A multi-disciplinary study of the origin and glaciological significance of the Woore Moraine, Shropshire, and implications for the south-western sector of the British-Irish Ice Sheet

Parkes, Aidan A.

doi:10.1016/j.quaint.2012.08.1130

Cited by 1 publication

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“…Discrete reflectors within the core are interpreted as thrusts, based on a trench section excavated across the site where one of these features approaches the surface. This trench shows glacial diamicton thrust over fluvioglacial sands (Parkes, 2010). These deeper structures are northward-dipping on the south flank, fore-thrusting relative to the assumed direction of former ice-flow bulldozing, and southward-dipping, back-thrusting, on the north.…”

Section: Results and Interpretationmentioning

confidence: 99%

Geophysical surveying to determine the structure and origin of the Woore Moraine, Shropshire, UK

2013

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The Woore Moraine, situated within the Cheshire Plain, is one of the largest glacial landforms in Britain. However, its key characteristics, internal structure and glaciological significance are poorly understood due to limited exposure of its key geological features. This paper focuses on the results of a suite of complementary geophysical techniques (ground-penetrating radar, electrical resistivity tomography and seismic refraction) that were used to image the interior structure of the moraine and help determine its origin. Geophysical imaging reveals a two-layer moraine structure comprising a thin and heterogeneous carapace of intercalated sediments overlying a core of subglacial clay-rich diamicton and proglacial sands deformed by a series of fore- and back-thrusts. These features indicate that the moraine is glaciotectonic in origin, involving initial compression of proglacial sediments against a bedrock obstruction and subsequent modification due to overriding.

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Section: Results and Interpretationmentioning

confidence: 99%