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Full-Text Articles in Physical Sciences and Mathematics
Lake Magadi And The Soda Lake Cycle: A Study Of The Modern Sodium Carbonates And Of Late Pleistocene And Holocene Lacustrine Core Sediments, Emma Mcnulty
Graduate Dissertations and Theses
The Magadi Basin, Kenya, within the East African Rift Valley, contains two closed-basin alkaline lakes, Lake Magadi and Nasikie Engida that now precipitate trona (Na2CO3.NaHCO3.2H2O) and nahcolite (NaHCO3). Observations of the conditions of modern trona and nahcolite deposition in the Magadi Basin form the basis of the “soda lake cycle”. This study aims to use the sedimentary structures of the modern sodium carbonates of Lake Magadi as an analogue for similar ancient deposits around the world, including the vast trona and nahcolite deposits of the Eocene Green River Formation. Lake Magadi has been evolving since 1.08 Ma within a well-known …