Abstract
Major transgressive episodes, initiating prior to 3.2Myr BP, and continuing irregularly until 1.8Myr BP, resulted in important speciation events amongst several groups of lacustrine organisms. A slight increase in alkalinity and salinity is indicated for this time. About 1.8Myr BP, and important climatic shift caused widespread declines in lake levels throughout East Africa. Continual fluctuation in lake level between open and closed basin conditions have characterized the time interval from 1.8Myr BP to the present, with the most recent open lake condition having occurred about 9500 yr BP. -from Author
| Original language | English (US) |
|---|---|
| Pages (from-to) | 61-82 |
| Number of pages | 22 |
| Journal | Unknown Journal |
| State | Published - 1981 |
ASJC Scopus subject areas
- Environmental Science(all)
- Earth and Planetary Sciences(all)