Fig. 3: Timespan and age dependence on alluvium accumulation rates.
From: The human impact on North American erosion, sediment transfer, and storage in a geologic context
a Timespan versus rate plot for all data in the compilation (blue circles). Median rates (black circles) and associated 25–75th percentile range (gray shading) within 0.2 log timespan bins also shown. Gray dashed lines are contours of constant sediment thickness. b Timespan versus age plot. Median ages are shown as black circles, and associated 25–75th percentile range is marked by gray shading (0.2 log timespan bins). c Histogram showing data abundance in each 0.2 log timespan bin, and the range of timespan dating methods used for calculating rates. See Methods for information on these measurement methods.
