Small Channel-Fill Sequences in the Duchesne River Formation Near Vernal, Utah: Possible Examples of Transitions from Meandering to Braided Stream Deposits

Abstract

Small channel-fill sequences in the Duchesne River Formation (Eocene-Oligocene?) are especially well exposed between Roosevelt and Vernal, Utah, where they consist of discrete sandstone lenses set in silty claystone. Thicknesses of the channel deposits range from 5 to 10 meters. Widths are in tens of meters.