Journal of the Geological Society
Journal of the Geological Society; 2007; v. 164; issue. 3;
p. 685-688; DOI: 10.1144/0016-76492006-098
© Geological Society of London
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Fig. 1. Possible correlations to the Geomagnetic Polarity Time Scale (GPTS, calibrated in millions of years) of successions at Serral in the Ebro Basin, Spain (Barbera et al. 2001) and the Isle of Wight, Hampshire Basin, UK. The first-order correlation of Barbera et al. (2001) of the MP mammal zones based on the section at Serral to the GPTS is shown. Correlation to the Isle of Wight is more problematic. Gale et al. (2006) correlated the Bembridge normal polarity zone (BNPZ) with C13n, but Hooker et al. suggest a correlation with a short normal subchron within C13r (C13.1n). Mammal evidence from Serral (presence of MP19/20 in C15n) might suggest that the Bembridge normal polarity zone is actually C15n, but supporting evidence is required of a normal magnetozone equivalent to C13n, which would be predicted to fall within the Upper Hamstead Member on the Isle of Wight. However, this solution creates numerous other problems including chron durations that differ greatly from those of the GPTS. It should be noted that the position of the Isle of Wight succession in relation to C13n given by Hooker et al. (2004, fig. 3) is entirely hypothetical, as no investigation of the magnetostratigraphy was available at the time of publication.
