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Sentences with chronostratigraphy

C c
  • A tentative correlation with a Tethyan reference carbon-isotope curve allows the provisional application of stage-level chronostratigraphy to the Wealden Group.
  • These are set against the standard British Ordovician chronostratigraphy of Fortey et aL with the series boundaries calibrated as closely as possible to the chronometric timescale.
  • This unique succession of ammonoid assemblages allows unequivocal recognition of European substage-level chronostratigraphy across the mid-Carboniferous boundary interval in North America for the first time.
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