Geology Site Account
A-Z Geological Site Index
Gerpins Pit, Rainham, RAINHAM, London Borough of Havering, TQ555840, Historical site only
Site category: Palaeolithic site
Summary Former pit that has provided information about the underlying geology and Palaeolithic archaeology. Any further significant excavations in the area should be recorded. ----------------------------------------------------------------- Site description The great spread of Corbets Tey Gravel between Upminster and Grays, part of the Lynch Hill/Corbets Tey terrace of the Thames, rests on London Clay bedrock and has been extensively worked in numerous gravel pits. Finds of Palaeolithic hand-axes indicate that early Neanderthal hunters were living here, on the banks of a much larger Thames, when the gravel was deposited about 300,000 years ago (Marine Isotope Stages 10-8). Gerpins Pit, for example, east of Gerpins Farm, has yielded at least eight flint hand-axes.
Of particular interest at Gerpins Pit is an old record of organic deposits containing wood. This information comes from a sketch, made in 1936-7 which shows eight metres of sand above submerged trees. This may be a channel within the Corbets Tey Gravel which was filled with plant material during a later interglacial stage.
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Reference: Wymer 1985 (p.289), Bridgland 1994 (p.227).
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