Calvo, Eva; Pelejero, Carles; Logan, Graham A; De Deckker, Patrick
An increase in iron supply associated with enhanced dust inputs could be responsible for higher marine phytoplankton production leading to the typically lower glacial atmospheric CO2 concentrations, as suggested by the "iron hypothesis." The enhanced dust supply may also have provided the oceans with significant amounts of silica, which would have favored the growth of diatoms over coccolithophores, as suggested by the "silica hypothesis." Here we present new data on molecular biomarkers in a...[Show more]
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