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The sub-drift surface of the Mersey and Weaver catchment and adjacent areas

✍ Scribed by F. T. Howell

Publisher
John Wiley and Sons
Year
1973
Tongue
English
Weight
722 KB
Volume
8
Category
Article
ISSN
0072-1050

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Evidence from 1,450 boreholes and coastal seismic profiles adds further precision to the form of the sub‐drift channels of South Lancashire and North Cheshire. These channels resemble sub‐aerial valleys, but commonly have ungraded profiles locally reaching at least 289 ft (87 m) below O.D. In some places they are still below present sea level, 40 miles (64 km) inland. It is suggested that previous views of origin can be reconciled by considering them to be river valley Systems, partly rejuvenated by low Pleistocene sea levels, and locally modified by sub‐glacial meltwater.

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