Abundances and contents of major silicoflagellates from IODP Holes of Exp302
The silicoflagellate taxa obtained in IODP Expedition 302 (ACEX) were identified and counted in order to establish the silicoflagellate biostratigraphy in the central Arctic Ocean. These microfossils in the ACEX samples were preserved in the Lithology Units 1/6 and 2, which are dark silty clay and b...
Main Authors: | , |
---|---|
Format: | Other/Unknown Material |
Language: | English |
Published: |
PANGAEA
2012
|
Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.787520 https://doi.org/10.1594/PANGAEA.787520 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.787520 |
---|---|
record_format |
openpolar |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.787520 2024-09-15T17:50:27+00:00 Abundances and contents of major silicoflagellates from IODP Holes of Exp302 Onodera, Jonaotaro Takahashi, Kozo MEDIAN LATITUDE: 87.893880 * MEDIAN LONGITUDE: 137.771180 * SOUTH-BOUND LATITUDE: 87.866580 * WEST-BOUND LONGITUDE: 136.177350 * NORTH-BOUND LATITUDE: 87.921180 * EAST-BOUND LONGITUDE: 139.365010 * DATE/TIME START: 2004-08-19T00:00:00 * DATE/TIME END: 2004-08-27T00:00:00 2012 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.787520 https://doi.org/10.1594/PANGAEA.787520 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.787520 https://doi.org/10.1594/PANGAEA.787520 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Onodera, Jonaotaro; Takahashi, Kozo (2009): Taxonomy and biostratigraphy of middle Eocene silicoflagellates in the central Arctic Basin. Micropaleontology, 55(2-3), 209-248 Integrated Ocean Drilling Program / International Ocean Discovery Program IODP dataset publication series 2012 ftpangaea https://doi.org/10.1594/PANGAEA.787520 2024-07-24T02:31:21Z The silicoflagellate taxa obtained in IODP Expedition 302 (ACEX) were identified and counted in order to establish the silicoflagellate biostratigraphy in the central Arctic Ocean. These microfossils in the ACEX samples were preserved in the Lithology Units 1/6 and 2, which are dark silty clay and biosiliceous ooze, respectively. The silicoflagellate skeletons in the ACEX samples are assigned to 56 taxa. Seven taxa were described as new species, which were abundant in Lithology Unit 2. Comparison with several study cases outside the Eocene Arctic Ocean suggested that the silicoflagellate assemblages in ACEX were unique in Lithology Unit 2. The dominance of silicoflagellate taxa varied throughout the lithological section. Based on the cluster analysis by Morishita similarity index C(Lambda), the silicoflagellate assemblageswere divided into nine assemblage groups. The silicoflagellate datum event of the first occurrence of Corbisema hexacantha in the lower part of Lithology Unit 1/6 is regarded. Based on the datum events for silicoflagellate and palynomorphs, the assigned epoch of Lithology Units 1/6 and 2 is the middle Eocene. Other/Unknown Material Arctic Arctic Ocean PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(136.177350,139.365010,87.921180,87.866580) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Integrated Ocean Drilling Program / International Ocean Discovery Program IODP |
spellingShingle |
Integrated Ocean Drilling Program / International Ocean Discovery Program IODP Onodera, Jonaotaro Takahashi, Kozo Abundances and contents of major silicoflagellates from IODP Holes of Exp302 |
topic_facet |
Integrated Ocean Drilling Program / International Ocean Discovery Program IODP |
description |
The silicoflagellate taxa obtained in IODP Expedition 302 (ACEX) were identified and counted in order to establish the silicoflagellate biostratigraphy in the central Arctic Ocean. These microfossils in the ACEX samples were preserved in the Lithology Units 1/6 and 2, which are dark silty clay and biosiliceous ooze, respectively. The silicoflagellate skeletons in the ACEX samples are assigned to 56 taxa. Seven taxa were described as new species, which were abundant in Lithology Unit 2. Comparison with several study cases outside the Eocene Arctic Ocean suggested that the silicoflagellate assemblages in ACEX were unique in Lithology Unit 2. The dominance of silicoflagellate taxa varied throughout the lithological section. Based on the cluster analysis by Morishita similarity index C(Lambda), the silicoflagellate assemblageswere divided into nine assemblage groups. The silicoflagellate datum event of the first occurrence of Corbisema hexacantha in the lower part of Lithology Unit 1/6 is regarded. Based on the datum events for silicoflagellate and palynomorphs, the assigned epoch of Lithology Units 1/6 and 2 is the middle Eocene. |
format |
Other/Unknown Material |
author |
Onodera, Jonaotaro Takahashi, Kozo |
author_facet |
Onodera, Jonaotaro Takahashi, Kozo |
author_sort |
Onodera, Jonaotaro |
title |
Abundances and contents of major silicoflagellates from IODP Holes of Exp302 |
title_short |
Abundances and contents of major silicoflagellates from IODP Holes of Exp302 |
title_full |
Abundances and contents of major silicoflagellates from IODP Holes of Exp302 |
title_fullStr |
Abundances and contents of major silicoflagellates from IODP Holes of Exp302 |
title_full_unstemmed |
Abundances and contents of major silicoflagellates from IODP Holes of Exp302 |
title_sort |
abundances and contents of major silicoflagellates from iodp holes of exp302 |
publisher |
PANGAEA |
publishDate |
2012 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.787520 https://doi.org/10.1594/PANGAEA.787520 |
op_coverage |
MEDIAN LATITUDE: 87.893880 * MEDIAN LONGITUDE: 137.771180 * SOUTH-BOUND LATITUDE: 87.866580 * WEST-BOUND LONGITUDE: 136.177350 * NORTH-BOUND LATITUDE: 87.921180 * EAST-BOUND LONGITUDE: 139.365010 * DATE/TIME START: 2004-08-19T00:00:00 * DATE/TIME END: 2004-08-27T00:00:00 |
long_lat |
ENVELOPE(136.177350,139.365010,87.921180,87.866580) |
genre |
Arctic Arctic Ocean |
genre_facet |
Arctic Arctic Ocean |
op_source |
Supplement to: Onodera, Jonaotaro; Takahashi, Kozo (2009): Taxonomy and biostratigraphy of middle Eocene silicoflagellates in the central Arctic Basin. Micropaleontology, 55(2-3), 209-248 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.787520 https://doi.org/10.1594/PANGAEA.787520 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.787520 |
_version_ |
1810292270149140480 |