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Middle Pleistocene deposits at Frog Hall Pit, Stretton‐on‐Dunsmore, Warwickshire, English Midlands, and their implications for the age of the type Wolstonian
Author(s) -
Keen D. H.,
Coope G. R.,
Jones R. L.,
Field M. H.,
Griffiths H. I.,
Lewis S. G.,
Bowen D. Q.
Publication year - 1997
Publication title -
journal of quaternary science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.142
H-Index - 94
eISSN - 1099-1417
pISSN - 0267-8179
DOI - 10.1002/(sici)1099-1417(199705/06)12:3<183::aid-jqs298>3.0.co;2-q
Subject(s) - macrofossil , interglacial , geology , pleistocene , ostracod , paleontology , glacial period , isotopes of oxygen , stage (stratigraphy) , temperate climate , sensu , archaeology , holocene , geochemistry , ecology , geography , biology , genus
Organic sediment from Frog Hall Pit, near Coventry, has produced pollen, plant macrofossil, insect, ostracod and molluscan data indicative of the early part of a temperate episode in the Middle Pleistocene. The regional stratigraphy and clast lithological characteristics of the gravels underlying the temperate deposits show that the whole sequence at the site post‐dates the major glaciation (the Wolstonian sensu Mitchell et al. , 1973) of the Midlands. Amino‐acid D/L ratios from molluscan shells give mean values of 0.24, which is consistent with an age in Oxygen Isotope Stage 9 and comparable with those from the Hoxnian Interglacial of East Anglia. This age‐estimate for the Frog Hall organic deposit places a minimum age on the Wolstonian Glaciation of the Midlands in Oxygen Isotope Stage 10, and therefore close in time to the Anglian (Oxygen Isotope Stage 12) Cold Stage. © 1997 John Wiley & Sons, Ltd.