Figure 8: Velocity-Porosity plot for a consolidated, single fining-upward cycle, corresponding to a fluvial channel-fill and the associated floodplain deposits (Figure 6). Notice the inverted V shape, as predicted from the Marion-Yin model. Black lines correspond to a combination of theoretical diagenetic trends for clean quartz sandstones with different initial porosities. Red lines correspond to theoretical depositional trends for different quartz-clay mixtures.