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Chironomid‐based Lateglacial climatic reconstruction for southeast Scotland
Author(s) -
BROOKS STEPHEN J.,
MAYLE FRANCIS E.,
LOWE JOHN J.
Publication year - 1997
Publication title -
journal of quaternary science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.142
H-Index - 94
eISSN - 1099-1417
pISSN - 0267-8179
DOI - 10.1002/(sici)1099-1417(199703/04)12:2<161::aid-jqs303>3.0.co;2-t
Subject(s) - stadial , younger dryas , deglaciation , geology , tundra , pollen , physical geography , vegetation (pathology) , glacial period , ecology , paleontology , geography , oceanography , arctic , medicine , pathology , biology
This paper presents the first chironomid‐based climatic reconstruction for the UK Lateglacial, obtained from a lake basin in southeast Scotland, Whitrig Bog. Comparison of chironomid, lithological, geochemical, and pollen data reveals a marked vegetation lag behind the warming following deglaciation; warm‐water chironomid taxa (e.g. chironomus ) had replaced cold‐water chironomid taxa (e.g. Paracladius ) prior to the arrival of shrubs and trees and when local soils were still poorly developed. In addition to clear evidence for the Younger Dryas Stadial, chironomid data also reveal two short‐term cold episodes that punctuate the Lateglacial Interstadial, both of which are also reflected in pollen and lithological data as reversals from open birch scrub/woodland to open herbaceous tundra coinciding with inwash of minerogenic matter into the basin. © 1997 John Wiley & Sons, Ltd.