Figure 4
The diagram shows a north—south stratigraphic correlation of the RTU, the SF, and the GHS along the rover's traverse path. These three rock units were deposited in Lake Kansava over the erosion surface of the northern flank of Mt. Sharp (see Fig. 2). The graph also shows rock units that formed during the 5 phases of the aqueous episode we studied. They are as follow in the chronological order from the oldest to the youngest. (1) The HPU and the SU were deposited by giant floods during the inception phase of the aqueous episode prior to the establishment of the Lake Kansava8. (2) The SFb and GHS were deposited during the lake-level rise phase under the influence of powerful storm waves. (3) the GHSt, the SFt, and the DM were deposited during the lake-level highstand phase by strong bottom currents. (4) The MRM was deposited as debris flows during the lake-level fall. (5) The BM was deposited by suspension in calm waters of the lake during the desiccation phase of the lake. Symbols for lithologies and sedimentary structures are: 1: Conglomerate. 2: Conglomerate with flat-pebble orientation. 3: Coarse- to medium-grained sandstone. 4: Fine-grained sandstone to siltstone. 5: Laminations. 6: Trough cross-beds. 7: Cross bed bundles. 8: Large cross beds. 9: Lens-shaped packages of cross bedded layers.
