Results 121 to 130 of about 12,533 (182)
Some of the next articles are maybe not open access.
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
openaire +1 more source
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.
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
The thermochemical activity of dolomite occurred in dolomite–palygorskite
Applied Clay Science, 2016Abstract 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 +6 more
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
Epigenetic Dolomitization and the Origin of Xenotopic Dolomite Texture
SEPM 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.
openaire +1 more source
Dolomitization, Dolomite Distribution, Reservoir Rocks: ABSTRACT
AAPG Bulletin, 1970Approximately 80% of the hydrocarbon reserves in carbonate rocks in North America are found in rock that is essentially pure dolomite. In many reservoirs the field limits are determined by the distribution of dolomite, because the dolomitization process is conducive to the production of a favorable reservoir rock.
openaire +1 more source