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dc.contributor.author Ashmore, Patrick
dc.contributor.author Brayshay, B. A.
dc.contributor.author Edwards, Keith J.
dc.contributor.author Gilbertson, D.
dc.contributor.author Grattan, John
dc.contributor.author Kent, Martin
dc.contributor.author Pratt, Kathryn
dc.contributor.author Weaver, Ruth
dc.date.accessioned 2006-08-07T19:18:28Z
dc.date.available 2006-08-07T19:18:28Z
dc.date.issued 2000
dc.identifier.citation Ashmore , P , Brayshay , B A , Edwards , K J , Gilbertson , D , Grattan , J , Kent , M , Pratt , K & Weaver , R 2000 , ' Allochthonous and autochthonous mire deposits, slope instability and palaeoenvironmental investigations in the Borve Valley, Barra, Outer Hebrides, Scotland ' The Holocene , vol 10 , no. 1 , pp. 97-108 . , 10.1191/095968300676239809 en
dc.identifier.issn 1477-0911
dc.identifier.other PURE: 69934
dc.identifier.other dspace: 2160/223
dc.identifier.uri http://hdl.handle.net/2160/223
dc.identifier.uri http://hol.sagepub.com/ en
dc.description Ashmore, P. Brayshay, B.A Edwards, K.J Gilbertson, D. Grattan, J. Kent, M. Pratt, K. Weaver, R. 'Allochthonous and autochthonous mire deposits, slope instability and palaeoenvironmental investigations in the Borve Valley, Barra, Outer Hebrides, Scotland' The Holocene 2000 10, 1 pp.97-108 en
dc.description.abstract This paper suggests that sediment depth-age anomalies, and the lithological and palaeoecological properties of a peat core from Borve mire on the Outer Hebridean island of Barra, reflect the episodic impacts of rapid mass-movement of superficial peats and mineral soils from the adjacent hillslopes in the period 3000 to 1750 14C years BP. Alternative explanations such as mismeasurement of radiocarbon or contamination by floods, are thought less likely. The research implies that there is a general need for caution in the interpretation of mire deposits from sites which are adjacent to steep peat-covered hillslopes and which have not been investigated with the support of substantial radiocarbon and lithological studies programmes. The environmental and vegetational history of this exposed and isolated Atlantic island is shown to have not been one of treeless homogeneity. A variety of deciduous and coniferous tree species colonized early in the Holocene, with distinctive birch-hazel woodland developing at one point in time. The landscape became increasingly treeless in the Bronze Age, with most but not all trees having been lost by the Medieval period. Valley side peats provide palynological evidence of pastoral and arable farming on poor soils in the Dark Age-Early Medieval period, at sites beyond the present limits of cultivation. en
dc.format.extent 12 en
dc.language.iso eng
dc.relation.ispartof The Holocene en
dc.title Allochthonous and autochthonous mire deposits, slope instability and palaeoenvironmental investigations in the Borve Valley, Barra, Outer Hebrides, Scotland en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1191/095968300676239809
dc.contributor.institution Registry en
dc.contributor.institution Institute of Geography & Earth Sciences en
dc.contributor.institution Quaternary Environmental Change Group en
dc.description.status Peer reviewed en


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