Articles | Volume 14, issue 6
The Cryosphere, 14, 1795–1808, 2020
https://doi.org/10.5194/tc-14-1795-2020
The Cryosphere, 14, 1795–1808, 2020
https://doi.org/10.5194/tc-14-1795-2020

Research article 04 Jun 2020

Research article | 04 Jun 2020

New observations of the distribution, morphology and dissolution dynamics of cryogenic gypsum in the Arctic Ocean

Jutta E. Wollenburg et al.

Data sets

Cryogenic gypsum collected during PS106-1/2 in 2017 J. E. Wollenburg and M. H. Iversen https://doi.org/10.1594/PANGAEA.916035

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Short summary
Based on an observed omnipresence of gypsum crystals, we concluded that their release from melting sea ice is a general feature in the Arctic Ocean. Individual gypsum crystals sank at more than 7000 m d−1, suggesting that they are an important ballast mineral. Previous observations found gypsum inside phytoplankton aggregates at 2000 m depth, supporting gypsum as an important driver for pelagic-benthic coupling in the ice-covered Arctic Ocean.