Palynological analyses of the sediments around the Miocene/Pliocene boundary in ODP Hole 151-911A, supplement to: Grøsfjeld, Kari; De Schepper, Stijn; Fabian, Karl; Husum, Katrine; Baranwal, Soma; Andreassen, Karin; Knies, Jochen (2014): Dating and palaeoenvironmental reconstruction of the sediments around the Miocene/Pliocene boundary in Yermak Plateau ODP Hole 911A using marine palynology. Palaeogeography, Palaeoclimatology, Palaeoecology, 414, 382-402
The late Neogene evolution of the Arctic to Subarctic region is poorly understood due to few available records and poor age control. At the margin of the Arctic Ocean, Yermak Plateau Ocean Drilling Program (ODP) Hole 911A is strategically located for establishing a stratigraphic framework for the Ar...
Main Authors: | , , , , , , |
---|---|
Format: | Dataset |
Language: | English |
Published: |
PANGAEA - Data Publisher for Earth & Environmental Science
2014
|
Subjects: | |
Online Access: | https://dx.doi.org/10.1594/pangaea.834616 https://doi.pangaea.de/10.1594/PANGAEA.834616 |
id |
ftdatacite:10.1594/pangaea.834616 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Sample code/label DEPTH, sediment/rock Laboratory code/label Dry mass Lycopodium tablets Lycopodium clavatum spores per tablet Lycopodium clavatum, standard deviation Lycopodium clavatum markers counted Achomosphaera andalousiensis andalousiensis Achomosphaera andalousiensis suttonensis Amiculosphaera umbraculum Barssidinium evangelineae Barssidinium graminosum Barssidinium pliocenicum Barssidinium spp. Bitectatodinium tepikiense Bitectatodinium raedwaldii Brigantedinium spp. Echinidinium euaxum Filisphaera filifera Filisphaera microornata Habibacysta tectata Impagidinium aculeatum Impagidinium pallidum Impagidinium patulum Impagidinium sp. Impagidinium spp. Invertocysta lacrymosa Invertocysta tabulata Lejeunecysta mariae Lejeunecysta spp. Lingulodinium machaerophorum Nematosphaeropsis labyrinthus Operculodinium centrocarpum Operculodinium? eirikianum crebrum Operculodinium? eirikianum eirikianum Operculodinium sp. Pentapharsodinium dalei Protoceratium reticulatum Selenopemphix dionaeacysta Spiniferites elongatus Spiniferites falcipedius Spiniferites spp. Sumatradinium sp. Trinovantedinium glorianum Trinovantedinium variabile Dinoflagellate cyst indeterminata Dinoflagellate cyst Number of taxa Dinoflagellate cyst per unit mass Dinoflagellate cyst, standard error Cymatiosphaera invaginata Cymatiosphaera spp. Lavradosphaera crista Lavradosphaera lucifer Acritarcha indeterminata Acritarcha Acritarcha per unit mass Acritarcha, standard error Foraminifera, linings Tasmanites Botryococcus spp. Pediastrum spp. Dinoflagellate cyst reworked Dinoflagellate cyst reworked per unit mass Dinoflagellate cyst reworked, standard error Drilling/drill rig DSDP/ODP/IODP sample designation Leg151 Joides Resolution Ocean Drilling Program ODP |
spellingShingle |
Sample code/label DEPTH, sediment/rock Laboratory code/label Dry mass Lycopodium tablets Lycopodium clavatum spores per tablet Lycopodium clavatum, standard deviation Lycopodium clavatum markers counted Achomosphaera andalousiensis andalousiensis Achomosphaera andalousiensis suttonensis Amiculosphaera umbraculum Barssidinium evangelineae Barssidinium graminosum Barssidinium pliocenicum Barssidinium spp. Bitectatodinium tepikiense Bitectatodinium raedwaldii Brigantedinium spp. Echinidinium euaxum Filisphaera filifera Filisphaera microornata Habibacysta tectata Impagidinium aculeatum Impagidinium pallidum Impagidinium patulum