(Table 1) Age determination of sediment cores F2-92-P3 and F2-92-P40

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...

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Bibliographic Details
Main Authors: Zheng, Y, van Geen, Alexander, Anderson, Robert F, Gardner, James V, Dean, Walter E, Zheng, Yan
Format: Dataset
Language:English
Published: PANGAEA 2000
Subjects:
Age
14C AMS
14C calibrated
dated
dated material
dated standard error
Calendar age
DEPTH
sediment/rock
Event label
F2-92-P3
F2-92-P40
Laboratory code/label
Pacific Ocean
PC
Piston corer
Pacific
North Atlantic
Planktonic foraminifera
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.855279
https://doi.org/10.1594/PANGAEA.855279
Description
Summary: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.

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