Calcite Dolomite Article About Calcite Dolomite
Calcite Dolomite Article About Calcite Dolomite
Zhengzhou, Henan China
24 hours At your service

Calcite Dolomite Article About Calcite Dolomite

  • Home
  • / Product
  • / Calcite Dolomite Article About Calcite Dolomite

Exsolution of dolomite and application of calcite–dolomite ...

Calcite–dolomite solvus geothermometry is a versatile method for the estimation of metamorphic temperature because of its simplicity. However, in medium- to high-grade metamorphic rocks the accuracy of estimating temperature by the integration of unmixed dolomite and calcite is hampered by the heterogeneous distribution of unmixed dolomite, difficulties in distinguishing

More

Application of calcite, Mg‐calcite, and dolomite as Raman ...

13.05.2020  The Raman spectra of calcite, Mg-calcite, and dolomite were measured under ambient and high pressure–temperature (P-T) conditions using a hydrothermal diamond anvil cell, for the purpose of developing new pressure sensors suited for experiments investigating the physicochemical properties of carbonate minerals.By fitting the Raman vibrational frequencies

More

A Raman spectroscopic comparison of calcite and dolomite ...

03.01.2014  The Raman spectra of calcite and dolomite in the 1700–100 cm −1 region are shown in Fig. 1.It is reported that the Raman spectral differences and band component analysis are found to be very useful in order to differentiate the carbonate minerals , , . Fig. 1 illustrates the Raman spectra of calcite (Cal) and dolomite (Dol). Some variations in both the band

More

New evidence from a calcite-dolomite carbonatite dyke for ...

23.01.2007  New data on Sr and Nd isotope composition and major and trace element distribution in dolomite-calcite carbonatite dykes at Bayan Obo are provided, and a Mid-Proterozoic age is deduced. The dykes and the neighbouring massive dolomite (H8) body have similar geochemical characteristics, interpreted to indicate a carbonatitic magmatic origin. The

More

Dolomite-calcite textures in early carbonatites of the ...

In early calcite carbonatites of the Kovdor ore deposit four morphological types of dolomite are represented. In the first type, dolomite microcrystals occur as lamellae enclosed by optically continuous calcite. In the second, dolomite microcrystals occur as segmented rods, plates and xenomorphic grains, enclosed by optically discontinuous calcite, and in the third, dolomite is

More

Dolomite - an overview ScienceDirect Topics

Calcite is depleted initially, followed successively by dolomite-ankerite and siderite (Blowes and Ptacek, 1994). As the carbonate content of the waste dissolves, the pH is buffered to near neutral. The depletion of carbonate minerals through consumption by acid-neutralization reactions has been documented for a number of settings, including base-metal mine tailings impoundments

More

Low-Temperature Synthesis of Disordered Dolomite and High ...

17.12.2021  To identify and characterize the dolomite and dolomite precursor phases in our experiments, we follow these definitions: Gregg et al. describe high-magnesium calcite (HMC) as a compound containing 4–36 mol % MgCO 3, Fang and Xu describe disordered dolomite as >36 mol % MgCO 3 with no cation ordering, and protodolomite as >36 mol % MgCO 3 with the

More

Exsolution of dolomite and application of calcite–dolomite ...

Calcite–dolomite solvus geothermometry is a versatile method for the estimation of metamorphic temperature because of its simplicity. However, in medium- to high-grade metamorphic rocks the accuracy of estimating temperature by the integration of unmixed dolomite and calcite is hampered by the heterogeneous distribution of unmixed dolomite, difficulties in distinguishing

More

Calcite and dolomite in intrusive carbonatites. I ...

27.06.2015  Zaitsev AN, Polezhaeva L (1994) Dolomite-calcite textures in early carbonatites of the Kovdor ore deposit, Kola peninsula, Russia: their genesis and application for calcite-dolomite geothermometry. Contrib Mineral Petrol 115:339–344. Article Google Scholar

More

Application of calcite, Mg‐calcite, and dolomite as Raman ...

13.05.2020  The Raman spectra of calcite, Mg-calcite, and dolomite were measured under ambient and high pressure–temperature (P-T) conditions using a hydrothermal diamond anvil cell, for the purpose of developing new pressure sensors suited for experiments investigating the physicochemical properties of carbonate minerals.By fitting the Raman vibrational frequencies

More

Dolomite - an overview ScienceDirect Topics

Calcite is depleted initially, followed successively by dolomite-ankerite and siderite (Blowes and Ptacek, 1994). As the carbonate content of the waste dissolves, the pH is buffered to near neutral. The depletion of carbonate minerals through consumption by acid-neutralization reactions has been documented for a number of settings, including base-metal mine tailings impoundments

More

dolomite Formation, Structure, Properties, Uses, Facts ...

Dolomite, type of limestone, the carbonate fraction of which is dominated by the mineral dolomite, calcium magnesium carbonate. Along with calcite and aragonite, dolomite makes up approximately 2 percent of the Earth’s crust. Learn more about the structure, properties, and uses of dolomite in this article.

More

New evidence from a calcite-dolomite carbonatite dyke for ...

23.01.2007  New data on Sr and Nd isotope composition and major and trace element distribution in dolomite-calcite carbonatite dykes at Bayan Obo are provided, and a Mid-Proterozoic age is deduced. The dykes and the neighbouring massive dolomite (H8) body have similar geochemical characteristics, interpreted to indicate a carbonatitic magmatic origin. The

More

Radiation-Induced Changes in Single Crystal Calcite and ...