Impagidinium sp. Impagidinium spp. Invertocysta lacrymosa Invertocysta tabulata Lejeunecysta mariae Lejeunecysta spp. Lingulodinium machaerophorum Nematosphaeropsis labyrinthus Operculodinium centrocarpum Operculodinium? eirikianum crebrum Operculodinium? eirikianum eirikianum Operculodinium sp. Pentapharsodinium dalei Protoceratium reticulatum Selenopemphix dionaeacysta Spiniferites elongatus Spiniferites falcipedius Spiniferites spp. Sumatradinium sp. Trinovantedinium glorianum Trinovantedinium variabile Dinoflagellate cyst indeterminata Dinoflagellate cyst Number of taxa Dinoflagellate cyst per unit mass Dinoflagellate cyst, standard error Cymatiosphaera invaginata Cymatiosphaera spp. Lavradosphaera crista Lavradosphaera lucifer Acritarcha indeterminata Acritarcha Acritarcha per unit mass Acritarcha, standard error Foraminifera, linings Tasmanites Botryococcus spp. Pediastrum spp. Dinoflagellate cyst reworked Dinoflagellate cyst reworked per unit mass Dinoflagellate cyst reworked, standard error Drilling/drill rig DSDP/ODP/IODP sample designation Leg151 Joides Resolution Ocean Drilling Program ODP Grøsfjeld, Kari De Schepper, Stijn Fabian, Karl Husum, Katrine Baranwal, Soma Andreassen, Karin Knies, Jochen Palynological analyses of the sediments around the Miocene/Pliocene boundary in ODP Hole 151-911A, supplement to: Grøsfjeld, Kari; De Schepper, Stijn; Fabian, Karl; Husum, Katrine; Baranwal, Soma; Andreassen, Karin; Knies, Jochen (2014): Dating and palaeoenvironmental reconstruction of the sediments around the Miocene/Pliocene boundary in Yermak Plateau ODP Hole 911A using marine palynology. Palaeogeography, Palaeoclimatology, Palaeoecology, 414, 382-402 |
topic_facet |
Sample code/label DEPTH, sediment/rock Laboratory code/label Dry mass Lycopodium tablets Lycopodium clavatum spores per tablet Lycopodium clavatum, standard deviation Lycopodium clavatum markers counted Achomosphaera andalousiensis andalousiensis Achomosphaera andalousiensis suttonensis Amiculosphaera umbraculum Barssidinium evangelineae Barssidinium graminosum Barssidinium pliocenicum Barssidinium spp. Bitectatodinium tepikiense Bitectatodinium raedwaldii Brigantedinium spp. Echinidinium euaxum Filisphaera filifera Filisphaera microornata Habibacysta tectata Impagidinium aculeatum Impagidinium pallidum Impagidinium patulum Impagidinium sp. Impagidinium spp. Invertocysta lacrymosa Invertocysta tabulata Lejeunecysta mariae Lejeunecysta spp. Lingulodinium machaerophorum Nematosphaeropsis labyrinthus Operculodinium centrocarpum Operculodinium? eirikianum crebrum Operculodinium? eirikianum eirikianum Operculodinium sp. Pentapharsodinium dalei Protoceratium reticulatum Selenopemphix dionaeacysta Spiniferites elongatus Spiniferites falcipedius Spiniferites spp. Sumatradinium sp. Trinovantedinium glorianum Trinovantedinium variabile Dinoflagellate cyst indeterminata Dinoflagellate cyst Number of taxa Dinoflagellate cyst per unit mass Dinoflagellate cyst, standard error Cymatiosphaera invaginata Cymatiosphaera spp. Lavradosphaera crista Lavradosphaera lucifer Acritarcha indeterminata Acritarcha Acritarcha per unit mass Acritarcha, standard error Foraminifera, linings Tasmanites Botryococcus spp. Pediastrum spp. Dinoflagellate cyst reworked Dinoflagellate cyst reworked per unit mass Dinoflagellate cyst reworked, standard error Drilling/drill rig DSDP/ODP/IODP sample designation Leg151 Joides Resolution Ocean Drilling Program ODP |
description |
