Cenozoic silicoflagellates and ebridians from ODP Leg 113
Silicoflagellates are present at ODP 113 Sites 689, 690, 693, 695, 696, and 697. These are generally Neogene in age except for Oligocene and Eocene silicoflagellates and ebridians at Sites 689, 690, and 693, and Lower Cretaceous (Albian) silicoflagellates at Site 693 (the latter are described in McC...
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1990
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.753479 2023-05-15T13:42:10+02:00 Cenozoic silicoflagellates and ebridians from ODP Leg 113 McCartney, Kevin Wise, Sherwood W MEDIAN LATITUDE: -64.058429 * MEDIAN LONGITUDE: -25.697500 * SOUTH-BOUND LATITUDE: -70.832000 * WEST-BOUND LONGITUDE: -43.451600 * NORTH-BOUND LATITUDE: -61.810000 * EAST-BOUND LONGITUDE: 3.099900 * DATE/TIME START: 1987-01-16T08:00:00 * DATE/TIME END: 1987-03-07T13:30:00 1990-11-12 application/zip, 7 datasets https://doi.pangaea.de/10.1594/PANGAEA.753479 https://doi.org/10.1594/PANGAEA.753479 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.753479 https://doi.org/10.1594/PANGAEA.753479 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: McCartney, Kevin; Wise, Sherwood W (1990): Cenozoic silicoflagellates and ebridians from ODP Leg 113: biostratigraphy and notes on morphologic variability. In: Barker, PF; Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113, 729-760, https://doi.org/10.2973/odp.proc.sr.113.142.1990 113-689B 113-690B 113-693A 113-695A 113-696A 113-696B 113-697B DRILL Drilling/drill rig Joides Resolution Leg113 Ocean Drilling Program ODP South Atlantic Ocean Weddell Sea Dataset 1990 ftpangaea https://doi.org/10.1594/PANGAEA.753479 https://doi.org/10.2973/odp.proc.sr.113.142.1990 2023-01-20T07:31:58Z Silicoflagellates are present at ODP 113 Sites 689, 690, 693, 695, 696, and 697. These are generally Neogene in age except for Oligocene and Eocene silicoflagellates and ebridians at Sites 689, 690, and 693, and Lower Cretaceous (Albian) silicoflagellates at Site 693 (the latter are described in McCartney, et al., this volume). The uppermost Miocenelowermost Pliocene of most sites contains an interesting assemblage of Distephanus speculum speculum that lack apical rings (the "pseudofibula plexus"). These co-occur with the youngest ice-rafted sediments deposited during the late Miocene-early Pliocene West Antarctic glaciations and are discussed in detail to show the variability within this group. We believe that these variations resulted from environmental stress, the precise nature of which is still undetermined. The "pseudofibulid" condition has developed at several different times during the Cenozoic within the Distephanus speculum lineage to produce such ecophenotypes. One new form from the "pseudofibula plexus," D. s. speculum f. pseudopentagonus, is described. Dataset Antarc* Antarctic South Atlantic Ocean Weddell Sea PANGAEA - Data Publisher for Earth & Environmental Science Antarctic Weddell Weddell Sea ENVELOPE(-43.451600,3.099900,-61.810000,-70.832000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
113-689B 113-690B 113-693A 113-695A 113-696A 113-696B 113-697B DRILL Drilling/drill rig Joides Resolution Leg113 Ocean Drilling Program ODP South Atlantic Ocean Weddell Sea |
spellingShingle |
113-689B 113-690B 113-693A 113-695A 113-696A 113-696B 113-697B DRILL Drilling/drill rig Joides Resolution Leg113 Ocean Drilling Program ODP South Atlantic Ocean Weddell Sea McCartney, Kevin Wise, Sherwood W Cenozoic silicoflagellates and ebridians from ODP Leg 113 |
topic_facet |
113-689B 113-690B 113-693A 113-695A 113-696A 113-696B 113-697B DRILL Drilling/drill rig Joides Resolution Leg113 Ocean Drilling Program ODP South Atlantic Ocean Weddell Sea |
description |
Silicoflagellates are present at ODP 113 Sites 689, 690, 693, 695, 696, and 697. These are generally Neogene in age except for Oligocene and Eocene silicoflagellates and ebridians at Sites 689, 690, and 693, and Lower Cretaceous (Albian) silicoflagellates at Site 693 (the latter are described in McCartney, et al., this volume). The uppermost Miocenelowermost Pliocene of most sites contains an interesting assemblage of Distephanus speculum speculum that lack apical rings (the "pseudofibula plexus"). These co-occur with the youngest ice-rafted sediments deposited during the late Miocene-early Pliocene West Antarctic glaciations and are discussed in detail to show the variability within this group. We believe that these variations resulted from environmental stress, the precise nature of which is still undetermined. The "pseudofibulid" condition has developed at several different times during the Cenozoic within the Distephanus speculum lineage to produce such ecophenotypes. One new form from the "pseudofibula plexus," D. s. speculum f. pseudopentagonus, is described. |
format |
Dataset |
author |
McCartney, Kevin Wise, Sherwood W |
author_facet |
McCartney, Kevin Wise, Sherwood W |
author_sort |
McCartney, Kevin |
title |
Cenozoic silicoflagellates and ebridians from ODP Leg 113 |
title_short |
Cenozoic silicoflagellates and ebridians from ODP Leg 113 |
title_full |
Cenozoic silicoflagellates and ebridians from ODP Leg 113 |
title_fullStr |
Cenozoic silicoflagellates and ebridians from ODP Leg 113 |
title_full_unstemmed |
Cenozoic silicoflagellates and ebridians from ODP Leg 113 |
title_sort |
cenozoic silicoflagellates and ebridians from odp leg 113 |
publisher |
PANGAEA |
publishDate |
1990 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.753479 https://doi.org/10.1594/PANGAEA.753479 |
op_coverage |
MEDIAN LATITUDE: -64.058429 * MEDIAN LONGITUDE: -25.697500 * SOUTH-BOUND LATITUDE: -70.832000 * WEST-BOUND LONGITUDE: -43.451600 * NORTH-BOUND LATITUDE: -61.810000 * EAST-BOUND LONGITUDE: 3.099900 * DATE/TIME START: 1987-01-16T08:00:00 * DATE/TIME END: 1987-03-07T13:30:00 |
long_lat |
ENVELOPE(-43.451600,3.099900,-61.810000,-70.832000) |
geographic |
Antarctic Weddell Weddell Sea |
geographic_facet |
Antarctic Weddell Weddell Sea |
genre |
Antarc* Antarctic South Atlantic Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic South Atlantic Ocean Weddell Sea |
op_source |
Supplement to: McCartney, Kevin; Wise, Sherwood W (1990): Cenozoic silicoflagellates and ebridians from ODP Leg 113: biostratigraphy and notes on morphologic variability. In: Barker, PF; Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113, 729-760, https://doi.org/10.2973/odp.proc.sr.113.142.1990 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.753479 https://doi.org/10.1594/PANGAEA.753479 |
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.753479 https://doi.org/10.2973/odp.proc.sr.113.142.1990 |
_version_ |
1766163901434560512 |