Stratigraphy, geochemistry and palaeomagnetism of late quaternary bedrock and paleosols, Karisoke Area, Virunga Mountains, Northwestern Rwanda

William C. Mahaney, Ronald G. V. Hancock & René W. Barendregt
A surface soil and two buried paleosols, units II-III-IV (upper) and IV (lower)-V, provide important information on paleoclimate/drainage in the Virunga Mountains from drier to wetter paleoclimatic episodes of the last glaciation and middle postglacial periods. In general, the stratigraphy indicates a period of bedrock weathering, followed by episodic emplacement of tuffaceous sediments accompanied by weathering initially in a drier and perhaps colder paleo-environment. Later, during the last glaciation (interstadial), increased stream activity emplaced alluvium,...