The late Neogene evolution of the Arctic to Subarctic region is poorly understood due to few available records and poor age control. At the margin of the Arctic Ocean, Yermak Plateau Ocean Drilling Program (ODP) Hole 911A is strategically located for establishing a stratigraphic framework for the Arctic. Here we present dinoflagellate cyst and acritarch data from 24 stratigraphic levels in the lower part (474.26-505.64 metres below the seafloor (mbsf)) of ODP Hole 911A. The marine palynomorphs indicate a latest Miocene to earliest Pliocene age (between 5.8 and 5.0 Ma) for the base of the hole based on the co-occurrence of the dinoflagellate cyst Barssidinium evangelineae and acritarch Lavradosphaera crista. Our age estimate for the sediments can possibly be further refined to 5.0-5.33 Ma based on the presence of Achomosphaera andalousiensis suttonensis, which apparently has a range restricted to the Pliocene. An age close to the Miocene/Pliocene boundary agrees with the planktonic foraminifer data. Together with recently available magnetostratigraphic data, the base of the hole is likely to be placed at ~5.2 Ma. This new chronostratigraphy is a first step towards a better understanding of the late Neogene palaeoenvironment for the Yermak Plateau and also for the wider Arctic to Subarctic region.The terrestrial and fresh water palynomorphs were most likely redistributed and/or displaced from the shelf towards deeper parts of the basin during contourite deposition under the influence of the West Spitsbergen Current. The in situ marine dinoflagellate cyst assemblage contains a mixture of cool water and thermophilic taxa, indicating sea-ice free, cool-temperate, warmer than present conditions at the Yermak Plateau. Rivers were likely the source for the freshwater influence. |
format |
Dataset |
author |
Grøsfjeld, Kari De Schepper, Stijn Fabian, Karl Husum, Katrine Baranwal, Soma Andreassen, Karin Knies, Jochen |
author_facet |
Grøsfjeld, Kari De Schepper, Stijn Fabian, Karl Husum, Katrine Baranwal, Soma Andreassen, Karin Knies, Jochen |
author_sort |
Grøsfjeld, Kari |
title |
Palynological analyses of the sediments around the Miocene/Pliocene boundary in ODP Hole 151-911A, supplement to: Grøsfjeld, Kari; De Schepper, Stijn; Fabian, Karl; Husum, Katrine; Baranwal, Soma; Andreassen, Karin; Knies, Jochen (2014): Dating and palaeoenvironmental reconstruction of the sediments around the Miocene/Pliocene boundary in Yermak Plateau ODP Hole 911A using marine palynology. Palaeogeography, Palaeoclimatology, Palaeoecology, 414, 382-402 |
title_short |
Palynological analyses of the sediments around the Miocene/Pliocene boundary in ODP Hole 151-911A, supplement to: Grøsfjeld, Kari; De Schepper, Stijn; Fabian, Karl; Husum, Katrine; Baranwal, Soma; Andreassen, Karin; Knies, Jochen (2014): Dating and palaeoenvironmental reconstruction of the sediments around the Miocene/Pliocene boundary in Yermak Plateau ODP Hole 911A using marine palynology. Palaeogeography, Palaeoclimatology, Palaeoecology, 414, 382-402 |
title_full |
Palynological analyses of the sediments around the Miocene/Pliocene boundary in ODP Hole 151-911A, supplement to: Grøsfjeld, Kari; De Schepper, Stijn; Fabian, Karl; Husum, Katrine; Baranwal, Soma; Andreassen, Karin; Knies, Jochen (2014): Dating and palaeoenvironmental reconstruction of the sediments around the Miocene/Pliocene boundary in Yermak Plateau ODP Hole 911A using marine palynology. Palaeogeography, Palaeoclimatology, Palaeoecology, 414, 382-402 |
title_fullStr |
