The gradient of the Okavango Fan, Botswana, and its sedimentological and tectonic implications
The water surface gradient down the axis of the wetland was measured using a differential GPS. Two discrete gradients occur: 1:5570 on the upper, confined flood plain, and 1:3400 on the lower, unconfined alluvial fan, with a slight downstream steepening of gradient on the fan. Clastic sedimentation occurs in a restricted area in the upper fan, while chemical sedimentation occurs over a wide area.
Journal of African Earth Sciences
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The gradient of the Okavango Fan_and its sedimentological and tectonic implications.pdf | 1.2 MB |