Fig. 7.
Overview schematic of the proposed process of sea-ice mediated ballasting. Newly formed sea-ice incorporates resuspended sediments over the shallow Siberian shelf and cryogenic gypsum precipitates within the highly saline brine channels. The sea-ice is transported by the transpolar drift across the Arctic Ocean and is consequentially exported through the Fram Strait where it melts. During the melt, incorporated sediments and cryogenic gypsum are released. When encountered with organic matter that forms in, under, or in the vicinity of the sea-ice, the released ice-rafted material may ballast the organic matter which increases the settling velocity which drives a more efficient drawdown of carbon to the deep ocean and supports prevailing communities with food.