Results 81 to 90 of about 178 (143)

Dolomitization and the causes of dolomitization dolomite reservoir

Chinese Journal of Geochemistry, 2012
This 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, Xiaoming Zhang, Jian Zhang, Xiongqi Pang, Chenglin Liu   +4 more
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Chapter 7 Dolomites and Dolomitization

1979
Publisher 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, D.H. Zenger, H.J. Bissell, K.H. Wolf   +3 more
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Estimation of Dolomite Formation: Dolomite Precipitation and Dolomitization

Journal of the Geological Society of India, 2016
Abstract: 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, 1918
In 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, 1984
Abstract 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, 2000
Abstract 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, 1995
The 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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The thermochemical activity of dolomite occurred in dolomite–palygorskite

Applied Clay Science, 2016
Abstract Dolomite–palygorskite (DP) composed of dolomite and palygorskite is a kind of special palygorskite. In this work, the phase, microstructure, and morphology of DP were characterized before and after calcination using X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), and transmission electron microscopy (TEM ...
JingJing Xie, Tianhu Chen, Bobo Xing, Haibo Liu, Qiaoqin Xie, Hongwei Li, Yucheng Wu   +6 more
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Dolomite microstructures and reaction mechanisms of dolomitization on the triassic Latemar buildup, Dolomites, northern Italy

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, David R. Veblen, David C. Elbert   +2 more
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