ArticleNature communications2022
Aragonite dissolution protects calcite at the seafloor.
Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 84 citations in OpenAlex.
- Microbially enhanced dissolution of calcite in sinking marine particles.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Calculation of the pH Values of Aqueous Systems Containing Carbonic Acid and Significance for Natural Waters, Following (Near-)Exact and Approximated Solutions: The Importance of the Boundary Conditions.Molecules (Basel, Switzerland) · 2026Article
- Multiphysics-Coupled Numerical Simulation of COACS omega · 2025Article
- Potential of COScience advances · 2025Article
- Surface Free Energies and Entropy of Aqueous CaCOLangmuir : the ACS journal of surfaces and colloids · 2025Article
- Morphological responses of a temperate intertidal foraminifer,Frontiers in microbiology · 2025Article
- Mangrove soil as a natural catalyst for green synthesis of silver nanoparticles.Frontiers in chemistry · 2025Article
- Enhanced clay formation key in sustaining the Middle Eocene Climatic Optimum.Nature geoscience · 2023Article
- The elements of life: A biocentric tour of the periodic table.Advances in microbial physiology · 2023Article
- Calcium Carbonate Dissolution from the Laboratory to the Ocean: Kinetics and Mechanism.Chemistry (Weinheim an der Bergstrasse, Germany) · 2022Review
Corrections and comments
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Authors and funding
6 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In the open ocean, calcium carbonates are mainly found in two mineral forms. Calcite, the least soluble, is widespread at the seafloor, while aragonite, the more soluble, is rarely preserved in marine sediments. Despite its greater solubility, research has shown that aragonite, whose contribution to global pelagic calcification could be at par with that of calcite, is able to reach the deep-ocean. If large quantities of aragonite settle and dissolve at the seafloor, this represents a large source of alkalinity that buffers the deep ocean and favours the preservation of less soluble calcite, acting as a deep-sea, carbonate version of galvanization. Here, we investigate the role of aragonite dissolution on the early diagenesis of calcite-rich sediments using a novel 3D, micrometric-scale reactive-transport model combined with 3D, X-ray tomography structures of natural aragonite and calcite shells. Results highlight the important role of diffusive transport in benthic calcium carbonate dissolution, in agreement with recent work. We show that, locally, aragonite fluxes to the seafloor could be sufficient to suppress calcite dissolution in the top layer of the seabed, possibly causing calcite recrystallization. As aragonite producers are particularly vulnerable to ocean acidification, the proposed galvanizing effect of aragonite could be weakened in the future, and calcite dissolution at the sediment-water interface will have to cover a greater share of CO
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