Stable carbon and oxygen isotope ratios of Cibicidoides wuellerstorfi, and CaCO3 and sand content of ODP Hole 165-999A, supplement to: Haug, Gerald H; Tiedemann, Ralf (1998): Effect of the formation of the Isthmus of Panama on Atlantic Ocean thermohaline circulation. Nature, 393, 673-676
The Late Cenozoic closure of the seaway between the North andSouth American continents is thought to have caused extensive changes in ocean circulation and Northern Hemisphere climate (Keigwin, 1982, doi:10.1126/science.217.4557.350; Maier-Reiners et al., 1990, doi:10.1029/PA005i003p00349). But the...
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ftdatacite:10.1594/pangaea.789866 2023-05-15T16:41:34+02:00 Stable carbon and oxygen isotope ratios of Cibicidoides wuellerstorfi, and CaCO3 and sand content of ODP Hole 165-999A, supplement to: Haug, Gerald H; Tiedemann, Ralf (1998): Effect of the formation of the Isthmus of Panama on Atlantic Ocean thermohaline circulation. Nature, 393, 673-676 Haug, Gerald H Tiedemann, Ralf 1998 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.789866 https://doi.pangaea.de/10.1594/PANGAEA.789866 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1038/31447 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Sample code/label DEPTH, sediment/rock Depth, sediment revised AGE Cibicidoides wuellerstorfi, δ13C Cibicidoides wuellerstorfi, δ18O Sand Accumulation rate, sand > 63 µm Calcium carbonate Drilling/drill rig DSDP/ODP/IODP sample designation Leg165 Joides Resolution Ocean Drilling Program ODP Supplementary Dataset dataset Dataset 1998 ftdatacite https://doi.org/10.1594/pangaea.789866 https://doi.org/10.1038/31447 2022-02-08T16:24:46Z The Late Cenozoic closure of the seaway between the North andSouth American continents is thought to have caused extensive changes in ocean circulation and Northern Hemisphere climate (Keigwin, 1982, doi:10.1126/science.217.4557.350; Maier-Reiners et al., 1990, doi:10.1029/PA005i003p00349). But the timing and consequences of the emergence of the Isthmus of Panama, which closed the seaway, remain controversial (Keigwin, 1982, doi:10.1126/science.217.4557.350; Maier-Reiners et al., 1990, doi:10.1029/PA005i003p00349; Duque-Caro, 1990, doi:10.1016/0031-0182(90)90178-A; Keller et al., 1989, doi:10.1016/0895-9811(89)90028-X; Collins et al., 1996, doi:10.1130/0091-7613(1996)024<0687:TLMPIS>2.3.CO;2). Here we present stable-isotope and carbonate sand-fraction records from Caribbean sediments which, when compared to Atlantic and Pacific palaeoceanographic records, indicate that the closure caused a marked reorganization of ocean circulation starting 4.6 million years ago. Shallowing of the seaway intensified the Gulf Stream and introduced warm and saline water masses to high northern latitudes. These changes strengthened deep-water formation in the Labrador Sea over the next million years - as indicated by an increased deep-water ventilation and carbonate preservation in the Caribbean Sea - and favoured early Pliocene warming of the Northern Hemisphere. The evaporative cooling of surface waters during North Atlantic Deep Water formation would have introduced moisture to the Northern Hemisphere. Although the pronounced intensification of Northern Hemisphere glaciation between 3.1 and 2.5 million years ago substantially lagged the full development of North Atlantic Deep Water formation, we propose that the increased atmospheric moisture content was a necessary precondition for ice-sheet growth, which was then triggered by the incremental changes in the Earth's orbital obliquity. : DEPTH, sedimen [m] is given in mbsf. Dataset Ice Sheet Labrador Sea North Atlantic Deep Water North Atlantic DataCite Metadata Store (German National Library of Science and Technology) Haug ENVELOPE(15.188,15.188,67.918,67.918) Keller ENVELOPE(-58.406,-58.406,-62.073,-62.073) Pacific |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Sample code/label DEPTH, sediment/rock Depth, sediment revised AGE Cibicidoides wuellerstorfi, δ13C Cibicidoides wuellerstorfi, δ18O Sand Accumulation rate, sand > 63 µm Calcium carbonate Drilling/drill rig DSDP/ODP/IODP sample designation Leg165 Joides Resolution Ocean Drilling Program ODP |
spellingShingle |
Sample code/label DEPTH, sediment/rock Depth, sediment revised AGE Cibicidoides wuellerstorfi, δ13C Cibicidoides wuellerstorfi, δ18O Sand Accumulation rate, sand > 63 µm Calcium carbonate Drilling/drill rig DSDP/ODP/IODP sample designation Leg165 Joides Resolution Ocean Drilling Program ODP Haug, Gerald H Tiedemann, Ralf Stable carbon and oxygen isotope ratios of Cibicidoides wuellerstorfi, and CaCO3 and sand content of ODP Hole 165-999A, supplement to: Haug, Gerald H; Tiedemann, Ralf (1998): Effect of the formation of the Isthmus of Panama on Atlantic Ocean thermohaline circulation. Nature, 393, 673-676 |
topic_facet |
