Tectonic Evolution of the Middle Shire Basin, South Malawi Rift

Tuesday, October 9, 2018 - 12:00pm to 1:00pm
Event Location: 
Room 4047, Natural History Building

Dr. Zuze Dulanya (Dept. of Geography and Earth Science, Chancellor College, University of Malawi)

Abstract

Landscape evolution is a complicated process responding to geological, geomorphological and climatic processes which are preserved In the geological record. Sediment archives play an important role in paleo-environmental reconstructions especially in areas where sediment preservation is good. However, in some areas where preservation is poor, use of sediment archives can be a problem. One such area as the Middle Shire area near the southern end of the Malawi Rift within the western branch of the East African Rift System. The area adjoins the NW-trending lower Shire Basin to Lake Malawi-Upper Shire Rift and is key to the understanding of geomorphotectonic processes in the latter part of the Cenozoic despite the absence of well-developed basins and sediment archives. This study is a review of the evolution of the geomorphotectonic history of the area based on integration of existing geomorphotectonic information of the southern-end of the Middle Shire basin. Results suggest that the Middle Shire section is a younger development which connected the Lower Shire to the Upper Shire section and the existence of an earlier drainage system in the lower Upper Shire section (paleo-Rivirivi) during the Plio-Pleistocene times.

 

About the speaker

Dr. Dutanya is currently Professor of Geology at the Geography and Earth Sciences Department, Chancellor College, University of Malawi. He holds degrees from University of Malawi (BSc), University of Twente, Netherlands (MSc), and University of Potsdam, Germany (PhD). His wide ranging research interests have included:
- Geophysical data integration for geological mapping of the cross-border area between Mozambique and Malawi:
- Use of multi-proxy reconstruction techniques in assessing environmental changes and their impacts on the fishery industry in the shallow lakes of Molombe and Chiula in southern Malawi;
- Understanding the Cenozoic paleo-environments of the South Malawi Rift and their influence on the biological evolution within the hominin corridor of south-eastern Africa.