Regional benthic δ¹⁸O stacks and their δ¹⁸O uncertainties ...
Benthic δ18O changes are often assumed to be globally synchronous, but studies comparing 2–9 radiocarbon‐dated records over the most recent deglaciation (Termination 1) have proposed differences in the timing of benthic δ18O change between the Atlantic and Pacific, intermediate and deep, and North a...
| Main Authors: | , |
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| Format: | Dataset |
| Language: | English |
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PANGAEA
2018
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.1594/pangaea.891137 https://doi.pangaea.de/10.1594/PANGAEA.891137 |
| Summary: | Benthic δ18O changes are often assumed to be globally synchronous, but studies comparing 2–9 radiocarbon‐dated records over the most recent deglaciation (Termination 1) have proposed differences in the timing of benthic δ18O change between the Atlantic and Pacific, intermediate and deep, and North and South Atlantic. Because of the relatively small number of records used in these previous studies, it has remained unclear whether these differences are local or regional in scale. Here we present seven regional benthic δ18O stacks for 0–40 kyr B.P. that include 252 records with independent regional age models constrained by 852 planktonic foraminiferal 14C dates from 61 of these cores. We find a 4000 year difference between the earliest termination onset in the intermediate South Atlantic at 18.5 (95% confidence interval: 17.9–19.0) kyr B.P. and the latest in the deep Indian at 14.5 (14.1–15.0) kyr B.P. The termination onset occurs at 17.5 kyr B.P. in the intermediate and deep North Atlantic, deep South ... : Supplement to: Stern, Joseph V; Lisiecki, Lorraine E (2014): Termination 1 timing in radiocarbon-dated regional benthic δ18O stacks. Paleoceanography, 29(12), 1127-1142 ... |
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