Western Tethys Early and Middle Jurassic calcareous nannofossil biostratigraphy

Jorge Ferreira; Emanuela  Mattioli; Baptiste  Sucherás-Marx; Fabienne  Giraud; L.V. Duarte; Bernard Pittet; Guillaume  Suan; Auguste Hassler; J.E. Spangenberg

doi:10.1016/j.earscirev.2019.102908

Western Tethys Early and Middle Jurassic calcareous nannofossil biostratigraphy

Jorge Ferreira, Emanuela Mattioli^* (Corresponding Author), Baptiste Sucherás-Marx, Fabienne Giraud, L.V. Duarte, Bernard Pittet, Guillaume Suan, Auguste Hassler, J.E. Spangenberg

^*Corresponding author for this work

Archaeology

Research output: Contribution to journal › Article › peer-review

46 Citations (Scopus)

Abstract

An exhaustive biostratigraphic study based on the calcareous nannofossil content from Lower and Middle Jurassic Lusitanian Basin sections in Portugal is here presented. Located at the strategic intersection of important Jurassic water masses during a period of drastic environmental changes, the Lusitanian Basin conveyed mixed phytoplanktonic communities in its surface waters. Approximately 800 m of exceptionally continuous Lower and Middle Jurassic series bearing detailed ammonite biostratigraphy and two Global Stratotype Section and Point are studied. Vertical and lateral ubiquity of calcareous nannofossils in marine sediments and rapid evolutionary rate and radiation make this fossil group a remarkable biostratigraphic tool. Nearly 100 bioevents are acknowledged in ~24 Myr time span this work refers to, bridging 11 nannofossil zones and 29 subzones. A thorough revision of the existing literature referring to Early and Middle Jurassic calcareous nannofossil biostratigraphy is presented, and causes and implications for zonal marker discrepancies discussed under a palaeoceanographic and Jurassic nannofossil evolution angle. In order to create a solid biostratigraphic frame and to compare it with C and O stable isotopic trends, brachiopod calcite shells were analysed for geochemistry. This work yields for the first time a very detailed and inclusive biostratigraphic scheme for the Early and Middle Jurassic epochs.

Original language	English
Article number	102908
Number of pages	19
Journal	Earth Science Reviews
Volume	197
Early online date	2 Aug 2019
DOIs	https://doi.org/10.1016/j.earscirev.2019.102908
Publication status	Published - Oct 2019

Bibliographical note

Acknowledgements: We thank the Editor, Prof. André Strasser, and the two anonymous
reviewers for their valuable comments that allowed us to improve the
overall quality of this manuscript. Ricardo Silva is warmly acknowl-
edged for sharing his C isotope data with us. Ghislaine Broillet is
warmly thanked for her help in sample preparation. All the rock sam-
ples and slides are curated at the Collections de Géologie de Lyon, with
appropriate FSL number. The present accounts result from > 15 years
of nannofossil studies in the Lusitanian Basin. J.F., E.M., B.S.-M., and
F.G. are the authors of the nannofossil stratigraphy here presented. We
wish to thank Samuel Mailliot, Letizia Reggiani and Julien Plancq who
have published previous nannofossil data in the frame of their PhD
theses. B.P. and L.V.D. have ensured fieldwork and log drawing. G.S.,
A.H. and J.E.S. have performed stable isotope analyses. Funding was
provided by the Actions Integrées Luso-Françaises to J.F. and EM, the
project PAUILF to E.M. and L.V.D., and TelluS SYSTER to E.M.

Data Availability Statement

No data availability statement.

Keywords

Biostratigraphy
Calcareous nannofossils
Stable isotopes
Jurassic
Portugal

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.earscirev.2019.102908

Cite this

@article{90db819df64c4a8682fb2a99a7730c09,

title = "Western Tethys Early and Middle Jurassic calcareous nannofossil biostratigraphy",

abstract = "An exhaustive biostratigraphic study based on the calcareous nannofossil content from Lower and Middle Jurassic Lusitanian Basin sections in Portugal is here presented. Located at the strategic intersection of important Jurassic water masses during a period of drastic environmental changes, the Lusitanian Basin conveyed mixed phytoplanktonic communities in its surface waters. Approximately 800 m of exceptionally continuous Lower and Middle Jurassic series bearing detailed ammonite biostratigraphy and two Global Stratotype Section and Point are studied. Vertical and lateral ubiquity of calcareous nannofossils in marine sediments and rapid evolutionary rate and radiation make this fossil group a remarkable biostratigraphic tool. Nearly 100 bioevents are acknowledged in ~24 Myr time span this work refers to, bridging 11 nannofossil zones and 29 subzones. A thorough revision of the existing literature referring to Early and Middle Jurassic calcareous nannofossil biostratigraphy is presented, and causes and implications for zonal marker discrepancies discussed under a palaeoceanographic and Jurassic nannofossil evolution angle. In order to create a solid biostratigraphic frame and to compare it with C and O stable isotopic trends, brachiopod calcite shells were analysed for geochemistry. This work yields for the first time a very detailed and inclusive biostratigraphic scheme for the Early and Middle Jurassic epochs.",

keywords = "Biostratigraphy, Calcareous nannofossils, Stable isotopes, Jurassic, Portugal",

author = "Jorge Ferreira and Emanuela Mattioli and Baptiste Sucher{\'a}s-Marx and Fabienne Giraud and L.V. Duarte and Bernard Pittet and Guillaume Suan and Auguste Hassler and J.E. Spangenberg",

