Ostwald Ripening of Clays and Metamorphic Minerals

Eberl, Dennis D.; Środoń, Jan; Králík, Martin; Taylor, Bruce E.; Peterman, Zell E.

doi:10.1126/science.248.4954.474

Cited by 166 publications

(128 citation statements)

References 12 publications

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“…Velde and Medhioub (1988), Jahren and Aagaard (1989), and Hillier and Velde (1991) have shown distinct temperature-dependent chemical compositional trends in authigenic chlorite. This supports continuous reerystaUization of chlorite consistent with Ostwald ripening as found by Eberl et al (1990) and Jahren (1991). Evidence for the dynamic growth of chlorite is also expressed in compositional trends within single chlorite grains from the core of the crystal to the rim (Jahren 1991).…”

Section: Introductionsupporting

confidence: 51%

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Diagenetic Illite-Chlorite Assemblages in Arenites. I. Chemical Evolution

Jahren

Aagaard

1992

Clays and clay miner.

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Abstract--Authigenic chlorites and illites coexisting in clastic reservoir sandstones have been studied by energy dispersive X-ray spectroscopy (EDS) in the transmission electron microscope (TEM). All 16 samples studied are drill or sidewall cores from sandstones of relatively uniform age situated offshore Norway with burial depths ranging between 2400 m and 5000 m and representing temperatures between 90"C and 1800C. Chlorites and illites with authigenic equilibrium type texture and morphology were analyzed by EDS. Tetrahedrai AI and octahedral Fe+Mg in chlorite increases with burial at the expense of Si and vacant octahedral positions in the chlorite structure. Illites show a clear increase in K. These factors indicate that a continuous chemical modification of these minerals takes place in the diagenetic interval studied through continuous dissolution and precipitation reactions.

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Section: Introductionsupporting

confidence: 51%

“…Following the lead of Chai (1974) and Baronnet (1982), Ostwald ripening-related recrystallization of minerals in natural systems has been studied by Eberl and Srodon (1988), Inoue et al (1988) and Eberl et al (1990). Their studies suggest that authigenie illites follow closed system grain coarsening kinetics.…”

Section: Introductionmentioning

confidence: 99%

Diagenetic Illite-Chlorite Assemblages in Arenites. I. Chemical Evolution

Jahren

Aagaard

1992

Clays and clay miner.

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“…If f also depends on L, some distortions from the ideal log normal case can, however, be expected. This feature is qualitatively observed for many (although not all) crystalline substances (Eberl et al, 1990). Manipulating Equation (9), one can eventually obtain the Langevin equation for the random variable y = lnL…”

Section: Geometric Brownian Motion (Gbm) Modelmentioning

confidence: 94%

On the prediction of psd in antisolvent mediated crystallization processes based on fokker-planck equations

Grosso

Baratti

Romagnoli

2010

Braz. J. Chem. Eng.

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-A phenomenological model for the description of antisolvent mediated crystal growth processes is presented. The crystal size growth dynamics is supposed to be driven by a deterministic growth factor coupled to a stochastic component. Two different models for the stochastic component are investigated: a Linear and a Geometric Brownian motion terms. The evolution in time of the particle size distribution is then described in terms of the Fokker-Planck equation. Validations against experimental data are presented for the NaCl-waterethanol anti-solvent crystallization system. It was found that a proper modeling of the stochastic component does have an impact on the model capabilities to fit the experimental data. In particular, the GBM assumption is better suited to describe the antisolvent crystal growth process under examination.

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“…Sometimes termed "particulate" or "population" dynamics, this approach has been popularized by chemical engineers (a classic text is by Randolph and Larson (1988)) applied to, e.g. industrial scale batch crystallization (Ramkrishna 2000), but is rarely used in treatments for subsurface reactive transport (Eberl et al 1990;Steefel and Van Cappellan 1990;Dewers and Reches 2004). Including a complete size and/or pore distributions can be critical in accurately describing water-rock interaction as mineral grain sizes in the lower tail of a crystal size distribution may have minimal volume, but possess the bulk of reactive surface area.…”

Section: Texture Distributions and Population Balance Approachmentioning

confidence: 99%

“…B and D are the so-called "birth" and "death" functions which can include physics such as nucleation, agglomeration, aggregation, fracturing and healing of grains, etc. Ostwald ripening, in which case the growth velocity depends on L or size-dependent growth, is a special case of Equation 4.1.29 (Eberl et al 1990). Approaches like Equation 4.1.29 are common in studies of microbial population dynamics (for example, see Lauffenberger 1991).…”

Section: Texture Distributions and Population Balance Approachmentioning

confidence: 99%

Nuclear Energy Advanced Modeling and Simulation (NEAMS) Waste Integrated Performance and Safety Codes (IPSC) : FY10 development and integration.

Criscenti¹,

Sassani²,

Argüello³

et al. 2011

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This report describes the progress in fiscal year 2010 in developing the Waste Integrated Performance and Safety Codes (IPSC) in support of the U.S. Department of Energy (DOE) Office of Nuclear Energy Advanced Modeling and Simulation (NEAMS) Campaign. The goal of the Waste IPSC is to develop an integrated suite of computational modeling and simulation capabilities to quantitatively assess the long-term performance of waste forms in the engineered and geologic environments of a radioactive waste storage or disposal system. The Waste IPSC will provide this simulation capability (1) for a range of disposal concepts, waste form types, engineered repository designs, and geologic settings, (2) for a range of time scales and distances, (3) with appropriate consideration of the inherent uncertainties, and (4) in accordance with robust verification, validation, and software quality requirements.Waste IPSC activities in fiscal year 2010 focused on specifying a challenge problem to demonstrate proof of concept, developing a verification and validation plan, and performing an initial gap analyses to identify candidate codes and tools to support the development and integration of the Waste IPSC. The current Waste IPSC strategy is to acquire and integrate the necessary Waste IPSC capabilities wherever feasible, and develop only those capabilities that cannot be acquired or suitably integrated, verified, or validated. This year-end progress report documents the FY10 status of acquisition, development, and integration of thermal-hydrologicchemical-mechanical (THCM) code capabilities, frameworks, and enabling tools and infrastructure.iv ACKNOWLEDGEMENTS

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Ostwald Ripening of Clays and Metamorphic Minerals

Cited by 166 publications

References 12 publications

Diagenetic Illite-Chlorite Assemblages in Arenites. I. Chemical Evolution

Diagenetic Illite-Chlorite Assemblages in Arenites. I. Chemical Evolution

On the prediction of psd in antisolvent mediated crystallization processes based on fokker-planck equations

Nuclear Energy Advanced Modeling and Simulation (NEAMS) Waste Integrated Performance and Safety Codes (IPSC) : FY10 development and integration.

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