Shore-zone sedimentation and facies in a closed rift lake: the Holocene beach deposits of Lake Bogoria, Kenya

R. W. Renaut, R Bernhart OWEN

Research output: Chapter in book/report/conference proceedingChapterpeer-review

45 Citations (Scopus)

Abstract

Small beach bars, spits, and barriers, composed predominantly of coarse sand, granules, and pebbles, are present along much of the modern shoreline of Lake Bogoria, a perennial saline, alkaline lake in the Kenya Rift Valley. Study of their distribution and composition indicates that most of the sediments are derived from peripheral fan-deltas, including material brought down in flood, and that derived by erosion of older exposed fan-delta sediments. Much of the sediment is redistributed by longshore currents, induced by winds funnelled along the axis of the lake. Surrounding the lake, a series of regressive littoral terraces, composed of angular gravels, record shoreline sedimentation associated with former higher lake levels during the Holocene. During terrace formation, many fan-delta platforms were drowned and shoaling effects reduced, thereby increasing wave energy around much of the shoreline. The terraces record a complex history of Holocene lake-level fluctuations. -from Authors

Original languageEnglish
Title of host publicationLacustrine Facies Analysis
PublisherWiley-VCH
Pages175-195
Number of pages21
ISBN (Electronic)9781444303919
ISBN (Print)9780632031498
DOIs
Publication statusPublished - 1991

Scopus Subject Areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

Fingerprint

Dive into the research topics of 'Shore-zone sedimentation and facies in a closed rift lake: the Holocene beach deposits of Lake Bogoria, Kenya'. Together they form a unique fingerprint.

Cite this