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The Pliocene-Early Pleistocene White Channel gravels in the Klondike area are divided into nine facies, interpreted as proximal braided to distal braidplain sequences and colluvial sediment-gravity flow deposits within a confined valley setting. Results of Markov chain analysis show that the White Channel deposit shows only three well defined trends. These consist of: (1) disorganized gravel overlain by massive to crudely stratified gravel, which passes back into disorganized gravel. These facies are both poorly sorted and represent high flow, tractional bedload and/or mass flow deposition; (2) scoop-shaped crossbedded cobble-gravel overlain by trough crossbedded pebbly sand and gravel. This sequence...

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