The slope deposits in the Nant Iago valley, near Cader Idris, Wales
DOI:
https://doi.org/10.26485/BP/1969/18/9Keywords:
solifluction, slopewash, pebbles orientation, late WürmAbstract
The rapid deepening of a small tributary valley has exposed a sequence which occurs elsewhere in drift terraces in the upland valleys of Mid-Wales. The beds are interpreted as slope deposits formed by solifluction and slopewash because the bedding and the long axes of the included stones are parallel to the slope. The imbrication of the interbedded gravels also indicates deposition by water flowing down the slope. such an origin is in agreemen:t with the topography; the terrace is developed on the north-fadng side of the valley only. The sequence, which may be compared with that of the screes in the same area, may represent the deposits of the later Würm.
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