Age calibration of the most significant coccolithophore biostratigraphic events at ODP Site 177-1089 (Table 1)
Coccolithophore assemblages at ODP Site 1089 in the southern Cape Basin (~41°S) were used to reconstruct surface-water conditions for the late Quaternary (Marine Isotope Stages (MIS) 1-15) in a region of strong hydrographic gradients in the southeast Atlantic. Stratigraphic control was provided by o...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.705284 2023-05-15T18:21:18+02:00 Age calibration of the most significant coccolithophore biostratigraphic events at ODP Site 177-1089 (Table 1) Flores, José-Abel Marino, Maria Sierro, Francisco Javier Hodell, David A Charles, Christopher D LATITUDE: -40.936333 * LONGITUDE: 9.893983 * DATE/TIME START: 1997-12-19T00:00:00 * DATE/TIME END: 1997-12-19T00:00:00 * MINIMUM DEPTH, sediment/rock: 8.57 m * MAXIMUM DEPTH, sediment/rock: 85.17 m 2003-10-08 text/tab-separated-values, 16 data points https://doi.pangaea.de/10.1594/PANGAEA.705284 https://doi.org/10.1594/PANGAEA.705284 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.705284 https://doi.org/10.1594/PANGAEA.705284 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Flores, José-Abel; Marino, Maria; Sierro, Francisco Javier; Hodell, David A; Charles, Christopher D (2003): Calcareous plankton dissolution pattern and coccolithophore assemblages during the last 600 kyr at ODP Site 1089 (Cape Basin, South Atlantic): paleoceanographic implications. Palaeogeography, Palaeoclimatology, Palaeoecology, 196(3-4), 409-426, https://doi.org/10.1016/S0031-0182(03)00467-X 177-1089 Age model Ageprofile Datum Description COMPCORE Composite Core DEPTH sediment/rock Joides Resolution Leg177 Ocean Drilling Program ODP South Atlantic Ocean Dataset 2003 ftpangaea https://doi.org/10.1594/PANGAEA.705284 https://doi.org/10.1016/S0031-0182(03)00467-X 2023-01-20T08:46:45Z Coccolithophore assemblages at ODP Site 1089 in the southern Cape Basin (~41°S) were used to reconstruct surface-water conditions for the late Quaternary (Marine Isotope Stages (MIS) 1-15) in a region of strong hydrographic gradients in the southeast Atlantic. Stratigraphic control was provided by oxygen isotope stratigraphy and calcareous nannofossil events that are thought to be synchronous over a broad range of latitudes. The greatest coccolith abundances occurred at glacial terminations and, to a lesser degree, during glacial stages. Conversely, coccolithophores were the least abundant during the transition between interglacial to glacial stages, when calcium carbonate dissolution was strong. With the exception of these intervals, coccolith preservation is moderate to good, allowing study of the assemblages. The total abundance of coccolithophores and calcium carbonate variations at Site 1089 result both from variations in dissolution and carbonate production. During terminations, for example, the greatest calcium carbonate concentrations occurred at the same time as a moderate-to-poor preservation of coccoliths and foraminifers. Carbonate production was relatively high during these intervals. However, during terminations IV and V, maxima in carbonate production in the ocean were linked to high-dissolution processes at Site 1089. This trend is not observed for terminations I, II and III [Hodell et al., Earth Planet. Sci. Lett. 192 (2001) 109-124, doi:10.1016/S0012-821X(01)00430-7]. The interval from MIS 9 to 13 is coincident with high abundances of highly calcified species such as Gephyrocapsa caribbeanica. Here we discuss the contribution of this ubiquitous species to the production of calcium carbonate and their paleoecological significance. Except for occasional coccolith-barren intervals during interglacial periods, subtropical coccolith species were present continuously at ODP Site 1089 during the late Pleistocene. This suggests that the Polar Front has been south of Site 1089 for the last 600 kyr. Dataset South Atlantic Ocean PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(9.893983,9.893983,-40.936333,-40.936333) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
177-1089 Age model Ageprofile Datum Description COMPCORE Composite Core DEPTH sediment/rock Joides Resolution Leg177 Ocean Drilling Program ODP South Atlantic Ocean |
spellingShingle |
177-1089 Age model Ageprofile Datum Description COMPCORE Composite Core DEPTH sediment/rock Joides Resolution Leg177 Ocean Drilling Program ODP South Atlantic Ocean Flores, José-Abel Marino, Maria Sierro, Francisco Javier Hodell, David A Charles, Christopher D Age calibration of the most significant coccolithophore biostratigraphic events at ODP Site 177-1089 (Table 1) |