Sample code/label DEPTH, sediment/rock Depth, sediment revised AGE Cibicidoides wuellerstorfi, δ13C Cibicidoides wuellerstorfi, δ18O Sand Accumulation rate, sand > 63 µm Calcium carbonate Drilling/drill rig DSDP/ODP/IODP sample designation Leg165 Joides Resolution Ocean Drilling Program ODP |
description |
The Late Cenozoic closure of the seaway between the North andSouth American continents is thought to have caused extensive changes in ocean circulation and Northern Hemisphere climate (Keigwin, 1982, doi:10.1126/science.217.4557.350; Maier-Reiners et al., 1990, doi:10.1029/PA005i003p00349). But the timing and consequences of the emergence of the Isthmus of Panama, which closed the seaway, remain controversial (Keigwin, 1982, doi:10.1126/science.217.4557.350; Maier-Reiners et al., 1990, doi:10.1029/PA005i003p00349; Duque-Caro, 1990, doi:10.1016/0031-0182(90)90178-A; Keller et al., 1989, doi:10.1016/0895-9811(89)90028-X; Collins et al., 1996, doi:10.1130/0091-7613(1996)024<0687:TLMPIS>2.3.CO;2). Here we present stable-isotope and carbonate sand-fraction records from Caribbean sediments which, when compared to Atlantic and Pacific palaeoceanographic records, indicate that the closure caused a marked reorganization of ocean circulation starting 4.6 million years ago. Shallowing of the seaway intensified the Gulf Stream and introduced warm and saline water masses to high northern latitudes. These changes strengthened deep-water formation in the Labrador Sea over the next million years - as indicated by an increased deep-water ventilation and carbonate preservation in the Caribbean Sea - and favoured early Pliocene warming of the Northern Hemisphere. The evaporative cooling of surface waters during North Atlantic Deep Water formation would have introduced moisture to the Northern Hemisphere. Although the pronounced intensification of Northern Hemisphere glaciation between 3.1 and 2.5 million years ago substantially lagged the full development of North Atlantic Deep Water formation, we propose that the increased atmospheric moisture content was a necessary precondition for ice-sheet growth, which was then triggered by the incremental changes in the Earth's orbital obliquity. : DEPTH, sedimen [m] is given in mbsf. |
format |
Dataset |
author |
Haug, Gerald H Tiedemann, Ralf |
author_facet |
Haug, Gerald H Tiedemann, Ralf |
author_sort |
Haug, Gerald H |
title |
Stable carbon and oxygen isotope ratios of Cibicidoides wuellerstorfi, and CaCO3 and sand content of ODP Hole 165-999A, supplement to: Haug, Gerald H; Tiedemann, Ralf (1998): Effect of the formation of the Isthmus of Panama on Atlantic Ocean thermohaline circulation. Nature, 393, 673-676 |
title_short |
Stable carbon and oxygen isotope ratios of Cibicidoides wuellerstorfi, and CaCO3 and sand content of ODP Hole 165-999A, supplement to: Haug, Gerald H; Tiedemann, Ralf (1998): Effect of the formation of the Isthmus of Panama on Atlantic Ocean thermohaline circulation. Nature, 393, 673-676 |
title_full |
Stable carbon and oxygen isotope ratios of Cibicidoides wuellerstorfi, and CaCO3 and sand content of ODP Hole 165-999A, supplement to: Haug, Gerald H; Tiedemann, Ralf (1998): Effect of the formation of the Isthmus of Panama on Atlantic Ocean thermohaline circulation. Nature, 393, 673-676 |
title_fullStr |
Stable carbon and oxygen isotope ratios of Cibicidoides wuellerstorfi, and CaCO3 and sand content of ODP Hole 165-999A, supplement to: Haug, Gerald H; Tiedemann, Ralf (1998): Effect of the formation of the Isthmus of Panama on Atlantic Ocean thermohaline circulation. Nature, 393, 673-676 |
title_full_unstemmed |
Stable carbon and oxygen isotope ratios of Cibicidoides wuellerstorfi, and CaCO3 and sand content of ODP Hole 165-999A, supplement to: Haug, Gerald H; Tiedemann, Ralf (1998): Effect of the formation of the Isthmus of Panama on Atlantic Ocean thermohaline circulation. Nature, 393, 673-676 |
title_sort |
stable carbon and oxygen isotope ratios of cibicidoides wuellerstorfi, and caco3 and sand content of odp hole 165-999a, supplement to: haug, gerald h; tiedemann, ralf (1998): effect of the formation of the isthmus of panama on atlantic ocean thermohaline circulation. nature, 393, 673-676 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
1998 |
url |
https://dx.doi.org/10.1594/pangaea.789866 https://doi.pangaea.de/10.1594/PANGAEA.789866 |
long_lat |
ENVELOPE(15.188,15.188,67.918,67.918) ENVELOPE(-58.406,-58.406,-62.073,-62.073) |
geographic |
Haug Keller Pacific |
geographic_facet |
Haug Keller Pacific |
genre |
Ice Sheet Labrador Sea North Atlantic Deep Water North Atlantic |
genre_facet |
Ice Sheet Labrador Sea North Atlantic Deep Water North Atlantic |
op_relation |
https://dx.doi.org/10.1038/31447 |
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.789866 https://doi.org/10.1038/31447 |
_version_ |
1766032021566521344 |