Palynological analyses of the sediments around the Miocene/Pliocene boundary in ODP Hole 151-911A, supplement to: Grøsfjeld, Kari; De Schepper, Stijn; Fabian, Karl; Husum, Katrine; Baranwal, Soma; Andreassen, Karin; Knies, Jochen (2014): Dating and palaeoenvironmental reconstruction of the sediments around the Miocene/Pliocene boundary in Yermak Plateau ODP Hole 911A using marine palynology. Palaeogeography, Palaeoclimatology, Palaeoecology, 414, 382-402 |
title_full_unstemmed |
Palynological analyses of the sediments around the Miocene/Pliocene boundary in ODP Hole 151-911A, supplement to: Grøsfjeld, Kari; De Schepper, Stijn; Fabian, Karl; Husum, Katrine; Baranwal, Soma; Andreassen, Karin; Knies, Jochen (2014): Dating and palaeoenvironmental reconstruction of the sediments around the Miocene/Pliocene boundary in Yermak Plateau ODP Hole 911A using marine palynology. Palaeogeography, Palaeoclimatology, Palaeoecology, 414, 382-402 |
title_sort |
palynological analyses of the sediments around the miocene/pliocene boundary in odp hole 151-911a, supplement to: grøsfjeld, kari; de schepper, stijn; fabian, karl; husum, katrine; baranwal, soma; andreassen, karin; knies, jochen (2014): dating and palaeoenvironmental reconstruction of the sediments around the miocene/pliocene boundary in yermak plateau odp hole 911a using marine palynology. palaeogeography, palaeoclimatology, palaeoecology, 414, 382-402 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2014 |
url |
https://dx.doi.org/10.1594/pangaea.834616 https://doi.pangaea.de/10.1594/PANGAEA.834616 |
long_lat |
ENVELOPE(5.000,5.000,81.250,81.250) ENVELOPE(28.979,28.979,66.201,66.201) ENVELOPE(-57.769,-57.769,-63.899,-63.899) |
geographic |
Arctic Arctic Ocean Yermak Plateau Kari Andreassen |
geographic_facet |
Arctic Arctic Ocean Yermak Plateau Kari Andreassen |
genre |
Arctic Arctic Ocean Foraminifera* Sea ice Subarctic Yermak plateau Spitsbergen |
genre_facet |
Arctic Arctic Ocean Foraminifera* Sea ice Subarctic Yermak plateau Spitsbergen |
op_relation |
https://dx.doi.org/10.1016/j.palaeo.2014.08.028 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.834616 https://doi.org/10.1016/j.palaeo.2014.08.028 |
_version_ |
1766330935005937664 |
spelling |
ftdatacite:10.1594/pangaea.834616 2023-05-15T14:58:49+02:00 Palynological analyses of the sediments around the Miocene/Pliocene boundary in ODP Hole 151-911A, supplement to: Grøsfjeld, Kari; De Schepper, Stijn; Fabian, Karl; Husum, Katrine; Baranwal, Soma; Andreassen, Karin; Knies, Jochen (2014): Dating and palaeoenvironmental reconstruction of the sediments around the Miocene/Pliocene boundary in Yermak Plateau ODP Hole 911A using marine palynology. Palaeogeography, Palaeoclimatology, Palaeoecology, 414, 382-402 Grøsfjeld, Kari De Schepper, Stijn Fabian, Karl Husum, Katrine Baranwal, Soma Andreassen, Karin Knies, Jochen 2014 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.834616 https://doi.pangaea.de/10.1594/PANGAEA.834616 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1016/j.palaeo.2014.08.028 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Sample code/label DEPTH, sediment/rock Laboratory code/label Dry mass Lycopodium tablets Lycopodium clavatum spores per tablet Lycopodium clavatum, standard deviation Lycopodium clavatum markers counted Achomosphaera andalousiensis andalousiensis Achomosphaera andalousiensis suttonensis Amiculosphaera umbraculum Barssidinium evangelineae Barssidinium graminosum Barssidinium pliocenicum Barssidinium spp. Bitectatodinium tepikiense Bitectatodinium raedwaldii Brigantedinium spp. Echinidinium euaxum