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Aeolian-fluvial dynamics in central Australia and the Namib Desert

Wednesday, January 28, 2004
Mary
Bourke (PSI)

Fundamental to understanding the (fluvial) paleo-environment on Mars is the accurate identification of patterns of transport and accumulation of water on the surface. This is primarily inferred from fluvial landforms. Currently, aeolian processes modify signatures of this fluvial activity on Mars. Field expeditions to central Australia and the Namib Desert examined sites where fluvial and aeolian processes have interacted at a range of scales. This interaction has served to modify and even obliterate signatures. In some cases the interaction has preserved unique paleo-climatic signatures. In this seminar I will present the analysis of data sets collected (e.g. morphometric, SEM, OSL) and illustrate a complex and rich suite of modification indices, some of which may be usefully applied to Mars.

Useful Link: Floods in the Australian Desert

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