Planktonic foraminifer datums, ages and ranges of ODP Hole165-999A
Planktonic foraminifers were examined in at least three samples per core at Site 999 in the western Caribbean Sea (12°45'N, 78°44'W; 2829 m water depth) through sediments representing the last ~18 m.y. An age model for Hole 999A was constructed using the available magnetic reversal record...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.803142 2024-09-15T18:19:32+00:00 Planktonic foraminifer datums, ages and ranges of ODP Hole165-999A Chaisson, William P d'Hondt, Steven L LATITUDE: 12.744000 * LONGITUDE: -78.739300 * DATE/TIME START: 1996-01-10T19:30:00 * DATE/TIME END: 1996-01-14T23:15:00 2000 application/zip, 5 datasets https://doi.pangaea.de/10.1594/PANGAEA.803142 https://doi.org/10.1594/PANGAEA.803142 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.803142 https://doi.org/10.1594/PANGAEA.803142 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Chaisson, William P; d'Hondt, Steven L (2000): Neogene planktonic foraminifer biostratigraphy at Site 999, western Caribbean Sea. In: Leckie, RM; Sigurdsson, H; Acton, GD; Draper, G (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 165, 1-38, https://doi.org/10.2973/odp.proc.sr.165.010.2000 165-999A Caribbean Sea DRILL Drilling/drill rig Joides Resolution Leg165 Ocean Drilling Program ODP dataset publication series 2000 ftpangaea https://doi.org/10.1594/PANGAEA.80314210.2973/odp.proc.sr.165.010.2000 2024-07-24T02:31:21Z Planktonic foraminifers were examined in at least three samples per core at Site 999 in the western Caribbean Sea (12°45'N, 78°44'W; 2829 m water depth) through sediments representing the last ~18 m.y. An age model for Hole 999A was constructed using the available magnetic reversal record (down to the top of the Gilbert Chron, 3.58 Ma) and selected planktonic foraminifer datum ages. Near 10 Ma an interval of extremely slow accumulation (5 m/m.y.) corresponds to the "carbonate crash" detected in other Leg 165 studies. Planktonic foraminifer datum ages, as calculated with the Hole 999A age model, are compared to the astrochronological ages assigned to datums at Ceara Rise (Leg 154) and to other published ages. Although there is general agreement, some significant differences are found that may be attributed to either regional paleoceanographic conditions or to shortcomings of the age model for this site. In the middle Miocene temperate latitude globoconellids (Globoconella praescitula, Gc. panda, and Gc. miozea) and in the upper Miocene Neogloboquadrina pachyderma (s) are found regularly at Site 999, suggesting the existence of an influx of cool Pacific surface water and/or regional seasonal upwelling before the emergence of the Central American Isthmus. Menardellid species (Menardella miocenica, M. pertenuis, and M. exilis) endemic to the tropical Atlantic are all encountered at this Caribbean site, although not as regularly or in as large numbers as they were found in the western tropical Atlantic (Leg 154). Several species that were absent from the tropical Atlantic for much of the Pliocene were also found to be missing from the Caribbean record during similar intervals. Other/Unknown Material Neogloboquadrina pachyderma PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-78.739300,-78.739300,12.744000,12.744000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
165-999A Caribbean Sea DRILL Drilling/drill rig Joides Resolution Leg165 Ocean Drilling Program ODP |
spellingShingle |
165-999A Caribbean Sea DRILL Drilling/drill rig Joides Resolution Leg165 Ocean Drilling Program ODP Chaisson, William P d'Hondt, Steven L Planktonic foraminifer datums, ages and ranges of ODP Hole165-999A |
topic_facet |
165-999A Caribbean Sea DRILL Drilling/drill rig Joides Resolution Leg165 Ocean Drilling Program ODP |
description |
Planktonic foraminifers were examined in at least three samples per core at Site 999 in the western Caribbean Sea (12°45'N, 78°44'W; 2829 m water depth) through sediments representing the last ~18 m.y. An age model for Hole 999A was constructed using the available magnetic reversal record (down to the top of the Gilbert Chron, 3.58 Ma) and selected planktonic foraminifer datum ages. Near 10 Ma an interval of extremely slow accumulation (5 m/m.y.) corresponds to the "carbonate crash" detected in other Leg 165 studies. Planktonic foraminifer datum ages, as calculated with the Hole 999A age model, are compared to the astrochronological ages assigned to datums at Ceara Rise (Leg 154) and to other published ages. Although there is general agreement, some significant differences are found that may be attributed to either regional paleoceanographic conditions or to shortcomings of the age model for this site. In the middle Miocene temperate latitude globoconellids (Globoconella praescitula, Gc. panda, and Gc. miozea) and in the upper Miocene Neogloboquadrina pachyderma (s) are found regularly at Site 999, suggesting the existence of an influx of cool Pacific surface water and/or regional seasonal upwelling before the emergence of the Central American Isthmus. Menardellid species (Menardella miocenica, M. pertenuis, and M. exilis) endemic to the tropical Atlantic are all encountered at this Caribbean site, although not as regularly or in as large numbers as they were found in the western tropical Atlantic (Leg 154). Several species that were absent from the tropical Atlantic for much of the Pliocene were also found to be missing from the Caribbean record during similar intervals. |
format |
Other/Unknown Material |
author |
Chaisson, William P d'Hondt, Steven L |
author_facet |
Chaisson, William P d'Hondt, Steven L |
author_sort |
Chaisson, William P |
title |
Planktonic foraminifer datums, ages and ranges of ODP Hole165-999A |
title_short |
Planktonic foraminifer datums, ages and ranges of ODP Hole165-999A |
title_full |
Planktonic foraminifer datums, ages and ranges of ODP Hole165-999A |
title_fullStr |
Planktonic foraminifer datums, ages and ranges of ODP Hole165-999A |
title_full_unstemmed |
Planktonic foraminifer datums, ages and ranges of ODP Hole165-999A |
title_sort |
planktonic foraminifer datums, ages and ranges of odp hole165-999a |
publisher |
PANGAEA |
publishDate |
2000 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.803142 https://doi.org/10.1594/PANGAEA.803142 |
op_coverage |
LATITUDE: 12.744000 * LONGITUDE: -78.739300 * DATE/TIME START: 1996-01-10T19:30:00 * DATE/TIME END: 1996-01-14T23:15:00 |
long_lat |
ENVELOPE(-78.739300,-78.739300,12.744000,12.744000) |
genre |
Neogloboquadrina pachyderma |
genre_facet |
Neogloboquadrina pachyderma |
op_source |
Supplement to: Chaisson, William P; d'Hondt, Steven L (2000): Neogene planktonic foraminifer biostratigraphy at Site 999, western Caribbean Sea. In: Leckie, RM; Sigurdsson, H; Acton, GD; Draper, G (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 165, 1-38, https://doi.org/10.2973/odp.proc.sr.165.010.2000 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.803142 https://doi.org/10.1594/PANGAEA.803142 |
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.80314210.2973/odp.proc.sr.165.010.2000 |
_version_ |
1810457884753920000 |