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Magnetic separation of calcite and aragonite for use in radioactive carbon analysis
magnetic separation aragonite calcite cobalt Meigen’s solution peak intensity
2017/4/11
Aragonite and calcite often coexist; as such, separating these very similar minerals is an important step in undertaking
research on these two phases individually. One approach to discriminating betw...
Fluoride in coral aragonite related to seawater carbonate
coral, fluoride carbonate seawater temperature aragonite
2017/8/9
In order to elucidate the controlling factors for fluoride incorporation into coral aragonite (CaCO3), we determined the ratio of fluorine to calcium (F/Ca) in coral skeletons collected from Pohnpei (...
Identification of biogenetic calcite and aragonite using SEM
Calcite aragonite morphology geochemical difference Feigl’s staining method SEM
2009/12/7
Identification of calcite and aragonite is very important for studying different fossil or recent biomineralized skeletons. Problem occurs when scanning electron microscopy is used for studying calcit...
Modeling the marine aragonite cycle:changes under rising carbon dioxide and its role in shallow water CaCO3 dissolution
marine aragonite cycle changes carbon dioxide shallow water CaCO3 dissolution
2010/1/18
The marine aragonite cycle has been included in the global biogeochemical model PISCES to study the role of aragonite in shallow water CaCO3 dissolution. Aragonite production is parameterized as a fun...
Characterization method of Limestone according to the Formation Age on manufacturing process of aragonite precipitated calcium carbonate
Characterization method Limestone the Formation Age manufacturing process aragonite calcium carbonate
2012/3/28
Korea has about 68 hundreds million tons of limestone's reserves. Still, high-Ca2+ limestone containing more than 52% calcium oxide makes up for about 12% only; hence the need for securing and effecti...
Postindustrial enhancement of aragonite undersaturation in the upper tropical and subtropical Atlantic Ocean: The role of fossil fuel CO2
Postindustrial enhancement aragonite undersaturation upper tropical subtropical Atlantic Ocean fossil fuel CO2
2014/5/14
The dissolution of aragonite particles in the ocean primarily depends on the degree of undersaturation of seawater with respect to that mineral. Most of the upper Atlantic Ocean, particularly north of...
A calcite → aragonite-type phase transition in CdCO3
calcite → aragonite-type phase transition CdCO3
2012/4/5
Otavite(CdCO )recoveredfromexperimentsat P 170kbarand T 1000Ccon-tainedmaterialwiththearagonitestructure,indicatingthataphasetransitionoccurred.
Thelatticeparametersofthearagonite-typeCdCOare a 4.989...
In situ X-ray diffraction of aragonite and dolomite at high pressure and high temperature: Evidence for dolomite breakdown to aragonite and magnesite
X-ray diffraction aragonite dolomite high pressure high temperature Evidence aragonite magnesite
2012/4/5
Energy-dispersive X-ray powder diffraction spectra have been collected for aragonite (CaCOr) and dolomite [CaMg(COr)r] at high pressure and high temperature, using synchro-tron radiation and a cub...