Universität zu Köln

Evans, David J. A., Roberts, David H., Bateman, Mark D., Ely, Jeremy, Medialdea, Alicia ORCID: 0000-0001-5895-0736, Burke, Matthew J., Chiverrell, Richard C., Clark, Chris D. and Fabel, Derek (2019). A chronology for North Sea Lobe advance and recession on the Lincolnshire and Norfolk coasts during MIS 2 and 6. Proc. Geol. Assoc., 130 (5). S. 523 - 541. OXFORD: ELSEVIER SCI LTD. ISSN 0016-7878

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Abstract

During the last (MIS 2) and older glaciations of the North Sea, a North Sea Lobe (NSL) of the British-Irish Ice Sheet flowed onshore and terminated on the lowlands of eastern England, constructing inset sequences of either substantial ice-marginal deposits and tills or only a thin till veneer, indicative of complex and highly dynamic glaciological behaviour. The glaciation limit represented by the Marsh Tills and the Stickney and Horkstow Moraines in Lincolnshire is regarded as the maximum margin of the NSL during MIS 2 and was attained at similar to 19.5 ka as determined by OSL dating of overridden lake sediments at Welton le Wold. A later ice marginal position is recorded by the Hogsthorpe-Killingholme Moraine belt, within which ice-walled lake plains indicate large scale ice stagnation rapidly followed ice advance at similar to 18.4 ka based on dates from supraglacial lake deposits. The NSL advanced onshore in North Norfolk slightly earlier constructing a moraine ridge at Garrett Hill at similar to 21.5ka. In addition to the large ice-dammed lakes in the Humber and Wash lowlands, we propose that an extensive Glacial Lake Lymn was dammed in the southern Lincolnshire Wolds by the NSL ice margin at the Stickney Moraine. Previous proposals that older glacier limits might be recorded in the region, lying between MIS 2 and MIS 12 deposits, are verified by our OSL dates on the Stiffkey moraine, which lies immediately outside the Garrett Hill moraine and appears to be of MIS 6 age. (C) 2018 The Geologists' Association. Published by Elsevier Ltd.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Evans, David J. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Roberts, David H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bateman, Mark D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ely, Jeremy UNSPECIFIED UNSPECIFIED UNSPECIFIED Medialdea, Alicia UNSPECIFIED orcid.org/0000-0001-5895-0736 UNSPECIFIED Burke, Matthew J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Chiverrell, Richard C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Clark, Chris D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Fabel, Derek UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-132275
DOI:	10.1016/j.pgeola.2018.10.004
Journal or Publication Title:	Proc. Geol. Assoc.
Volume:	130
Number:	5
Page Range:	S. 523 - 541
Date:	2019
Publisher:	ELSEVIER SCI LTD
Place of Publication:	OXFORD
ISSN:	0016-7878
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language IRISH ICE-SHEET; QUATERNARY SEDIMENTS; DEVENSIAN GLACIATION; SURGING GLACIERS; EASTERN ENGLAND; MORAINE-RIDGE; MIDDLE; BRITISH; LAKE; RETREAT Multiple languages Geology; Paleontology Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/13227