Revision of the planktonic foraminiferal biostratigraphy of the Voirons Flysch (Chablais Prealps, Haute-Savoie, France)
The ages obtained from planktonic foraminiferal assemblages retrieved from two exposures in the Gurnigel Flysch and from the re-examination of similar material gathered by previous researchers from the Voirons Flysch reveal only minor discrepancies with previous studies based on nannofossil biostrat...
Published in: | Swiss Journal of Geosciences |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2018
|
Subjects: | |
Online Access: | https://archive-ouverte.unige.ch/unige:117857 |
id |
ftunivgeneve:oai:unige.ch:unige:117857 |
---|---|
record_format |
openpolar |
spelling |
ftunivgeneve:oai:unige.ch:unige:117857 2023-05-15T18:00:36+02:00 Revision of the planktonic foraminiferal biostratigraphy of the Voirons Flysch (Chablais Prealps, Haute-Savoie, France) Ragusa, Jeremy Ospina Ostios, Lina Maria Spezzaferri, Silvia Kindler, Pascal 2018 https://archive-ouverte.unige.ch/unige:117857 eng eng info:eu-repo/semantics/altIdentifier/doi/10.1007/s00015-018-0314-7 unige:117857 https://archive-ouverte.unige.ch/unige:117857 info:eu-repo/semantics/restrictedAccess ISSN: 1661-8726 Swiss Journal of Geosciences, Vol. 111, No 3 (2018) pp. 461-473 info:eu-repo/classification/ddc/550 Biostratigraphy Flysch Palaeogene Planktonic foraminifera Valais domain Voirons-Wägital complex Text info:eu-repo/semantics/article Article scientifique info:eu-repo/semantics/publishedVersion 2018 ftunivgeneve https://doi.org/10.1007/s00015-018-0314-7 2022-02-08T22:29:35Z The ages obtained from planktonic foraminiferal assemblages retrieved from two exposures in the Gurnigel Flysch and from the re-examination of similar material gathered by previous researchers from the Voirons Flysch reveal only minor discrepancies with previous studies based on nannofossil biostratigraphy. In contrast, major divergences between this work and previous studies on the Voirons Flysch also based on planktonic foraminifera have been identified. They are generally related to distinct approaches in species classification and the use of different zonal schemes. Based on our data, the age of the Voirons Flysch extends from the Early Eocene (planktonic foraminiferal zone P7) to the Middle Eocene (planktonic foraminiferal zone P12). Contrasting with claims made in earlier studies, no specimen of Late Eocene or Early Oligocene age has been observed in the revised material. However, we cannot exclude a younger age (possibly Late Eocene) for the upper portion of this flysch from which we did not revise any sample. Thus, more research and sampling are needed to resolve this question. The palaeogeographic origin of the Voirons-Wägital complex as well as the sedimentation history of these flyschs need now to be re-evaluated in light of this revised biostratigraphic data. Article in Journal/Newspaper Planktonic foraminifera Université de Genève: Archive ouverte UNIGE Swiss Journal of Geosciences 111 3 461 473 |
institution |
Open Polar |
collection |
Université de Genève: Archive ouverte UNIGE |
op_collection_id |
ftunivgeneve |
language |
English |
topic |
info:eu-repo/classification/ddc/550 Biostratigraphy Flysch Palaeogene Planktonic foraminifera Valais domain Voirons-Wägital complex |
spellingShingle |
info:eu-repo/classification/ddc/550 Biostratigraphy Flysch Palaeogene Planktonic foraminifera Valais domain Voirons-Wägital complex Ragusa, Jeremy Ospina Ostios, Lina Maria Spezzaferri, Silvia Kindler, Pascal Revision of the planktonic foraminiferal biostratigraphy of the Voirons Flysch (Chablais Prealps, Haute-Savoie, France) |
topic_facet |
info:eu-repo/classification/ddc/550 Biostratigraphy Flysch Palaeogene Planktonic foraminifera Valais domain Voirons-Wägital complex |
description |
The ages obtained from planktonic foraminiferal assemblages retrieved from two exposures in the Gurnigel Flysch and from the re-examination of similar material gathered by previous researchers from the Voirons Flysch reveal only minor discrepancies with previous studies based on nannofossil biostratigraphy. In contrast, major divergences between this work and previous studies on the Voirons Flysch also based on planktonic foraminifera have been identified. They are generally related to distinct approaches in species classification and the use of different zonal schemes. Based on our data, the age of the Voirons Flysch extends from the Early Eocene (planktonic foraminiferal zone P7) to the Middle Eocene (planktonic foraminiferal zone P12). Contrasting with claims made in earlier studies, no specimen of Late Eocene or Early Oligocene age has been observed in the revised material. However, we cannot exclude a younger age (possibly Late Eocene) for the upper portion of this flysch from which we did not revise any sample. Thus, more research and sampling are needed to resolve this question. The palaeogeographic origin of the Voirons-Wägital complex as well as the sedimentation history of these flyschs need now to be re-evaluated in light of this revised biostratigraphic data. |
format |
Article in Journal/Newspaper |
author |
Ragusa, Jeremy Ospina Ostios, Lina Maria Spezzaferri, Silvia Kindler, Pascal |
author_facet |
Ragusa, Jeremy Ospina Ostios, Lina Maria Spezzaferri, Silvia Kindler, Pascal |
author_sort |
Ragusa, Jeremy |
title |
Revision of the planktonic foraminiferal biostratigraphy of the Voirons Flysch (Chablais Prealps, Haute-Savoie, France) |
title_short |
Revision of the planktonic foraminiferal biostratigraphy of the Voirons Flysch (Chablais Prealps, Haute-Savoie, France) |
title_full |
Revision of the planktonic foraminiferal biostratigraphy of the Voirons Flysch (Chablais Prealps, Haute-Savoie, France) |
title_fullStr |
Revision of the planktonic foraminiferal biostratigraphy of the Voirons Flysch (Chablais Prealps, Haute-Savoie, France) |
title_full_unstemmed |
Revision of the planktonic foraminiferal biostratigraphy of the Voirons Flysch (Chablais Prealps, Haute-Savoie, France) |
title_sort |
revision of the planktonic foraminiferal biostratigraphy of the voirons flysch (chablais prealps, haute-savoie, france) |
publishDate |
2018 |
url |
https://archive-ouverte.unige.ch/unige:117857 |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
ISSN: 1661-8726 Swiss Journal of Geosciences, Vol. 111, No 3 (2018) pp. 461-473 |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00015-018-0314-7 unige:117857 https://archive-ouverte.unige.ch/unige:117857 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s00015-018-0314-7 |
container_title |
Swiss Journal of Geosciences |
container_volume |
111 |
container_issue |
3 |
container_start_page |
461 |
op_container_end_page |
473 |
_version_ |
1766169765103009792 |