Sedimentation style of a Pleistocene kame terrace from the Western Sudety Mountains, S Poland

What is it about?

The presence of deep channels in a braided river system in Janowice Wielkie (Sudety mountain) indicates that the conditions were uncommon: a braided-river system confined by the ice margin at one side and by a steep mountain slope format the other side. Similar deep channels occur in “pool deposits produced at the junction of channels” in gravelly braided-river systems (Siegenthaler & Huggenberger, 1993), but the existence of a 200 m wide channel junction is rather questionable. The shallow, trough-like pools were rather produced by a high-energy current with a large erosive capacity. The bottoms of the troughs were locally washed-out and the resulting pools were filled with poorly-sorted sediment when the velocity of the braided streams diminished.

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