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The recent publication by SoMAS alum Shaily Rahman (PhD, 2016) and her advisors, Robert Aller and J. Kirk Cochran: “The Missing Silica Sink: Revisiting the Marine Sedimentary Si Cycle Using Cosmogenic 32Si” published in Global Biogeochemical Cycles 31, 1559 – 1578, is the January 2018 Research Spotlight on the American Geophysical Union site

In the Spotlight, author Terri Cook highlights how the team developed new techniques that more accurately, “by a factor of 2-4,” measure the “the amount and type of biogenic silica stored in samples collected from four depositional settings, including subtropical and tropical deltas and temperate coastal zones.”

Accounting for the Missing Silica in the Marine Sediment Cycle


(Global Biogeochemical Cycles, 2017)

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