Palaeoenvironments of Early Miocene Kisingiri volcano Proconsul sites: Evidence from carbon isotopes, palaeosols and hydromagmatic deposits From: Journal of the Geological Society | Date: September 1, 1999| Author: Bestland, Erick A; Krull, Evelyn S | Copyright Geological Society Publishing House Sep 1999. Provided by ProQuest LLC.Copyright information

Abstract: Early Miocene (c. 18 Ma) hominoid sites (Proconsul) from Rusinga Island, Lake Victoria occur in palaeosols and volcaniclastic strata deposited in a semi-arid, seasonal climate on the flanks of the active, low-relief edifice of the Kisingiri volcano. Palaeosols interbedded with sequences of primary pyroclastic deposits have stable carbon isotope values indicative of C3 vegetation from semi-arid environments. Isotopic values of palaeosol organic matter and pedogenic carbonate from the...