犹他州Vernal附近Duchesne河组的小河道充填层序:曲流河沉积向辫状河沉积过渡的可能例子

Utah Geology Pub Date : 1900-01-01 DOI:10.34191/ug-3-1_61

T. Maxwell, M. Picard

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摘要

尤以犹他州罗斯福和Vernal之间的Duchesne河组(始新世-渐新世?)中的小河道充填层序最为明显，它们由粉质粘土岩中的离散砂岩透镜体组成。河道沉积物的厚度从5米到10米不等。宽度以几十米为单位。

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

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.

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Utah Geology

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