Experimental investigation of calcium carbonate mineralogy in past and future oceans [PDF]
, 2011 Inorganic marine calcium carbonate formation and mineralogy varies significantly concurrent with the solution composition. During the Phanerozoic, due to oscillations in the seawater composition, this resulted in the formation of either dominantly ...
Bots, Pieter
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Biomineralisation in the Palaeozoic oceans: evidence for simultaneous crystallisation of high and low magnesium calcite by phacopine trilobites [PDF]
, 2012 The chemical composition and microstructure of the calcite cuticles of eleven species of phacopine trilobites have been investigated by electron beam imaging, diffraction, and microanalysis, and results reveal that the lenses of their schizochroal eyes ...
Torney, C., Lee, M., Owen, A.W.
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Assessment of crystallographic influence on material properties of calcite brachiopods [PDF]
, 2008 Calcium carbonate biominerals are frequently analysed in materials science due to their abundance, diversity and unique material properties. Aragonite nacre is intensively studied, but less information is available about the material properties of ...
Perez-Huerta, A., Cusack, M., Zhu, W.
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Neptunium(V) Coprecipitation with Calcite [PDF]
Environmental Science & Technology, 2007 Coprecipitation experiments of Np(V) and U(VI) with calcite were performed in mixed-flow reactors under steady state conditions at room temperature for up to 400 h at precipitation rates of 1.0 x 10(-8) to 6.8 x 10(-8) mol/(m2 s). The saturation index with respect to calcite varied between 0.04 and 0.95.
Heberling, F. +2 more
openaire +3 more sources
The Depositional Record, 2022 Lacustrine non‐skeletal carbonates exhibit a diversity of petrographies due to interactions between physico‐chemical and biologically influenced mechanisms. Despite the suggestion that evaporative concentration was involved in the formation of spherulite
Ramon Mercedes‐Martín +3 more
doaj +1 more source
Not all calcite ballast is created equal: differing effects of foraminiferan and coccolith calcite on the formation and sinking of aggregates [PDF]
, 2014 Correlation between particulate organic carbon (POC) and calcium carbonate sinking through the deep ocean has led to the idea that ballast provided by calcium carbonate is important for the export of POC from the surface ocean.
K. Schmidt +9 more
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Buildings, 2021 Determining the age of ancient architectural and cultural monuments is a significant scientific problem. An approach based on the transformation of portlandite into calcite and subsequent recrystallization of calcite is considered, which allows for ...
Vladimir Kotlyar +5 more
doaj +1 more source
Correlation of the entrainment factor with frother types and their mixtures in the column flotation
Cumhuriyet Science Journal, 2019 In flotation, entrainment is a mechanical mass transfer process and itis based on the changes depending on the establishment of linear relationshipbetween water and solid recovery. The present paper presents results obtainedin investigating the effect of
Hülya Kurşun
doaj +1 more source
Dynamic recrystallization and deformation mechanisms of naturally deformed Carrara Marble: a study on one- and two-phase carbonate rocks [PDF]
, 2004 Carrara marble is a greenschist facies metamorphic marble from the Alpi Apuane, Tuscany, Italy. It is widely known for its chemical purity, its homogenous microstructure and isotropic texture (crystallographic preferred orientation).
Oesterling, Nils
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Bromate incorporation in calcite and aragonite [PDF]
, 2021 The presence of bromine as a trace-element in calcium carbonate speleothems constitutes a useful proxy of past volcanic activity, thus helping to provide input parameters for climate model simulations and risk assessment.
Ricardo, Grau-Crespo +2 more
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