Miocene to Pliocene calcareous nannofossil biostratigraphy at ODP Leg 117 Sites 1088 and 1090, Southern Ocean, supplement to: Marino, Maria; Flores, José-Abel (2002): Miocene to Pliocene calcareous nannofossil biostratigraphy at ODP Leg 177 Sites 1088 and 1090. Marine Micropaleontology, 45(3-4), 291-307
The calcareous nannofossil biostratigraphy of ODP Leg 177 Sites 1088 and 1090 (Subantarctic sector from the Atlantic Ocean) is discussed. Most nannofossil zonal boundaries of Martini (1971) and Okada and Bukry (1980) were recognized for the studied mid-high-latitude sediments. Conventional low-latit...
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Online Access: | https://dx.doi.org/10.1594/pangaea.685598 https://doi.pangaea.de/10.1594/PANGAEA.685598 |
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ftdatacite:10.1594/pangaea.685598 2023-05-15T18:25:51+02:00 Miocene to Pliocene calcareous nannofossil biostratigraphy at ODP Leg 117 Sites 1088 and 1090, Southern Ocean, supplement to: Marino, Maria; Flores, José-Abel (2002): Miocene to Pliocene calcareous nannofossil biostratigraphy at ODP Leg 177 Sites 1088 and 1090. Marine Micropaleontology, 45(3-4), 291-307 Marino, Maria Flores, José-Abel 2002 application/zip https://dx.doi.org/10.1594/pangaea.685598 https://doi.pangaea.de/10.1594/PANGAEA.685598 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1016/s0377-8398(02)00033-6 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Drilling/drill rig Leg177 Joides Resolution Ocean Drilling Program ODP Supplementary Collection of Datasets Collection article 2002 ftdatacite https://doi.org/10.1594/pangaea.685598 https://doi.org/10.1016/s0377-8398(02)00033-6 2022-02-08T16:24:46Z The calcareous nannofossil biostratigraphy of ODP Leg 177 Sites 1088 and 1090 (Subantarctic sector from the Atlantic Ocean) is discussed. Most nannofossil zonal boundaries of Martini (1971) and Okada and Bukry (1980) were recognized for the studied mid-high-latitude sediments. Conventional low-latitude marker species such as Amaurolithus spp., Discoaster spp., Triquetrorhabdulus spp., Ceratolithus spp. were recorded as rare and scattered, which impeded the development of a detailed nannofossil biostratigraphic zonation of some Miocene and Pliocene intervals. Because of the absence of some primary biostratigraphic marker species, additional second-order bioevents, such as the first occurrence of Calcidiscus macintyrei and the last occurrence of Coccolithus miopelagicus, have been used to approximate the base of zones NN7 and NN8, respectively. Several disconformities disturbing the Pliocene and Miocene intervals of Site 1090 could be determined based on nannofossil distribution although the occurrence of intervals with dissolved nannofloras and low species diversity prevented a reliable age assignment. An acme of small Gephyrocapsa was recognized near the lower/middle Pliocene boundary, close to the NN15-NN16 zonal boundary, presenting an event for further improvement of the calcareous nannofossil biostratigraphy of this interval time. The first occurrence of Pseudoemiliania lacunosa (>4 µm) occurs close to this interval, representing a fairly reliable event to approximate the base of NN15 zone when other biozonal events are absent. A paracme of R. pseudoumbilicus (>7 µm) was detected in the lower Pliocene NN12 and in the upper Miocene NN11. These temporary absences of the species seem to be isochronous between high-latitude and low-middle-latitude areas. Article in Journal/Newspaper Southern Ocean DataCite Metadata Store (German National Library of Science and Technology) Southern Ocean |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Drilling/drill rig Leg177 Joides Resolution Ocean Drilling Program ODP |
spellingShingle |
Drilling/drill rig Leg177 Joides Resolution Ocean Drilling Program ODP Marino, Maria Flores, José-Abel Miocene to Pliocene calcareous nannofossil biostratigraphy at ODP Leg 117 Sites 1088 and 1090, Southern Ocean, supplement to: Marino, Maria; Flores, José-Abel (2002): Miocene to Pliocene calcareous nannofossil biostratigraphy at ODP Leg 177 Sites 1088 and 1090. Marine Micropaleontology, 45(3-4), 291-307 |
topic_facet |
Drilling/drill rig Leg177 Joides Resolution Ocean Drilling Program ODP |
description |