topic_facet |
177-1089 Age model Ageprofile Datum Description COMPCORE Composite Core DEPTH sediment/rock Joides Resolution Leg177 Ocean Drilling Program ODP South Atlantic Ocean |
description |
Coccolithophore assemblages at ODP Site 1089 in the southern Cape Basin (~41°S) were used to reconstruct surface-water conditions for the late Quaternary (Marine Isotope Stages (MIS) 1-15) in a region of strong hydrographic gradients in the southeast Atlantic. Stratigraphic control was provided by oxygen isotope stratigraphy and calcareous nannofossil events that are thought to be synchronous over a broad range of latitudes. The greatest coccolith abundances occurred at glacial terminations and, to a lesser degree, during glacial stages. Conversely, coccolithophores were the least abundant during the transition between interglacial to glacial stages, when calcium carbonate dissolution was strong. With the exception of these intervals, coccolith preservation is moderate to good, allowing study of the assemblages. The total abundance of coccolithophores and calcium carbonate variations at Site 1089 result both from variations in dissolution and carbonate production. During terminations, for example, the greatest calcium carbonate concentrations occurred at the same time as a moderate-to-poor preservation of coccoliths and foraminifers. Carbonate production was relatively high during these intervals. However, during terminations IV and V, maxima in carbonate production in the ocean were linked to high-dissolution processes at Site 1089. This trend is not observed for terminations I, II and III [Hodell et al., Earth Planet. Sci. Lett. 192 (2001) 109-124, doi:10.1016/S0012-821X(01)00430-7]. The interval from MIS 9 to 13 is coincident with high abundances of highly calcified species such as Gephyrocapsa caribbeanica. Here we discuss the contribution of this ubiquitous species to the production of calcium carbonate and their paleoecological significance. Except for occasional coccolith-barren intervals during interglacial periods, subtropical coccolith species were present continuously at ODP Site 1089 during the late Pleistocene. This suggests that the Polar Front has been south of Site 1089 for the last 600 kyr. |
format |
Dataset |
author |
Flores, José-Abel Marino, Maria Sierro, Francisco Javier Hodell, David A Charles, Christopher D |
author_facet |
Flores, José-Abel Marino, Maria Sierro, Francisco Javier Hodell, David A Charles, Christopher D |
author_sort |
Flores, José-Abel |
title |
Age calibration of the most significant coccolithophore biostratigraphic events at ODP Site 177-1089 (Table 1) |
title_short |
Age calibration of the most significant coccolithophore biostratigraphic events at ODP Site 177-1089 (Table 1) |
title_full |
Age calibration of the most significant coccolithophore biostratigraphic events at ODP Site 177-1089 (Table 1) |
title_fullStr |
Age calibration of the most significant coccolithophore biostratigraphic events at ODP Site 177-1089 (Table 1) |
title_full_unstemmed |
Age calibration of the most significant coccolithophore biostratigraphic events at ODP Site 177-1089 (Table 1) |
title_sort |
age calibration of the most significant coccolithophore biostratigraphic events at odp site 177-1089 (table 1) |
publisher |
PANGAEA |
publishDate |
2003 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.705284 https://doi.org/10.1594/PANGAEA.705284 |
op_coverage |
LATITUDE: -40.936333 * LONGITUDE: 9.893983 * DATE/TIME START: 1997-12-19T00:00:00 * DATE/TIME END: 1997-12-19T00:00:00 * MINIMUM DEPTH, sediment/rock: 8.57 m * MAXIMUM DEPTH, sediment/rock: 85.17 m |
long_lat |
ENVELOPE(9.893983,9.893983,-40.936333,-40.936333) |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_source |
Supplement to: Flores, José-Abel; Marino, Maria; Sierro, Francisco Javier; Hodell, David A; Charles, Christopher D (2003): Calcareous plankton dissolution pattern and coccolithophore assemblages during the last 600 kyr at ODP Site 1089 (Cape Basin, South Atlantic): paleoceanographic implications. Palaeogeography, Palaeoclimatology, Palaeoecology, 196(3-4), 409-426, https://doi.org/10.1016/S0031-0182(03)00467-X |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.705284 https://doi.org/10.1594/PANGAEA.705284 |
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.705284 https://doi.org/10.1016/S0031-0182(03)00467-X |
_version_ |
1766200500128055296 |