Calcareous nannofossils of ODP Sites 149-897 and 149-901
Mesozoic calcareous nannofossil assemblages recovered during Ocean Drilling Program Leg 149 from the Iberia Abyssal Plain off the coast of Portugal were examined to determine the age of the rifting processes that affected the western Iberia Margin. Dark carbonaceous claystones (black shales) recover...
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1996
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.761364 2023-05-15T17:33:42+02:00 Calcareous nannofossils of ODP Sites 149-897 and 149-901 de Kaenel, Eric P Bergen, James A MEDIAN LATITUDE: 40.781075 * MEDIAN LONGITUDE: -12.069150 * SOUTH-BOUND LATITUDE: 40.674600 * WEST-BOUND LONGITUDE: -12.475200 * NORTH-BOUND LATITUDE: 40.838800 * EAST-BOUND LONGITUDE: -11.059700 * DATE/TIME START: 1993-04-02T04:00:00 * DATE/TIME END: 1993-05-24T13:10:00 1996-06-01 application/zip, 4 datasets https://doi.pangaea.de/10.1594/PANGAEA.761364 https://doi.org/10.1594/PANGAEA.761364 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.761364 https://doi.org/10.1594/PANGAEA.761364 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: de Kaenel, Eric P; Bergen, James A (1996): Mesozoic Calcareous Nannofossil Biostratigraphy from Sites 897, 899, and 901, Iberia Abyssal Plain: New Biostratigraphic Evidence. In: Whitmarsh, RB; Sawyer, DS; Klaus, A & Masson, DG (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 149, 27-59, https://doi.org/10.2973/odp.proc.sr.149.206.1996 149-897B 149-897D 149-901A DRILL Drilling/drill rig Joides Resolution Leg149 North Atlantic Ocean Ocean Drilling Program ODP Dataset 1996 ftpangaea https://doi.org/10.1594/PANGAEA.761364 https://doi.org/10.2973/odp.proc.sr.149.206.1996 2023-01-20T07:32:11Z Mesozoic calcareous nannofossil assemblages recovered during Ocean Drilling Program Leg 149 from the Iberia Abyssal Plain off the coast of Portugal were examined to determine the age of the rifting processes that affected the western Iberia Margin. Dark carbonaceous claystones (black shales) recovered from Site 901 contain highly diverse and abundant Tithonian calcareous nannofossil assemblages. Careful examination and documentation of this material has extended the ranges of numerous Jurassic and Cretaceous species and detailed a significant Late Jurassic assemblage turnover observed in the calcareous nannofossil record. The Lower Cretaceous sequence consists of intervals of serpentinized peridotite intercalated between various breccias and dark claystones. With the exception of a few samples, calcareous nannofossils are few and moderately preserved. The age of nannofossils within these varied sedimentary lithologies ranges from the late Barremian to the late Aptian. Eight new species are described: Ansulasphaera covingtonii, Clepsilithus meniscus, Conusphaera sinespina, Crepidolithus parvulus, Diazomatholithus galicianus, Percivalia arata, Rotelapillus pleoseptatus, and Tranolithus incus. Also proposed are five new combinations. Dataset North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-12.475200,-11.059700,40.838800,40.674600) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
149-897B 149-897D 149-901A DRILL Drilling/drill rig Joides Resolution Leg149 North Atlantic Ocean Ocean Drilling Program ODP |
spellingShingle |
149-897B 149-897D 149-901A DRILL Drilling/drill rig Joides Resolution Leg149 North Atlantic Ocean Ocean Drilling Program ODP de Kaenel, Eric P Bergen, James A Calcareous nannofossils of ODP Sites 149-897 and 149-901 |
topic_facet |
149-897B 149-897D 149-901A DRILL Drilling/drill rig Joides Resolution Leg149 North Atlantic Ocean Ocean Drilling Program ODP |
description |
Mesozoic calcareous nannofossil assemblages recovered during Ocean Drilling Program Leg 149 from the Iberia Abyssal Plain off the coast of Portugal were examined to determine the age of the rifting processes that affected the western Iberia Margin. Dark carbonaceous claystones (black shales) recovered from Site 901 contain highly diverse and abundant Tithonian calcareous nannofossil assemblages. Careful examination and documentation of this material has extended the ranges of numerous Jurassic and Cretaceous species and detailed a significant Late Jurassic assemblage turnover observed in the calcareous nannofossil record. The Lower Cretaceous sequence consists of intervals of serpentinized peridotite intercalated between various breccias and dark claystones. With the exception of a few samples, calcareous nannofossils are few and moderately preserved. The age of nannofossils within these varied sedimentary lithologies ranges from the late Barremian to the late Aptian. Eight new species are described: Ansulasphaera covingtonii, Clepsilithus meniscus, Conusphaera sinespina, Crepidolithus parvulus, Diazomatholithus galicianus, Percivalia arata, Rotelapillus pleoseptatus, and Tranolithus incus. Also proposed are five new combinations. |
format |
Dataset |
author |
de Kaenel, Eric P Bergen, James A |
author_facet |
de Kaenel, Eric P Bergen, James A |
author_sort |
de Kaenel, Eric P |
title |
Calcareous nannofossils of ODP Sites 149-897 and 149-901 |
title_short |
Calcareous nannofossils of ODP Sites 149-897 and 149-901 |
title_full |
Calcareous nannofossils of ODP Sites 149-897 and 149-901 |
title_fullStr |
Calcareous nannofossils of ODP Sites 149-897 and 149-901 |
title_full_unstemmed |
Calcareous nannofossils of ODP Sites 149-897 and 149-901 |
title_sort |
calcareous nannofossils of odp sites 149-897 and 149-901 |
publisher |
PANGAEA |
publishDate |
1996 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.761364 https://doi.org/10.1594/PANGAEA.761364 |
op_coverage |
MEDIAN LATITUDE: 40.781075 * MEDIAN LONGITUDE: -12.069150 * SOUTH-BOUND LATITUDE: 40.674600 * WEST-BOUND LONGITUDE: -12.475200 * NORTH-BOUND LATITUDE: 40.838800 * EAST-BOUND LONGITUDE: -11.059700 * DATE/TIME START: 1993-04-02T04:00:00 * DATE/TIME END: 1993-05-24T13:10:00 |
long_lat |
ENVELOPE(-12.475200,-11.059700,40.838800,40.674600) |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Supplement to: de Kaenel, Eric P; Bergen, James A (1996): Mesozoic Calcareous Nannofossil Biostratigraphy from Sites 897, 899, and 901, Iberia Abyssal Plain: New Biostratigraphic Evidence. In: Whitmarsh, RB; Sawyer, DS; Klaus, A & Masson, DG (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 149, 27-59, https://doi.org/10.2973/odp.proc.sr.149.206.1996 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.761364 https://doi.org/10.1594/PANGAEA.761364 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.761364 https://doi.org/10.2973/odp.proc.sr.149.206.1996 |
_version_ |
1766132293855870976 |