The calcareous nannofossil biostratigraphy of ODP Leg 177 Sites 1088 and 1090 (Subantarctic sector from the Atlantic Ocean) is discussed. Most nannofossil zonal boundaries of Martini (1971) and Okada and Bukry (1980) were recognized for the studied mid-high-latitude sediments. Conventional low-latitude marker species such as Amaurolithus spp., Discoaster spp., Triquetrorhabdulus spp., Ceratolithus spp. were recorded as rare and scattered, which impeded the development of a detailed nannofossil biostratigraphic zonation of some Miocene and Pliocene intervals. Because of the absence of some primary biostratigraphic marker species, additional second-order bioevents, such as the first occurrence of Calcidiscus macintyrei and the last occurrence of Coccolithus miopelagicus, have been used to approximate the base of zones NN7 and NN8, respectively. Several disconformities disturbing the Pliocene and Miocene intervals of Site 1090 could be determined based on nannofossil distribution although the occurrence of intervals with dissolved nannofloras and low species diversity prevented a reliable age assignment. An acme of small Gephyrocapsa was recognized near the lower/middle Pliocene boundary, close to the NN15-NN16 zonal boundary, presenting an event for further improvement of the calcareous nannofossil biostratigraphy of this interval time. The first occurrence of Pseudoemiliania lacunosa (>4 µm) occurs close to this interval, representing a fairly reliable event to approximate the base of NN15 zone when other biozonal events are absent. A paracme of R. pseudoumbilicus (>7 µm) was detected in the lower Pliocene NN12 and in the upper Miocene NN11. These temporary absences of the species seem to be isochronous between high-latitude and low-middle-latitude areas. |
format |
Article in Journal/Newspaper |
author |
Marino, Maria Flores, José-Abel |
author_facet |
Marino, Maria Flores, José-Abel |
author_sort |
Marino, Maria |
title |
Miocene to Pliocene calcareous nannofossil biostratigraphy at ODP Leg 117 Sites 1088 and 1090, Southern Ocean, supplement to: Marino, Maria; Flores, José-Abel (2002): Miocene to Pliocene calcareous nannofossil biostratigraphy at ODP Leg 177 Sites 1088 and 1090. Marine Micropaleontology, 45(3-4), 291-307 |
title_short |
Miocene to Pliocene calcareous nannofossil biostratigraphy at ODP Leg 117 Sites 1088 and 1090, Southern Ocean, supplement to: Marino, Maria; Flores, José-Abel (2002): Miocene to Pliocene calcareous nannofossil biostratigraphy at ODP Leg 177 Sites 1088 and 1090. Marine Micropaleontology, 45(3-4), 291-307 |
title_full |
Miocene to Pliocene calcareous nannofossil biostratigraphy at ODP Leg 117 Sites 1088 and 1090, Southern Ocean, supplement to: Marino, Maria; Flores, José-Abel (2002): Miocene to Pliocene calcareous nannofossil biostratigraphy at ODP Leg 177 Sites 1088 and 1090. Marine Micropaleontology, 45(3-4), 291-307 |
title_fullStr |
Miocene to Pliocene calcareous nannofossil biostratigraphy at ODP Leg 117 Sites 1088 and 1090, Southern Ocean, supplement to: Marino, Maria; Flores, José-Abel (2002): Miocene to Pliocene calcareous nannofossil biostratigraphy at ODP Leg 177 Sites 1088 and 1090. Marine Micropaleontology, 45(3-4), 291-307 |
title_full_unstemmed |
Miocene to Pliocene calcareous nannofossil biostratigraphy at ODP Leg 117 Sites 1088 and 1090, Southern Ocean, supplement to: Marino, Maria; Flores, José-Abel (2002): Miocene to Pliocene calcareous nannofossil biostratigraphy at ODP Leg 177 Sites 1088 and 1090. Marine Micropaleontology, 45(3-4), 291-307 |
title_sort |
miocene to pliocene calcareous nannofossil biostratigraphy at odp leg 117 sites 1088 and 1090, southern ocean, supplement to: marino, maria; flores, josé-abel (2002): miocene to pliocene calcareous nannofossil biostratigraphy at odp leg 177 sites 1088 and 1090. marine micropaleontology, 45(3-4), 291-307 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2002 |
url |
https://dx.doi.org/10.1594/pangaea.685598 https://doi.pangaea.de/10.1594/PANGAEA.685598 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
https://dx.doi.org/10.1016/s0377-8398(02)00033-6 |
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.685598 https://doi.org/10.1016/s0377-8398(02)00033-6 |
_version_ |
1766207542594109440 |