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Charles Strachan Hutchison

Bio: Charles Strachan Hutchison is an academic researcher. The author has contributed to research in topics: Fluorescence spectrometry & Petrography. The author has an hindex of 1, co-authored 1 publications receiving 259 citations.

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Book
01 Jan 1974
TL;DR: In this paper, the practical aspects of commonly used petrographic techniques that are generally applicable to igneous and metamorphic rocks are discussed, including thin-section preparation, grain size, modal analysis, and photomicrography.
Abstract: Contents include: Thin-section preparation. Aids in thin-section study. Grain size, modal analysis, and photomicrography. Rotation methods for the polarizing microscope. Mineral separation, Powder methods of x-ray diffraction. Application of x-ray powder data to specific mineral groups. Specific gravity determination, Refractive index determination. X-ray fluorescence spectrometry. Atomic absorption spectrophotometry. Determination of chemical components not attainable by the foregoing methods. Display of data. Thermal analysis techniques. References. Appendix. Index. This handbook stresses the practical aspects of commonly-used petrographic techniques that are generally applicable to igneous and metamorphic rocks, Author is with the University of Malaya, Kuala Lumpur, Malaysia. -- AATA

262 citations


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Journal ArticleDOI
TL;DR: 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.

573 citations

Journal ArticleDOI
TL;DR: In this paper, the authors applied correlation analysis to investigate the relationships between petrographical and engineering properties of granitic rocks, and found that the influence of the textural characteristics on the engineering properties appears to be more important than the mineralogy.

460 citations

Journal ArticleDOI
TL;DR: In this article, the authors investigated the relationship between strength and petrographical properties of sandstones, to construct a database as large as possible, to perform a logical parameter selection routine, and to develop a general prediction model for the uniaxial compressive strength.

360 citations

Journal ArticleDOI
Abstract: A line-heat source apparatus was assembled for the purpose of measuring thermal conductivities of particulate samples under low pressures of a carbon dioxide atmosphere. The primary result of this project is the compilation of the first comprehensive suite of measurements of the dependence of thermal conductivity on particle size. The thermal conductivity increases with increasing particle size and atmospheric pressure. In particular, over the range of Martian atmospheric pressures, from 1 to 7 torr, the thermal conductivity was found to be empirically related to approximately the square root of the particle diameter and the square of the cubed root of the atmospheric pressure. At the average pressure of the Martian surface (6 torr) the thermal conductivity varies from 0.011 W/m K, for particles less than 11 μm in diameter, to 0.11 W/m K, for particles 900 μm in diameter. These results differ significantly from the particle size dependence estimated for Mars from previous measurements, except for 200-μm particles, whose thermal conductivity is 0.053 W/m K. The thermal conductivities of larger particles are lower than the previous estimate, by 40% at 900 μm, and the thermal conductivities of smaller particles are higher than the previous estimate, by 60% at 11 μm. These newer estimates agree with other lines of evidence from Martian atmospheric and surficial processes and lead to improved particle size estimates for most of the planet's surface.

299 citations

Journal ArticleDOI
TL;DR: 5-FU was successfully intercalated into the interlayer of montmorillonite both by free surface absorption and OH replacement and the composite of 5-FU/mont is expected to achieve in situ release for colorectal cancer therapy in future applications.

278 citations