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Open AccessBiodegradation of materials: building bridges between scientific disciplines
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Article
Open AccessRapid grain boundary diffusion in foraminifera tests biases paleotemperature records
The oxygen isotopic compositions of fossil foraminifera tests constitute a continuous proxy record of deep-ocean and sea-surface temperatures spanning the last 120 million years. Here, by incubating foraminife...
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Article
Open AccessA comparative study of the dissolution mechanisms of amorphous and crystalline feldspars at acidic pH conditions
The dissolution of amorphous and crystalline oligoclase, a Na-feldspar with traces of Ca and K, was investigated at 90 °C and acidic pH of 1.5 and 3 to unravel the impact of long- and short-range orders on sil...
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Article
Open AccessFast and pervasive diagenetic isotope exchange in foraminifera tests is species-dependent
Oxygen isotope compositions of fossil foraminifera tests are commonly used proxies for ocean paleotemperatures, with reconstructions spanning the last 112 million years. However, the isotopic composition of th...
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Open AccessEstimating the activation energy of bond hydrolysis by time-resolved weighing of dissolving crystals
Bond-breaking activation energy EB is nowadays a key parameter for understanding and modeling crystal dissolution processes. However, a methodology to estimate EB based on classical dissolution experiments still ...
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Open AccessSymbiotic cooperation between freshwater rock-boring bivalves and microorganisms promotes silicate bioerosion
Bioerosion is a process with a high socio-economic impact that contributes to coastal retreat, and likely to increase with climate change. Whereas limestone bioerosion is well explained by a combination of mec...
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Open AccessCarbon dioxide sequestration through silicate degradation and carbon mineralisation: promises and uncertainties
Turning carbon dioxide (CO2) into rocks: controlling this process, which naturally operates at the Earth’s surface over geological timescales, is likely to represent a major technological challenge of this centur...
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Open AccessOrganic molecular heterogeneities can withstand diagenesis
Reconstructing the original biogeochemistry of organic fossils requires quantifying the extent of the chemical transformations that they underwent during burial-induced maturation processes. Here, we performed...