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Silicic acid utilization efficiency

Silicic acid utilization efficiency. Paleo-proxy: Termination II, Southern Ocean Large change in d 30 Si across Termination. OIS 6. OIS 5e. Termination II. Modeling oceanic d 30 Si. Seasonal fractionation Export of biogenic opal High utilization in gyres

jermaine-sweet
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Silicic acid utilization efficiency

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  1. Silicic acid utilization efficiency • Paleo-proxy: Termination II, Southern Ocean • Large change in d30Si across Termination OIS 6 OIS 5e Termination II

  2. Modeling oceanic d30Si • Seasonal fractionation • Export of biogenic opal • High utilization in gyres • But no deep-water signals expected Wischmeyer et al.`03

  3. Global Deep-Water Distribution • Strong [Si] and isotopic contrasts Along “conveyor”

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