in a mosaic of seven strongly asymmetric sub-basins, which are all normally half-grabens. Sedimentation associated with border fault margins includes piedmont deposits, colluvial rockfalls, fan deltas and downslope bars, and locally, at N-S/NW-SE crossing faults, hydrothermal sediments and mineralization. Sedimentation related to axial-deep basins is mainly of autochthonous origin. Wide "sheet drape' sequences are formed by homogeneous or laminated organic-rich muds. -Authors

Original languageEnglish (US)
Pages (from-to)83-111
Number of pages29
JournalBulletin - Centre de Recherche Exploration-Production Elf-Aquitaine
Volume16
Issue number1
StatePublished - Jan 1 1992
Externally publishedYes

ASJC Scopus subject areas

  • Economic Geology

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