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Published online by Cambridge University Press: 01 May 2009
A collection of erratics from the Boulder Clay and associated remanie drift of the Nene Valley includes distinctive sedimentary, igneous, pyroclastic, and metamorphic rocks. Localities are suggested from which these may have originated and it is concluded that the Upper Chalky Boulder Clay was brought by ice moving from a direction west of north.
Communicated with the permission of the Director of the Geological Survey and Museum.