Global correlation of upper Campanian-Maastrichtian successions using carbon-isotope stratigraphy; development of a new Maastrichtian timescale

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doi: 10.1127/0078-0421/2012/0016
Author(s): Voigt, Silke; Gale, Andrew S.; Jung, Claudia; Jenkyns, Hugh C.
Author Affiliation(s): Primary:
Goethe-University Frankfurt, Institute of Geosciences, Frankfurt, Germany
Other:
University of Portsmouth, United Kingdom
University of Oxford, United Kingdom
Volume Title: Newsletters on Stratigraphy
Source: Newsletters on Stratigraphy, 45(1), p.25-53. Publisher: Gebrüder Bornträger, Berlin-Stuttgart, Germany. ISSN: 0078-0421 CODEN: NLSGAO
Note: In English. 140 refs.; illus., incl. 3 tables
Summary: Carbon-isotope stratigraphy has proven to be a powerful tool in the global correlation of Cretaceous successions. Here we present new, high-resolution carbon-isotope records for the Global Boundary Stratotype Section and Point (GSSP) of the Maastrichtian stage at Tercis les Bains (France), the Bottaccione and Contessa sections at Gubbio (Italy), and the coastal sections at Norfolk (UK) to provide a global δ13C correlation between shelf-sea and oceanic sites. The new δ13C records are correlated with δ13C-stratigraphies of the boreal chalk sea (Trunch borehole, Norfolk, UK, Lägerdorf-Kronsmoor-Hemmoor section, northern Germany, Stevns-1 core, Denmark), the tropical Pacific (ODP Hole 1210B, Shatsky Rise) and the South Atlantic and Southern Ocean (DSDP Hole 525A, ODP Hole 690C) by using an assembled Gubbio δ13C record as a reference curve. The global correlation allows the identification of significant high-frequency δ13C variations that occur superimposed on prominent Campanian-Maastrichtian events, namely the Late Campanian Event (LCE), the Campanian-Maastrichtian Boundary Event (CMBE), the mid-Maastrichtian Event (MME), and the Cretaceous-Paleogene transition (KPgE). The carbon-isotope events are correlated with the geomagnetic polarity scale recalculated using the astronomical 40Ar/39Ar calibration of the Fish Canyon sanidine. This technique allows the evaluation of the relative timing of base occurrences of stratigraphic index fossils such as ammonites, planktonic foraminifera and calcareous nannofossils. Furthermore, the Campanian-Maastrichtian boundary, as defined in the stratotype at Tercis, can be precisely positioned relative to carbon-isotope stratigraphy and the geomagnetic polarity timescale. The average value for the age of the Campanian-Maastrichtian boundary is 72.1 ± 0.1 Ma, estimated by three independent approaches that utilize the Fish Canyon sanidine calibration and Option 2 of the Maastrichtian astronomical timescale. The CMBE covers a time span of 2.5 Myr and reflects changes in the global carbon cycle probably related to tectonic process rather than to glacio-eustasy. The duration of the high-frequency δ13C variations instead coincides with the frequency band of long eccentricity, indicative of orbital forcing of changes in climate and the global carbon cycle.
Year of Publication: 2012
Research Program: DSDP Deep Sea Drilling Project
IPOD International Phase of Ocean Drilling
ODP Ocean Drilling Program
Key Words: 02 Geochemistry; 12 Stratigraphy, Historical Geology and Paleoecology; Atlantic Ocean; Biostratigraphy; Bottaccione Gorge; C-13/C-12; Campanian; Carbon; Central Europe; Contessa Italy; Correlation; Cretaceous; DSDP Site 525; Deep Sea Drilling Project; Denmark; East Anglia; England; Europe; France; Germany; Great Britain; Gubbio Italy; IPOD; Isotope ratios; Isotopes; Italy; Landes France; Leg 113; Leg 198; Leg 74; Maestrichtian; Maud Rise; Mesozoic; Norfolk England; North Pacific; Northwest Pacific; ODP Site 1210; ODP Site 690; Ocean Drilling Program; Pacific Ocean; Perugia Italy; Scandinavia; Senonian; Shatsky Rise; South Atlantic; Southern Europe; Southern Ocean; Stable isotopes; Stratigraphy; Stratotypes; Succession; Tercis les Bains France; Umbria Italy; United Kingdom; Upper Campanian; Upper Cretaceous; Walvis Ridge; Weddell Sea; West Pacific; Western Europe
Record ID: 2016069729
Copyright Information: GeoRef, Copyright 2017 American Geosciences Institute. Reference includes data from Geoline, Bundesanstalt fur Geowissenschaften und Rohstoffe, Hanover, Germany

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