Journal ArticleDOI
Measurement of crystal size distributions
TLDR
In this paper, a modification of the Saltikov correction method is proposed that is more accurate and can account for different crystal shapes and fabrics, and population densities determined by this method differ by factors of 0.02 to 100 from those determined by the Wager method.Abstract:
Studies of crystal size distributions (CSD) can reveal much about how rocks solidify and under what conditions. Data from two-dimensional sections can be readily acquired at many different scales, from electron microscope images, thin sections, slabs, outcrops, and so on, but the conversion to true, three-dimensional values is complex. The widely used Wager method does not have a good theoretical basis and does not give accurate results. A modification of the Saltikov correction method is proposed here that is more accurate and can account for different crystal shapes and fabrics. Population densities determined by this method differ by factors of 0.02 to 100 from those determined by the Wager method. Published CSDs determined using other methods can be recalculated if the crystal shape and fabric parameters can be estimated. The method has been incorporated into a new program, CSDCorrections.read more
Citations
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References
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Journal ArticleDOI
Crystal size distribution (CSD) in rocks and the kinetics and dynamics of crystallization
TL;DR: In this article, the authors provide a formalism for the macroscopic study of kinetic and physical processes affecting crystallization, within which the explicit affect of chemical and physical process on the CSD can be analytically tested.
Journal ArticleDOI
Crystal size distribution (CSD) in rocks and the kinetics and dynamics of crystallization II: Makaopuhi lava lake
TL;DR: In this paper, a steady state crystal population balance equation is used to estimate the effective growth time (τ) of a sample from Kilauea Volcano, Hawaii, where the intercept of the intercept is J/G where J is nucleation rate.
Journal ArticleDOI
On the Interpretation of Crystal Size Distributions in Magmatic Systems
TL;DR: In this paper, the size distribution of a CSD in a single-stage system is analyzed and compared to the size distributions of the entire CSD for both batch and open systems, showing that the growth rate is approximately constant and nucleation rate apparently increases exponentially with time.
OtherDOI
Primary textures and mineral associations in the ultramafic zone of the Stillwater complex, Montana
TL;DR: In this article, a detailed description of the geology of the Ultramafic complex is presented. But the main focus is on the textural and areal distribution of the settled crystals, rather than the primary precipitate.
Journal ArticleDOI
3D particle size distributions from 2D observations : stereology for natural applications
TL;DR: In this article, the authors developed a general formulation for stereological analysis of particle distributions which is applicable to any particle size or size distribution (not limited to log-normal, unimodal, etc.).