Filisphaera filifera Filisphaera microornata Habibacysta tectata Impagidinium aculeatum Impagidinium pallidum Impagidinium patulum Impagidinium sp. Impagidinium spp. Invertocysta lacrymosa Invertocysta tabulata Lejeunecysta mariae Lejeunecysta spp. Lingulodinium machaerophorum Nematosphaeropsis labyrinthus Operculodinium centrocarpum Operculodinium? eirikianum crebrum Operculodinium? eirikianum eirikianum Operculodinium sp. Pentapharsodinium dalei Protoceratium reticulatum Selenopemphix dionaeacysta Spiniferites elongatus Spiniferites falcipedius Spiniferites spp. Sumatradinium sp. Trinovantedinium glorianum Trinovantedinium variabile Dinoflagellate cyst indeterminata Dinoflagellate cyst Number of taxa Dinoflagellate cyst per unit mass Dinoflagellate cyst, standard error Cymatiosphaera invaginata Cymatiosphaera spp. Lavradosphaera crista Lavradosphaera lucifer Acritarcha indeterminata Acritarcha Acritarcha per unit mass Acritarcha, standard error Foraminifera, linings Tasmanites Botryococcus spp. Pediastrum spp. Dinoflagellate cyst reworked Dinoflagellate cyst reworked per unit mass Dinoflagellate cyst reworked, standard error Drilling/drill rig DSDP/ODP/IODP sample designation Leg151 Joides Resolution Ocean Drilling Program ODP Supplementary Dataset dataset Dataset 2014 ftdatacite https://doi.org/10.1594/pangaea.834616 https://doi.org/10.1016/j.palaeo.2014.08.028 2022-02-08T16:24:46Z The late Neogene evolution of the Arctic to Subarctic region is poorly understood due to few available records and poor age control. At the margin of the Arctic Ocean, Yermak Plateau Ocean Drilling Program (ODP) Hole 911A is strategically located for establishing a stratigraphic framework for the Arctic. Here we present dinoflagellate cyst and acritarch data from 24 stratigraphic levels in the lower part (474.26-505.64 metres below the seafloor (mbsf)) of ODP Hole 911A. The marine palynomorphs indicate a latest Miocene to earliest Pliocene age (between 5.8 and 5.0 Ma) for the base of the hole based on the co-occurrence of the dinoflagellate cyst Barssidinium evangelineae and acritarch Lavradosphaera crista. Our age estimate for the sediments can possibly be further refined to 5.0-5.33 Ma based on the presence of Achomosphaera andalousiensis suttonensis, which apparently has a range restricted to the Pliocene. An age close to the Miocene/Pliocene boundary agrees with the planktonic foraminifer data. Together with recently available magnetostratigraphic data, the base of the hole is likely to be placed at ~5.2 Ma. This new chronostratigraphy is a first step towards a better understanding of the late Neogene palaeoenvironment for the Yermak Plateau and also for the wider Arctic to Subarctic region.The terrestrial and fresh water palynomorphs were most likely redistributed and/or displaced from the shelf towards deeper parts of the basin during contourite deposition under the influence of the West Spitsbergen Current. The in situ marine dinoflagellate cyst assemblage contains a mixture of cool water and thermophilic taxa, indicating sea-ice free, cool-temperate, warmer than present conditions at the Yermak Plateau. Rivers were likely the source for the freshwater influence. Dataset Arctic Arctic Ocean Foraminifera* Sea ice Subarctic Yermak plateau Spitsbergen DataCite Metadata Store (German National Library of Science and Technology) Arctic Arctic Ocean Yermak Plateau ENVELOPE(5.000,5.000,81.250,81.250) Kari ENVELOPE(28.979,28.979,66.201,66.201) Andreassen ENVELOPE(-57.769,-57.769,-63.899,-63.899) |