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Dolomitization and the causes of dolomitization dolomite reservoir
Chinese Journal of Geochemistry, 2012This paper utilizes multi-methods, such as core observation, slice identification, isotope analysis, trace element analysis, fluid inclusion technique and so on, to study the causes of the dolomite in the Nanpu Sag and the origins of the dolomite reservoir.
Bojiang Fan +4 more
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Chapter 7 Dolomites and Dolomitization
1979Publisher Summary This chapter discusses dolomites and dolomitization. There are numerous kinds of dolomite. According to numerous investigators, primary precipitation of dolomite crystals, particularly in marine environments, probably represented in Holocene carbonate sediments, is of little significance when considering the great bulk of ancient ...
George V. Chilingar +3 more
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Estimation of Dolomite Formation: Dolomite Precipitation and Dolomitization
Journal of the Geological Society of India, 2016Abstract: Reactive-transport models are developed here that produce dolomite via two scenarios: primary dolomite (no CaCO3 dissolution involved) versus secondary dolomite (dolomitization, involving CaCO3 dissolution). Using the available dolomite precipitation rate kinetics, calculations suggest that tens of meters of thick dolomite ...
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II.—Dolomitization and the Leicestershire Dolomites
Geological Magazine, 1918In the district north of Ashby-de-la-Zoueh dolomitized Carboniferous Limestone crops out where the Leicestershire border adjoins that of South Derbyshire. The dolomites, which attain a thickness of nearly 900 feet in this area, have hitherto received very little attention.
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Epigenetic dolomitization and the origin of xenotopic dolomite texture
Journal of Sedimentary Research, 1984Abstract Xenotopic texture, which is commonly observed in pre-Cenozoic rocks, is defined here as a mosaic of anhedral crystals with irregular or curved intercrystalline boundaries and, usually, undulatory extinction. Xenotopic dolomite texture is similar in appearance to neomorphic limestone textures.
Jay M. Gregg, Duncan F. Sibley
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Fluidization characteristics of dolomite and calcined dolomite particles
Chemical Engineering Science, 2000Abstract Experimental measurements were performed of the minimum fluidization velocities and the terminal velocities of a bed of dolomite and its calcine. Using air, experiments were conducted in an 8.5 cm i.d. column with very narrow fractions of particles in a range of 0.14– 0.72 mm .
M Hartman, O Trnka, K Svoboda
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Dolomite-dolomite separation by a selective flocculation technique
Mining, Metallurgy & Exploration, 1995The viability of physico-chemical purification methods such as selective flocculation for the separation of two components having similar chemical compositions and the same crystal structure but different surface properties is demonstrated. A loss of selectivity was observed in a dolomite-dolomite mixture when polyethylene oxide (PEO) (five million ...
B. M. Moudgil, S. Mathur, S. Behl
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Carbonates and Evaporites, 2005
The wavelengths of nanometer-scale structural modulations in calcium-rich dolomite on the Latemar buildup, Dolomites, northern Italy vary as a function of composition, which is controlled by the temperature of dolomitizing fluids, and contact time with these fluids. Dolomites formed at the highest temperatures are the most magnesian and those formed at
Kathryn A. Schubel +2 more
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The wavelengths of nanometer-scale structural modulations in calcium-rich dolomite on the Latemar buildup, Dolomites, northern Italy vary as a function of composition, which is controlled by the temperature of dolomitizing fluids, and contact time with these fluids. Dolomites formed at the highest temperatures are the most magnesian and those formed at
Kathryn A. Schubel +2 more
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Journal of Applied Chemistry, 1952
AbstractThe thermal decomposition of dolomite at various constant temperatures and carbon dioxide pressures has been investigated by the ‘loss‐of‐weight method.’ Depending on these conditions, dolomite can be decomposed either stepwise to magnesium oxide and calcium carbonate (‘half‐burnt dolomite’) with subsequent dissociation of calcium carbonate, or
R. A. W. Haul, J. Markus
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AbstractThe thermal decomposition of dolomite at various constant temperatures and carbon dioxide pressures has been investigated by the ‘loss‐of‐weight method.’ Depending on these conditions, dolomite can be decomposed either stepwise to magnesium oxide and calcium carbonate (‘half‐burnt dolomite’) with subsequent dissociation of calcium carbonate, or
R. A. W. Haul, J. Markus
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Neoproterozoic marine dolomite hardgrounds and their relationship to cap dolomites
Precambrian Research, 2019Abstract Neoproterozoic cap dolomites are unusual and distinctive marker units that occur after large Cryogenian glaciations. Several thin dolomite units that have features resembling cap dolomites occur within the Cryogenian-Ediacaran succession of the Adelaide Geosyncline. While each of these dolomite units has distinctive features, they also share
Malcolm W. Wallace +4 more
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