Keywords: Cross-bedding.gif Animated gif showing cross-bedding development from USGS http //walrus wr usgs gov/seds/ PD-USGov original upload log page en wikipedia Cross-bedding gif 2006-12-18 03 29 Vsmith 224×134×8 80137 bytes <nowiki>Animated gif showing cross-bedding development from USGS http //walrus wr usgs gov/seds/</nowiki> Cross-bedding Animated GIF |