Erosion emphasizes cross bedding - Navajo Sandstone, Zion Canyon #sedimentarygeology #dunes #Jurassic

Rex et al investigate a record of sands dating to MIS 3 and 4 in central Britain. Cooler than present climate conditions prevailed. The results suggest glacialfluvial sedimentation existed during the mid MIS 3 period, before the ice sheet advanced at about 33 kyr BP. #icesheets #paleoclimate #GlacialGeology #SedimentaryGeology https://www.sciencedirect.com/science/article/pii/S0277379122005133