(Table 1) Age determination of sediment cores JM97-948/2A and MD95-2011 ...

A high-resolution sediment core from the Vøring Plateau has been studied to document the centennial to millennial variability of the surface water conditions during the Holocene Climate Optimum (HCO) and the late Holocene period (LHP) in order to evaluate the effects of solar insolation on surface o...

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Bibliographic Details
Main Authors: Berner, K S, Koç, Nalân, Godtliebsen, Fred, Divine, Dmitry V
Format: Dataset
Language:English
Published: PANGAEA 2011
Subjects:
Event label
DEPTH, sediment/rock
Laboratory code/label
Age, dated
Age, dated standard deviation
Calendar age
Giant box corer
Calypso Corer
Age, 14C AMS
Age, 14C calibrated
MD101
Marion Dufresne 1995
Arctic
Vøring Plateau
Online Access:https://dx.doi.org/10.1594/pangaea.830646
https://doi.pangaea.de/10.1594/PANGAEA.830646
Description
Summary:A high-resolution sediment core from the Vøring Plateau has been studied to document the centennial to millennial variability of the surface water conditions during the Holocene Climate Optimum (HCO) and the late Holocene period (LHP) in order to evaluate the effects of solar insolation on surface ocean climatology. Quantitative August summer sea surface temperatures (SSSTs) with a time resolution of 2-40 years are reconstructed by using three different diatom transfer function methods. Spectral- and scale-space methods are applied to the records to explore the variability present in the time series at different time scales. The SSST development in core MD95-2011 shows a delayed response to Northern Hemisphere maximum summer insolation at ~11,000 years B.P. The record shows the maximum SSST of the HCO to be from 7.3 to 8.9 kyr B.P., which implies that the site was located in the regional warm water pool removed from the oceanic fronts and Arctic waters. Superimposed on the general cooling trend are ... : The measurements are made on the foraminifer species N. pachyderma (dex) and N. pachyderma (sin). The age of the Vedde ash layer is the GRIP age from Grönvold et al. (1995, doi:10.1016/0012-821X(95)00145-3). The dates were calibrated with the MARINE04 calibration curve, with Delta R of 0 ± 20 in the Holocene, and Delta R of 300 ± 20 in the pre-Holocene. The age-depth model uses a mixed-effect regression procedure, which uses the midpoint of the 1s ranges rather than the intercept as a point estimate of the 14C dates, described by Heegaard et al. (2005, doi:10.1191/0959683605hl836rr). ...

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