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Solutions, CO2, HCO3-, CO32- and CaCO3
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Speciation of inorganic carbon in aqueous solution |
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Variation in the dissociation constants of H2CO3 and HCO3- with temperature and salinity |
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PCO2 of atmospheres and pH and HCO3
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Carbonate equilibria in solutions exposed to the atmosphere I |
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Carbonate equilibria in solutions exposed to the atmosphere II |
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Ca2+ and HCO3- concentrations in natural waters. Part I: a plot |
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Ca2+ and HCO3- concentrations in natural waters. Part Ia: an inset |
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Ca2+ and HCO3- concentrations in natural waters. Part Ib: an inset |
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Ca2+ and HCO3- concentrations in natural waters. Part II: observations |
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The reaction for equilibrium of CaCO3 with natural waters |
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Reactions for the dissolution of CaCO3 |
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Reactions for the precipitation of CaCO3 |
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Degassing of CO2 and precipitation of CaCO3 |
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Adsorption of hydrated Mg2+ on calcite
as an inhibitor of calcite growth |
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Carbonate minerals
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Patterns in the compositions of minerals I: carbonates and sulfates |
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Patterns in the compositions of minerals VI: a summary |
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Cation sites in the common carbonate minerals |
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CaCO3 minerals |
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X-ray diffraction (XRD) of aragonite and calcite |
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Stability and solubility of carbonate minerals of divalent cations |
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Factors favoring precipitation of CaCO3 as calcite or as aragonite |
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Adsorption of hydrated Mg2+ on calcite
as an inhibitor of calcite growth |
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Mg-bearing carbonate minerals |
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Solubility of common carbonate minerals |
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Occurrence of common carbonate minerals |
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The diversity of carbonate minerals |
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Density of Minerals I: Inter-radical cations |
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Density of Minerals VI: The effect of structural H2O |
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Density of Minerals VII: The effect of OH- in oxysalts |
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Density of Minerals VIII: The significance of crystal structure |
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Color in carbonate minerals |
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Isotopic geochemistry of carbonate materials
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Oxgyen isotope composition of calcite as a function of temperature and water composition |
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A graphic explanation of fractionation of oxygen isotopes between water and calcite |
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Oxygen isotope fractionation in the precipitation of calcite and aragonite |
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The "clumped isotope" paleotemperature method for carbonates |
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Rock-water ratios and the stability of δ13C and δ18O values in carbonate materials |
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Isotopic mixing curves: a carbonate example |
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Carbonate materials
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Earth's naturally occurring carbonate materials |
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The many wonders of CaCO3 |
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C and O stable isotope compositions of Cenozoic Earth-surface materials of all sorts, Part I |
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C and O stable isotope compositions of Cenozoic Earth-surface materials of all sorts, Part II |
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Carbonate speleothems
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Degassing of CO2 in caves and precipitation of speleothems |
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Dating speleothems: Radiometric dating via U-series disequilibrium I |
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Dating speleothems: Radiometric dating via U-series disequilibrium II |
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Controls on the δ13C and δ18O of spelean CaCO3 |
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C and O stable isotope compositions of speleothems |
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Sources of C and O in the CaCO3 of speleothems, or,
Why δ13C varies more than δ18O in speleothems |
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Isotopic evolution of cave waters with degassing of CO2 and evaporation |
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Pedogenic carbonates
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C and O stable isotope compositions of pedogenic carbonates |
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δ13C and δ18O profiles in pedogenic carbonates |
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Pedogenic CaCO3 (caliche) as a record of ancient
atmospheric concentration of CO2 |
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Marine carbonates and the carbon cycle
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Variation in concentration of solutes in the oceans III: Carbon dioxide (CO2) |
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Variation in concentration of solutes in the oceans IIIa: Carbon dioxide and the carbonate compensation depth (CCD) |
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Variation in δ13C of dissolved inorganic carbon in the oceans |
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The carbon, and carbonate, cycle |
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Box models of the long-term carbon cycle |
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The δ13C record of marine limestones |
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The δ18O record of marine limestones |
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Boron in marine calcite as an indicator of ancient PCO2 |
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Lithification of sediments to sedimentary rocks I: Proceses |
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Lithification of sediments to sedimentary rocks II: Possible pathways |
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Lithification of sediments to sedimentary rocks III: Compaction |
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Lithification of sediments to sedimentary rocks IV: Cementation |
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Terms of use: Academic instructors are encouraged to use the material above in their classes, either as in-class illustrations or as handouts. Permission from the author for such use is not required, but notice to the author of such use is appreciated. Permission from the author is required for use in publications, Web-based documents, or other non-classroom use.