Geochemistry/geochemical

KEYWORDS regional geochemistry, geochemical mapping, web mapping, Canada, New... 

Core participation in mantle geochemistry Geochemical Society Ingerson... 

Walker D. (2000) Core participation in mantle geochemistry Geochemical Society Ingerson Lecture, GSA Denver, October 1999. Geochim. Cosmochim. Acta 64, 2897 -2911. 

Lovell J. S. (2000) Oxygen and carbon dioxide in soil air. In Handbook of Exploration Geochemistry, Geochemical Remote Sensing of the Subsurface (ed. M. Hale). Elsevier, Amsterdam, vol. 7, pp. 451-469. 

Otdel Khimii (Chemistry Section). Consultants Bureau. Geokhimiya (Geochemistry). Geochemical Society, University of Texas. 

Kawabe, I. and Masuda, A. (2001) The original examples of lanthanide tetrad effect in solvent extraction a new interpretation compatible with recent progress in REE geochemistry. Geochem. /., 35, 215-224. 

In the geochemistry of fluorine, the close match in the ionic radii of fluoride (0.136 nm), hydroxide (0.140 nm), and oxide ion (0.140 nm) allows a sequential replacement of oxygen by fluorine in a wide variety of minerals. This accounts for the wide dissemination of the element in nature. The ready formation of volatile silicon tetrafluoride, the pyrohydrolysis of fluorides to hydrogen fluoride, and the low solubility of calcium fluoride and of calcium fluorophosphates, have provided a geochemical cycle in which fluorine may be stripped from solution by limestone and by apatite to form the deposits of fluorspar and of phosphate rock (fluoroapatite [1306-01 -0]) approximately CaF2 3Ca2(P0 2 which ate the world s main resources of fluorine (1). 

R. W. FairbriiXjE, Encyclopedia of Geochemistry and Environmental Sciences, Van Nostrand, New York, 1972.. See sections on Geochemical Classification of the Elements Sulfates Sulfate Reduction-Microbial Sulfides Sulfosalts Sulfur Sulfur Cycle Sulfur Isotope Fractionation in Biological Processes, etc., pp. 1123 - 58. 

Fig. 11-13 Volume percent of sedimentary rocks as a function of age. (Modified with permission from A. B. Ronov (1964). On the post-Cambrian geochemical history of the atmosphere and hydrosphere. Geochemistry 5,493-506, American Geological Institute.)...

There are two main aims in applications of PTLC in organic geochemistry (1) assessment of the bulk group composition of soluble organic matter by its fractionation and (2) separation of a particular selected group of compounds with geochemical meaning. The important factor in technique selection should be the repeatability of... 

Sakai, H., Osaki, S. and Tsukagishi, M. (1970) Sulfur and oxygen isotopic geochemistry of sulfate in the black ore deposits of Japan. Geochem. J., 4, 21-39. 

Shikazono, N., Utada, M. and Shimizu, M. (1995) Mineralogical and geochemical characteristics of hydrothermal alteration of basalt in the Kuroko mine area, Japan Implications for the evolution of back arc basin hydrothermal system. Applied Geochemistry, 10, 621-642. 

Watanabe, T. (1973) Some problems on the geochemistry of the Kuroko deposits. Preprint of Symposium on the Kuroko, Geochem. Soc. Japan Tokyo (in Japanese), 86 pp. 

Hedenquist, J.W. (1991) Preface to the Special Issue The Geochemistry of Newly Developed Geothermal Systems in Japan. Geochemical J., 25, 199-202. 

Ishizuka, H., Kawanobe, Y. and Sakai, H. (1990) Petrology and geochemistry of volcanic rocks dredged from the Okinawa Trough and active back-arc basin. Geochem. J., 24, 75-92. 

Shikazono, N. (1993) Influence of hydrothermal flux on arsenic geochemical balance of seawater. Chikyuka-gakii (Geochemistry), 27. 135-139 (in Japanese). 

Simoneit, B.R.T., Philip, R.P., Jeden, P.D. and Galimov, E.M. (1984) Organic geochemistry of Deep Sea Drilling Project sediments from the Gulf of California - Hydrothermal effects on unconsolidated diatomic ooze. Org. Geochem., 17, 173-205. 

In geochemistry, the introduction of RMs did not take place until 1951 but, once RM usage became a regular part of geochemical analysis, the consequences were not far short of amazing. For many years geochemical analysts had been concerned about the accuracy of their determinations of major elements in rocks, but it was the potential of emission spectrometry for the determination of trace elements which set off the production of the first rock Certified Reference Materials (CRMs),... 

Goldschmidt VM (1929) The Distribution of the Chemical Elements. Proceedings of the Royal Institution of Great Britain 26 73-86, as quoted in Mason B, Victor Moritz Goldschmidt Father of Modern Geochemistry, The Geochemical Society San Antonio TX184 pp. 

Hoffman SJ (1989) The past and the future — What lies ahead for exploration geochemistry and the AEG. foum Geochem Explor 34 103-113. 

Kane JS (1992) Reference samples for use in analytical geochemistry their availability, preparation, and appropriate use. Joum Geochem Explor 44 37-63. 

Bourdon B, Turner S, Henderson GM, Lundstrom CC (2003) Introduction to U-series geochemistry. Rev Mineral Geochem 52 1-21... 

Yanase N, Payne TE, Sekine K (1995) Groundwater geochemistry in the Koongarra ore deposit, Australia 2. Activity ratios and migration mechanisms of uranium series nuclides. Geochem J 29 31-54... 

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