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Carbon isotope stratigraphy: a tool for basin to carbonate platform correlation
Author(s) -
Ferreri V.,
Weissert H.,
D'Argenio B.,
Buonocunto F. P.
Publication year - 1997
Publication title -
terra nova
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.353
H-Index - 89
eISSN - 1365-3121
pISSN - 0954-4879
DOI - 10.1111/j.1365-3121.1997.tb00002.x
Subject(s) - stratigraphy , geology , carbonate , aptian , isotopes of carbon , cretaceous , paleontology , carbonate platform , biostratigraphy , chemostratigraphy , sequence stratigraphy , isotope , stable isotope ratio , pelagic sediment , pelagic zone , structural basin , sedimentary depositional environment , sedimentary rock , oceanography , chemistry , physics , organic chemistry , quantum mechanics , tectonics
The Early Cretaceous carbonate carbon isotope stratigraphy established in pelagic limestones is marked by several pronounced excursions towards positive δ 13 C values. We investigated a biostratigraphically and palaeomagnetically calibrated Aptian section to see whether C isotope stratigraphy could be recognized in shallow‐water carbonates. The chosen carbonate platform sections are located in southern Italy and have been dated by biostratigraphy. Bulk samples, chosen from the Barremian‐Albian part of the sequence, were analysed for their O and C isotope compositions. The C isotope curve established shows two major positive excursions which can be correlated with the synchronous and globally recognized Aptian C isotope events. The data provide evidence that C isotope stratigraphy can be used as a powerful correlation tool between pelagic and shallow‐water limestone sequences.