My first entry for the March challenge for wind-blown pathology is an intriguing interface of aeolian and fluvial processes. This spot in Mali provides a spectacular juxtaposition where the Niger River encounters an array of longitudinal dunes as it proceeds to the NE. Imagine what this system would look like in the stratigraphic record...or from scattered bore holes...yikes!
P. Kyle House, PhD., Surficial Geologic Mapping Specialist / Geomorphologist