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Marine ammonification and carbonic anhydrase activity induce rapid calcium carbonate precipitation

Abstract.

"During Earth’s history, precipitation of calcium carbonate by heterotrophic microbes has substantially contributed to the genesis of copious amounts of carbonate sediment and its subsequent lithification. Previous work identified the microbial sulfur and nitrogen cycle as principal pathways involved in the formation of marine calcium carbonate deposits. While substantial knowledge exists for the importance of the sulfur cycle, specifically sulfate reduction, with regard to carbonate formation, information about carbonate genesis connected to the microbial nitrogen cycle is dissatisfactory. [...]"

Source: Geochimica et Cosmochimica Acta
Authors: S. Krause et al
DOI: 10.1016/j.gca.2018.09.018

Read the full article here.


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