TY - JOUR
T1 - Upper Albian-upper Turonian calcareous nannofossil biostratigraphy and chemostratigraphy in the Vocontian Basin, southeastern France
AU - Gyawali, Babu Ram
AU - Nishi, Hiroshi
AU - Takashima, Reishi
AU - Herrle, Jens O.
AU - Takayanagi, Hideko
AU - Latil, Jean Louis
AU - Iryu, Yasufumi
N1 - Funding Information:
We are thankful to reviewers (Prof. F. Giraud and Prof. E. Erba) for their insightful, constructive comments and suggestions. BRG is grateful to editor-in-chief Prof. Erbacher for his valuable suggestions. We would like to thank Mr. H. Matsui for discussions during preparation of manuscript. BRG acknowledges Dr. P. Huyghe for the help during field excursion. We also thank two native-English speaking professional editors from ELSS Inc. for the language correction. This research was supported by Tohoku University International Graduate Program for Advanced Science (IGPAS). Financial support was provided by grantsin-aid from JSPS (no. 24244082 to H. Nishi and no. 25287130 to R. Takashima).
Publisher Copyright:
© 2017 The Authors.
PY - 2017
Y1 - 2017
N2 - Integrated framework of calcareous nannofossil biostratigraphy and carbon isotope stratigraphy for the upper Albian to upper Turonian succession has been made in the Vocontian Basin, southeastern France. The upper Albian-upper Turonian succession comprising 13 lithostratigraphic units was compiled from five sections (Moriez, Hyèges, Angles, Vergons, and Lambruisse) in the Vocontian Basin based on lithostratigraphic marker beds, biostratigraphy and chemostratigraphy. We recognized 11 calcareous nannofossil zones based on calcareous nannofossil assemblages. Our composite δ13C records and calcareous nannofossil bio - stratigraphy corresponds well with reference curves for upper Cretaceous successions in Europe (English Chalk, Gubbio Section, Italy) and Western Interior Seaway, USA. We clearly identified the Albian-Cenomanian and Cenomanian-Turonian stage boundaries and two black shale intervals representing Oceanic Anoxic Events; OAE1d and OAE2. We also identified both the Mid-Cenomanian Event and the Late Turonian Event. The consistency of our biostratigraphy and carbon isotope curve with global data confirms that integrated nannofossil biostratigraphy and δ13C isotope chemostratigraphy can provide an effective tool for correlation with other upper Albian to upper Turonian successions.
AB - Integrated framework of calcareous nannofossil biostratigraphy and carbon isotope stratigraphy for the upper Albian to upper Turonian succession has been made in the Vocontian Basin, southeastern France. The upper Albian-upper Turonian succession comprising 13 lithostratigraphic units was compiled from five sections (Moriez, Hyèges, Angles, Vergons, and Lambruisse) in the Vocontian Basin based on lithostratigraphic marker beds, biostratigraphy and chemostratigraphy. We recognized 11 calcareous nannofossil zones based on calcareous nannofossil assemblages. Our composite δ13C records and calcareous nannofossil bio - stratigraphy corresponds well with reference curves for upper Cretaceous successions in Europe (English Chalk, Gubbio Section, Italy) and Western Interior Seaway, USA. We clearly identified the Albian-Cenomanian and Cenomanian-Turonian stage boundaries and two black shale intervals representing Oceanic Anoxic Events; OAE1d and OAE2. We also identified both the Mid-Cenomanian Event and the Late Turonian Event. The consistency of our biostratigraphy and carbon isotope curve with global data confirms that integrated nannofossil biostratigraphy and δ13C isotope chemostratigraphy can provide an effective tool for correlation with other upper Albian to upper Turonian successions.
KW - Calcareous nannofossil
KW - Carbon isotopic record
KW - Hemipelagic sections
KW - Integrated stratigraphy
KW - Interbasin correlations
KW - Mid-Cretaceous
KW - Zones
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U2 - 10.1127/nos/2016/0339
DO - 10.1127/nos/2016/0339
M3 - Article
AN - SCOPUS:85017155749
SN - 0078-0421
VL - 50
SP - 111
EP - 139
JO - Newsletters on Stratigraphy
JF - Newsletters on Stratigraphy
IS - 2
ER -