Controls on Preservation of Fluvial Cross Strata in the Deposition-dominated Regime

Migrating bedforms (ripples, dunes) in rivers are preserved as cross-stratified sedimentary structures—fluvial cross strata— that are abundant in the rock record on Earth and Mars. Our understanding of bedform preservation is largely based on steady-state flow conditions, which rarely occur in rivers. In natural rivers, multiple scales of bedforms evolve simultaneously (e.g., dunes, bars) leading to spatially-varying flow conditions; however, our understanding of the influence of co-evolution of multiple bedform scales on preservation of cross strata is limited. To address this, we simulated multi-scale bedform evolution in an experimental channel and characterized the controls on cross-strata preservation under deposition-dominated conditions.  The data herein accompanies the manuscript “Controls on Preservation of Fluvial Cross-strata in the Deposition-dominated Regime ” by Debsmita Das, Vamsi Ganti, and Arjan Reesink. In this manuscript, we conducted a physical flume experiment of s..., , , # Controls on Preservation of Fluvial Cross Strata in the Deposition-dominated Regime [https://doi.org/10.5061/dryad.r2280gbmd](https://doi.org/10.5061/dryad.r2280gbmd) The data folder consists of 800 scans of bed topography, raw and filtered, over the study section collected over 300 hours as .mat files. ## Description of the data and file structure ### `Scan.mat` This mat file contains three variables: * *X* -vector representing coordinates in the longitudinal or downstream direction along the study section going from 1 to 4501 mm. * *Y* -vector representing coordinates in the lateral or cross-stream direction along the study section going from 1 to 751 mm. * *Z* - 2-dimensional matrix containing bed elevation scans used for computing bedform geometry and kinematics, and constructing cross-strata. Within Z, the first and second dimensions indicate represent bed elevation in longitudinal and lateral directions, respectively. All those .mat files have been zipped together into t...