(Table 1) Age determination of sediment cores F2-92-P3 and F2-92-P40
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| Autori principali: | , , , , , |
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| Natura: | Dataset Open Access |
| Lingua: | en |
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PANGAEA
2000
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| _version_ | 1867169108608417792 |
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| author | Zheng, Y van Geen, Alexander Anderson, Robert F Gardner, James V Dean, Walter E Zheng, Yan |
| author_facet | Zheng, Y van Geen, Alexander Anderson, Robert F Gardner, James V Dean, Walter E Zheng, Yan |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Although climate records from several locations around the world show nearly synchronous and abrupt changes, the nature of the inferred teleconnection is still poorly understood. On the basis of preserved laminations and molybdenum enrichments in open margin sediments we demonstrate that the oxygen content of northeast Pacific waters at 800 m depth during the Bölling-Alleröd warm period (15–13 kyr) was greatly reduced. Existing oxygen isotopic records of benthic and planktonic foraminifera suggest that this was probably due to suppressed ventilation at higher latitudes of the North Pacific. Comparison with ventilation records for the North Atlantic indicates an antiphased pattern of convection relative to the North Pacific over the past 22 kyr, perhaps due to variations in water vapor transport across Central America. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_855279 |
| institution | PANGAEA |
| language | en |
| publishDate | 2000 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table 1) Age determination of sediment cores F2-92-P3 and F2-92-P40 Zheng, Y van Geen, Alexander Anderson, Robert F Gardner, James V Dean, Walter E Zheng, Yan Age, 14C AMS; Age, 14C calibrated; Age, dated; Age, dated material; Age, dated standard error; Calendar age; DEPTH, sediment/rock; Event label; F2-92-P3; F2-92-P40; Laboratory code/label; Pacific Ocean; PC; Piston corer Although climate records from several locations around the world show nearly synchronous and abrupt changes, the nature of the inferred teleconnection is still poorly understood. On the basis of preserved laminations and molybdenum enrichments in open margin sediments we demonstrate that the oxygen content of northeast Pacific waters at 800 m depth during the Bölling-Alleröd warm period (15–13 kyr) was greatly reduced. Existing oxygen isotopic records of benthic and planktonic foraminifera suggest that this was probably due to suppressed ventilation at higher latitudes of the North Pacific. Comparison with ventilation records for the North Atlantic indicates an antiphased pattern of convection relative to the North Pacific over the past 22 kyr, perhaps due to variations in water vapor transport across Central America. |
| title | (Table 1) Age determination of sediment cores F2-92-P3 and F2-92-P40 |
| topic | Age, 14C AMS; Age, 14C calibrated; Age, dated; Age, dated material; Age, dated standard error; Calendar age; DEPTH, sediment/rock; Event label; F2-92-P3; F2-92-P40; Laboratory code/label; Pacific Ocean; PC; Piston corer |
| url | https://doi.org/10.1594/PANGAEA.855279 |