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| Schiraldi, Benedetto, Jr.; Sikes, Elisabeth L.; Elmore, Aurora C.; Cook, Mea S.; Rose, Kathryn A.. |
| This study examined sources of mixed layer and shallow subsurface waters in the subtropical Bay of Plenty, New Zealand, across the last deglaciation (similar to 30-5 ka). delta O-18 and delta C-13 from planktonic foraminifera Globgerinoides bulloides and Globorotalia inflata in four sediment cores were used to reconstruct surface mixed layer thickness, delta O-18 of seawater (delta O-18(SW)) and differentiate between high-and low-latitude water provenance. During the last glaciation, depleted planktonic delta O-18(SW) and enriched delta C-13 (-0.4-0.1 parts per thousand) indicate surface waters had Southern Ocean sources. A rapid delta C-13 depletion of similar to 1 parts per thousand in G. bulloides between 20 and 19 ka indicates an early, permanent shift... |
| Tipo: Text |
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| Ano: 2014 |
URL: https://archimer.ifremer.fr/doc/00290/40132/39242.pdf |
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