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Radon on Mars and the Moon derived from Martian and lunar meteorites. [PDF]
Sci RepGirault F +7 more
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Raman spectroscopic analysis of carbonates on a CY-type carbonaceous chondrite Yamato 980115: unexpectedly abundant terrestrial weathering products. [PDF]
Anal SciUrashima SH +4 more
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THE CHEMICAL COMPOSITION OF METEORITES
International Geology Review, 1960At present, investigations on the chemical composition of meteoritic matter are being made in two directions: 1) the determination of the main constituents of meteorites of different classes. (A generalization of these data led to the classification of meteorites depending on their chemical composition); 2) the determination of all the element contents
A. A. Yavnel, M. I. Dyakonova
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Isotopic composition of meteoritic thallium
Earth and Planetary Science Letters, 1969Thallium contents have been determined as 2.5 ± 0.5 × 10−6 in Ivigtut, Greenland, galena; 7 ± 2 × 10−10 in Plainview chondrite; 1.5 ± 0.3 × 10−9 in Canyon Diablo troilite; and 2.5 ± 0.5 × 10−10 in Canyon Diablo metal. The205Tl/203Tl ratio is identical within about 0.6% of that of terrestrial thallium reagent, thus yielding no indication of extinct ...
R.G. Ostic, H.M. El-Badry, T.P. Kohman
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Nitrogen isotopic compositions of iron meteorites
Geochimica et Cosmochimica Acta, 1993Iron meteorites analyzed in this study have nitrogen concentrations 70 microg/g or less and delta N-15 from -90 to +150 percent. Although the iron meteorites have a large range of delta N-15, most have values more negative than -50 percent. The nitrogen isotopic compositions were established by cosmochemical processes and were little modified by ...
Carol A Prombo, Robert N Clayton
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The Journal of Geology, 1947
The average composition, with respect to iron, nickel, and cobalt, of iron meteorites and the metal of stony meteorites has been determined by statistical study of the analyses of 320 meteorites. The average composition of iron meteorites is: Fe, 90.78 ± 0.26 per cent; Ni, 8.59 ± 0.24 per cent; Co, 0.631 ± 0.019 per cent. The average composition of the
Harrison Brown, Claire Patterson
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The average composition, with respect to iron, nickel, and cobalt, of iron meteorites and the metal of stony meteorites has been determined by statistical study of the analyses of 320 meteorites. The average composition of iron meteorites is: Fe, 90.78 ± 0.26 per cent; Ni, 8.59 ± 0.24 per cent; Co, 0.631 ± 0.019 per cent. The average composition of the
Harrison Brown, Claire Patterson
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Isotopic composition of silicon in meteorites
Geochimica et Cosmochimica Acta, 1986Abstract Samples of bulk meteorites show only mass-dependent fractionation of silicon isotopes. No isotopic anomalies were found. The variation of the ratios 29 Si/ 28 Si and 30 Si/ 28 Si over the meteorite classes is small; 1%. per mass unit difference.
Carol Molinivelsko +2 more
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Composition of Igneous Rocks, Stony Meteorites, and Iron Meteorites
1942ContentsPageTable 11. Average chemical analyses of certain types of plutonic igneous rocks (R. A. Daly)22. Approximate mineral compositions of principal types of plutonic igneous rocks (E. S. Larsen)33. Composition of stony meteorites (L. LaForge)44. Composition of iron meteorites and meteoritic iron (L.
R. A. Daly, E. S. Larsen, L. LaForge
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The Composition of Meteoritic Matter: I. The Composition of the Silicate Phase of Stony Meteorites
The Journal of Geology, 1947A statistical study has been made of the analyses of the silicate phases of 107 selected stony meteorites. Frequency-distribution curves have been plotted, and arithmetic means, together with standard deviations and precisions, have been calculated for the major constituents.
Harrison Brown, Claire Patterson
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