Figure 5. TIMS three-color composite for the entire scene, showing microcline in red, quartz in green, and oligoclase in blue. Yellow indicates a nearly equal abundance of quartz and microcline, whereas cyan is quartz plus oligoclase. Microcline, entering from the eastern fan of the Providence Mountains, appears to transported over Cottonwood and Winston Wash and incorporated into the active dunes (orange color). Oligoclase is being derived from the northern and southern alluvial fans, and in addition, occurs to a lesser extent along the Mojave River Wash-Kelso Dune transport path. The slight greenish coloration within the transport path indicates that quartz is the dominant mineral, being transported from the west. Quartz and microcline also appear to be being remobilized out of the Kelso Wash near the point where the railroad tracks and the wash diverge. It is likely that these sands are being deposited into the dunes by the prevailing easterly winds [Ramsey, et al., 1999].