varved clay การใช้

• The temporary support structure moved as a result of a shift in the unstable varved clay under the river.
• An isolated pile of subaerial basalt flows and associated pillow lava rest on varved clay and till in King Creek.
• Owing to this previous lake, much of the bottom of Lac Seul is covered with thick deposits of lacustrine silts and varved clay of varying thickness.
• Varve ( or " varved clay " ) is clay with visible annual layers, which are formed by seasonal deposition of those layers and are marked by differences in erosion and organic content.
• The interior basin of this feature is stiff, varved clay covered with a layer of coarse brown sand about Sub-bottom seismic profiles found that at most a maximum of of crudely stratified unconsolidated sediments overlie Ordovician limestones of the Trenton Group.