caa a22 4500 386384851 CHVBK 20180307112055.0 cr unu---uuuuu 161130s1989 xx s 000 0 eng 10.1017/S0263593300012244 doi S0263593300012244 pii (NATIONALLICENCE)cambridge-10.1017/S0263593300012244 Late Holocene debris cone evolution in Glen Feshie, western Cairngorm Mountains, Scotland [Elektronische Daten] Recent river erosion of three coalescing debris cones in Glen Feshie has exposed a complex sequence of debris flow units. Radiocarbon dating of organic matter from interbedded buried soils reveals that the soil at the base of the sequence was buried at c. 2000 yr BP, but that the bulk of the cones accumulated since the fifteenth century AD. The episodic nature of cone development is attributable to lateral migration of the River Feshie, with periods of cone accumulation when the river occupied the far side of its floodplain alternating with periods of erosion when the river impinged on the cones. There is no evidence to suggest that recent cone accumulation is related to anthropogenic vegetation disturbance, but phases of cone accumulation show a broad temporal correspondence with periods of Late Holocene climatic deterioration. The cones are essentially paraglacial in that their continuing accumulation depends on a supply of sediment derived from glacial and periglacial deposits upslope. The form of debris-flow units indicates that flows at this site were less viscous than most ‘hillslope' flows, and cone volumes indicate an average annual accumulation of c. 50-60 m3 of sediment over the past c. 300years. Copyright © Royal Society of Edinburgh 1989 Climatic deterioration nationallicence debris flows nationallicence denudation rates nationallicence paraglacial nationallicence radiocarbon dating nationallicence Brazier Vanessa Vanessa Brazier, Department of Geography, University of Canterbury, Christchurch, New Zealand. Ballantyne Colin K. Colin K. Ballantyne, Department of Geography and Geology, University of St. Andrews, St. Andrews, Fife KY16 9AL, Scotland, U.K. Transactions of the Royal Society of Edinburgh: Earth Sciences Royal Society of Edinburgh Scotland Foundation 80/1(1989), 17-24 0263-5933 80:1<17 1989 80 TRE https://doi.org/10.1017/S0263593300012244 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0263593300012244 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Brazier Vanessa Vanessa Brazier, Department of Geography, University of Canterbury, Christchurch, New Zealand NATIONALLICENCE 700 1- Ballantyne Colin K. Colin K. Ballantyne, Department of Geography and Geology, University of St. Andrews, St. Andrews, Fife KY16 9AL, Scotland, U.K NATIONALLICENCE 773 0- Transactions of the Royal Society of Edinburgh: Earth Sciences Royal Society of Edinburgh Scotland Foundation 80/1(1989), 17-24 0263-5933 80:1<17 1989 80 TRE CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge