Fig. 7. 100 MHz GPR profile across the SE sector of Lake Cheko (black line in the location map, bottom right). Several non-lacustrine features are evident below a thin, fine-grained sediment layer, suggesting a recent onset of lacustrine conditions. (A) abandoned river channel; (B) boundary between pre-lacustrine and lacustrine conditions; (C) shallow layer associated with lacustrine conditions; (D) large number of diffractors, internal chaotic texture and localized amplitude anomalies; (E) shallow and dipping reflectors in the lacustrine sequence and sigmoidal patterns marking accretionary processes. To download a higher resolution image click here: 724 kb.