note = "Acknowledgements: We thank the Editor, Prof. Andr{\'e} Strasser, and the two anonymous reviewers for their valuable comments that allowed us to improve the overall quality of this manuscript. Ricardo Silva is warmly acknowl- edged for sharing his C isotope data with us. Ghislaine Broillet is warmly thanked for her help in sample preparation. All the rock sam- ples and slides are curated at the Collections de G{\'e}ologie de Lyon, with appropriate FSL number. The present accounts result from > 15 years of nannofossil studies in the Lusitanian Basin. J.F., E.M., B.S.-M., and F.G. are the authors of the nannofossil stratigraphy here presented. We wish to thank Samuel Mailliot, Letizia Reggiani and Julien Plancq who have published previous nannofossil data in the frame of their PhD theses. B.P. and L.V.D. have ensured fieldwork and log drawing. G.S., A.H. and J.E.S. have performed stable isotope analyses. Funding was provided by the Actions Integr{\'e}es Luso-Fran{\c c}aises to J.F. and EM, the project PAUILF to E.M. and L.V.D., and TelluS SYSTER to E.M.",

year = "2019",

month = oct,

doi = "10.1016/j.earscirev.2019.102908",

language = "English",

volume = "197",

journal = "Earth Science Reviews",

issn = "0012-8252",

publisher = "ELSEVIER SCIENCE BV",

}

TY - JOUR

T1 - Western Tethys Early and Middle Jurassic calcareous nannofossil biostratigraphy

AU - Ferreira, Jorge

AU - Mattioli, Emanuela

AU - Sucherás-Marx, Baptiste

AU - Giraud, Fabienne

AU - Duarte, L.V.

AU - Pittet, Bernard

AU - Suan, Guillaume

AU - Hassler, Auguste

AU - Spangenberg, J.E.

N1 - Acknowledgements: We thank the Editor, Prof. André Strasser, and the two anonymous reviewers for their valuable comments that allowed us to improve the overall quality of this manuscript. Ricardo Silva is warmly acknowl- edged for sharing his C isotope data with us. Ghislaine Broillet is warmly thanked for her help in sample preparation. All the rock sam- ples and slides are curated at the Collections de Géologie de Lyon, with appropriate FSL number. The present accounts result from > 15 years of nannofossil studies in the Lusitanian Basin. J.F., E.M., B.S.-M., and F.G. are the authors of the nannofossil stratigraphy here presented. We wish to thank Samuel Mailliot, Letizia Reggiani and Julien Plancq who have published previous nannofossil data in the frame of their PhD theses. B.P. and L.V.D. have ensured fieldwork and log drawing. G.S., A.H. and J.E.S. have performed stable isotope analyses. Funding was provided by the Actions Integrées Luso-Françaises to J.F. and EM, the project PAUILF to E.M. and L.V.D., and TelluS SYSTER to E.M.

PY - 2019/10

Y1 - 2019/10

N2 - An exhaustive biostratigraphic study based on the calcareous nannofossil content from Lower and Middle Jurassic Lusitanian Basin sections in Portugal is here presented. Located at the strategic intersection of important Jurassic water masses during a period of drastic environmental changes, the Lusitanian Basin conveyed mixed phytoplanktonic communities in its surface waters. Approximately 800 m of exceptionally continuous Lower and Middle Jurassic series bearing detailed ammonite biostratigraphy and two Global Stratotype Section and Point are studied. Vertical and lateral ubiquity of calcareous nannofossils in marine sediments and rapid evolutionary rate and radiation make this fossil group a remarkable biostratigraphic tool. Nearly 100 bioevents are acknowledged in ~24 Myr time span this work refers to, bridging 11 nannofossil zones and 29 subzones. A thorough revision of the existing literature referring to Early and Middle Jurassic calcareous nannofossil biostratigraphy is presented, and causes and implications for zonal marker discrepancies discussed under a palaeoceanographic and Jurassic nannofossil evolution angle. In order to create a solid biostratigraphic frame and to compare it with C and O stable isotopic trends, brachiopod calcite shells were analysed for geochemistry. This work yields for the first time a very detailed and inclusive biostratigraphic scheme for the Early and Middle Jurassic epochs.

AB - An exhaustive biostratigraphic study based on the calcareous nannofossil content from Lower and Middle Jurassic Lusitanian Basin sections in Portugal is here presented. Located at the strategic intersection of important Jurassic water masses during a period of drastic environmental changes, the Lusitanian Basin conveyed mixed phytoplanktonic communities in its surface waters. Approximately 800 m of exceptionally continuous Lower and Middle Jurassic series bearing detailed ammonite biostratigraphy and two Global Stratotype Section and Point are studied. Vertical and lateral ubiquity of calcareous nannofossils in marine sediments and rapid evolutionary rate and radiation make this fossil group a remarkable biostratigraphic tool. Nearly 100 bioevents are acknowledged in ~24 Myr time span this work refers to, bridging 11 nannofossil zones and 29 subzones. A thorough revision of the existing literature referring to Early and Middle Jurassic calcareous nannofossil biostratigraphy is presented, and causes and implications for zonal marker discrepancies discussed under a palaeoceanographic and Jurassic nannofossil evolution angle. In order to create a solid biostratigraphic frame and to compare it with C and O stable isotopic trends, brachiopod calcite shells were analysed for geochemistry. This work yields for the first time a very detailed and inclusive biostratigraphic scheme for the Early and Middle Jurassic epochs.

KW - Biostratigraphy

KW - Calcareous nannofossils

KW - Stable isotopes

KW - Jurassic

KW - Portugal

UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-85073640565&partnerID=MN8TOARS

U2 - 10.1016/j.earscirev.2019.102908

DO - 10.1016/j.earscirev.2019.102908

M3 - Article

SN - 0012-8252

VL - 197

JO - Earth Science Reviews

JF - Earth Science Reviews

M1 - 102908

ER -

Western Tethys Early and Middle Jurassic calcareous nannofossil biostratigraphy

Abstract

Bibliographical note

Data Availability Statement

Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this