Technical Comments

Response to Comment on “Dissolved organic sulfur in the ocean: Biogeochemistry of a petagram inventory”

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Science  26 May 2017:
Vol. 356, Issue 6340, pp. 813
DOI: 10.1126/science.aam6328

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Abstract

Dittmar et al. proposed that mixing alone can explain our observed decrease in marine dissolved organic sulfur with age. However, their simple model lacks an explanation for the origin of sulfur-depleted organic matter in the deep ocean and cannot adequately reproduce our observed stoichiometric changes. Using radiocarbon age also implicitly models the preferential cycling of sulfur that they are disputing.

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