05.01.2022  Two analogues of aggregates (calcite and dolomite) found in nuclear power plant (NPP) concrete have been neutron irradiated to fluences up to 2 × 1020 n/cm2 at 52 °C and 4 × 1019 n/cm2 at 95 °C (E > 0.1 MeV). X-ray diffraction studies showed that these aging conditions affected crystallography of both calcite and dolomite, with both showing a growth in their unit

More

Low-Temperature Synthesis of Disordered Dolomite and High ...

17.12.2021  To identify and characterize the dolomite and dolomite precursor phases in our experiments, we follow these definitions: Gregg et al. describe high-magnesium calcite (HMC) as a compound containing 4–36 mol % MgCO 3, Fang and Xu describe disordered dolomite as >36 mol % MgCO 3 with no cation ordering, and protodolomite as >36 mol % MgCO 3 with the

More

Experimental study of the influence of the content of ...

01.01.2022  The purpose of the study presented in the article is to determine the effect of different contents of calcite and dolomite in a carbonate rock on the effectiveness of acid action. In this work, the core samples from deposits of the Perm Krai (Russia) has been used, which differ in the material content of components (calcite and dolomite); and subsequently, the

More

Clumped isotope acid fractionation factors for dolomite ...

20.01.2022  The ∆ 47 values for both the dolomite and calcite samples are shown in Fig. 1, Fig. 2 and Table 3, Table 4. For the 90 °C reactions, there were no statistically significant (p > 0.1) differences in the ∆ 47 values between CAB and SV methods for either dolomite or calcite samples. Download : Download high-res image (470KB)

More

Exsolution of dolomite and application of calcite–dolomite ...

Calcite–dolomite solvus geothermometry is a versatile method for the estimation of metamorphic temperature because of its simplicity. However, in medium- to high-grade metamorphic rocks the accuracy of estimating temperature by the integration of unmixed dolomite and calcite is hampered by the heterogeneous distribution of unmixed dolomite, difficulties in distinguishing

More

Calcite and dolomite in intrusive carbonatites. I ...

27.06.2015  Zaitsev AN, Polezhaeva L (1994) Dolomite-calcite textures in early carbonatites of the Kovdor ore deposit, Kola peninsula, Russia: their genesis and application for calcite-dolomite geothermometry. Contrib Mineral Petrol 115:339–344. Article Google Scholar

More

Application of calcite, Mg‐calcite, and dolomite as Raman ...

13.05.2020  The Raman spectra of calcite, Mg-calcite, and dolomite were measured under ambient and high pressure–temperature (P-T) conditions using a hydrothermal diamond anvil cell, for the purpose of developing new pressure sensors suited for experiments investigating the physicochemical properties of carbonate minerals.By fitting the Raman vibrational frequencies

More

Dolomite - an overview ScienceDirect Topics

Calcite is depleted initially, followed successively by dolomite-ankerite and siderite (Blowes and Ptacek, 1994). As the carbonate content of the waste dissolves, the pH is buffered to near neutral. The depletion of carbonate minerals through consumption by acid-neutralization reactions has been documented for a number of settings, including base-metal mine tailings impoundments

More

dolomite Formation, Structure, Properties, Uses, Facts ...

Dolomite, type of limestone, the carbonate fraction of which is dominated by the mineral dolomite, calcium magnesium carbonate. Along with calcite and aragonite, dolomite makes up approximately 2 percent of the Earth’s crust. Learn more about the structure, properties, and uses of dolomite in this article.

More

New evidence from a calcite-dolomite carbonatite dyke for ...

23.01.2007  New data on Sr and Nd isotope composition and major and trace element distribution in dolomite-calcite carbonatite dykes at Bayan Obo are provided, and a Mid-Proterozoic age is deduced. The dykes and the neighbouring massive dolomite (H8) body have similar geochemical characteristics, interpreted to indicate a carbonatitic magmatic origin. The

More

Radiation-Induced Changes in Single Crystal Calcite and ...

05.01.2022  Two analogues of aggregates (calcite and dolomite) found in nuclear power plant (NPP) concrete have been neutron irradiated to fluences up to 2 × 1020 n/cm2 at 52 °C and 4 × 1019 n/cm2 at 95 °C (E > 0.1 MeV). X-ray diffraction studies showed that these aging conditions affected crystallography of both calcite and dolomite, with both showing a growth in their unit

More

Low-Temperature Synthesis of Disordered Dolomite and High ...

17.12.2021  To identify and characterize the dolomite and dolomite precursor phases in our experiments, we follow these definitions: Gregg et al. describe high-magnesium calcite (HMC) as a compound containing 4–36 mol % MgCO 3, Fang and Xu describe disordered dolomite as >36 mol % MgCO 3 with no cation ordering, and protodolomite as >36 mol % MgCO 3 with the

More

Experimental study of the influence of the content of ...

01.01.2022  The purpose of the study presented in the article is to determine the effect of different contents of calcite and dolomite in a carbonate rock on the effectiveness of acid action. In this work, the core samples from deposits of the Perm Krai (Russia) has been used, which differ in the material content of components (calcite and dolomite); and subsequently, the

More

Clumped isotope acid fractionation factors for dolomite ...

20.01.2022  The ∆ 47 values for both the dolomite and calcite samples are shown in Fig. 1, Fig. 2 and Table 3, Table 4. For the 90 °C reactions, there were no statistically significant (p > 0.1) differences in the ∆ 47 values between CAB and SV methods for either dolomite or calcite samples. Download : Download high-res image (470KB)

More