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| Iroland A description of the meteorite which fell near Abee, Alberta, Canada* K. i-~. D A w s o I ~ , ...Petrological Sciences Division, Geological Survey of Canada and D. E. P ~ s o ~ s .Physical Metallurgy :Division...Abstract--The Ahee meteorite, which fell at 54~13' N, 113°00' W, north of Edmonton, Alberta, on 9 June 1952...metallurgical study of the niekcl-iron of the meteorite indicates that relatively coarse grains of a kamacite-eohenite...e whereas the interior of the crust contains martensite grains produced by the heabing and quenching |
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| Printed in The Netherlands [6] THERMAL HISTORY OF THE ABEE ENSTATITE CHONDRITE J.M. HERNDON Department of Chemistry...on the thermal history of the constituents of the Abee enstatite chondrite. From thermal experiments on...actual samples of the meteorite, it is concluded that tile metal phase of Abee cooled from above 700°C...inconsistent with inferences derived from studies of the Abee type I enstatite chondrite [11,12] nor in conflict...on laboratory-prepared alloys and on samples of Abee which confirm previous arguments for rapid cooling |
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| $17.00 + .00 Pergamon PII S0016-7037(96)00335-3 Abee and related EH chondrite impact-melt breccias ALAN...revisedform September 17, 1996) A b s t r a c t - - T h e Abee EH chondrite is an impact-melt breccia. About 8...magmatically on Earth, occur throughout the rock. Abee experienced two episodes of impact melting with...second impact event produced melt which engulfed the Abee fragments and dark inclusions, primarily digesting...melt to quench. Previously described diamonds in Abee containing typical solar-system isotopic compositions |
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| which the meteorites experienced. See ted. THE METEORITE CONCENTRATION MECHANISM AT ALLAN HILLS, ANTARCTICA...study of ice ablation and movement as related to meteorite finds. The triangulation chain is composed of...(upwelling) of the ice in the area of highest meteorite concentration approximately balances this yearly...centimeters on the east. Although the mechanism of meteorite transport and concentration is imperfectly understood...during incorporation of the inclusion into the meteorite. In one portion, there is a sharp contact between |
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| Aubrites Shock effects Asteroidal parent bodies Meteorite breccias Impact melting Sinoite a b s t r a c...impact-melt globules and spherules. No single meteorite possesses all of these features, although many...history (4.50–4.54 Ga ago); only one enstatite-rich meteorite (EH4 Bethune) appears to have been impact heated...Enstatite-chondrite impact-melt breccias and impact-melt rocks Abee is the prototypical enstatite-chondrite impact-melt...Fig. 2 of Rubin and Keil, Fig. 1. A slab of the Abee EH-chondrite breccia showing its irregularly shaped |
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| TREMORGIO (CANTON TICINO) AS A POSSIBLE QUARTERNARY METEORITE IMPACT CRATER IN THE SWISS ALPS Kurt Bachtiger...the author had, some years ago, the idea of a meteorite impact crater in the Quarternary, i.e. 20-50,000...some interpretations will be attempted. 171 K Meteorite Type (ppm) johnstown (whole rock) Di 853...Total Ar 39_Ar40 age (G.Y.) 4.38 4.07 maximum Meteorite minimum Bjurbole 4.12 3.46 3.96 3.98 1.62 ...determined Ag, Bi, Co, Cs, Ga, In, Se, Te, Tl and Zn in Abee samples heated at 700°C under 173 Ne at 10-3 |
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| preserved on heat-treating or forging of specific meteorite specimens, so in most cases recognition of altered...ablation and corrosion crust is different when the meteorite has been reheated by man (Rasgata specimens of...meteorites (Bacubirito). Preservation on an iron meteorite of the ...heating is the best guarantee that the meteorite was never maltreated. On an older iron the corrosion products... structures reflecting the early history of the meteorite and those produced during atmospheric passage |
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| Melt rock samples have been examined from Brent (Canada. 3.8 km, 414 my). Saaksjarvi (Finland. 5 krn, 490...(France. 23 krn, 150-170 my) and East Clearwater (Canada. 23 km, 216 my). In all cases the melt rock bulk...689-690. SOME OBSERVATIONS ON THE MECHANISM OF METEORITE CONCENTRATION IN VICTORIA LAND. ANTARCTICA John...appeared to meet the established criteria for meteorite concentration. Since this field exhibited a step-like...ablation might not be of primary importance in meteorite accumulation. It is suggested that the Allan Hills |
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| tektites, photographs, a: 864-855 Ablation rate iron meteorite “Thule”, 25: 98 Absolute abundance of the chromium...1085-1099 Norton County, 27: 939-947 Norton County, Br analysis, 29: 470 Norton County, Cl an&y&s, 22:...22: 478 Norton County, lanthanids pattern, 20: 242243, 244-245 Norton County, organic oompounds snalysed...snalysed, 27:805-834 Norton County, tantalum in, 29: 46 oxygen isotopes in minerals, 22: 492 Pasamonte, Ca isotopes...Bruderheim meteorite, 26: 6132 aubrite, Bishopville, 29: 1085-1099 cosmic-ray, Bruderheim meteorite, 26: 662 |
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| SENSITIVITY STABLE CARBON ISOTOPE ANALYSIS FOR METEORITE AND LUNAR STUDIES P.I. Abell, A.E. Fallick and...events which disturbed the U-Ph system. All these meteorite Ph isotope compositions, when corrected for the...phenomenon is not due to contamination of the meteorite samples by terrestrial lead. Further, the data...mineral fractions were isolated from the Murchison meteorite by a succession of chemical treatments and grain...have made a 117Rb·1l7Sr study in a number of meteorite classes,ranging from chondrites to iron meteorites |
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| Professor of Chemistry and Geology Director, Nininger Meteorite Collection Arizona State University JOHN WILEY...Chemistry and Geology, Director of: the Nininger Meteorite Collection, Arizona State University, Tempe, Arizona...announced the transfer of the outstanding Nininger Meteorite Collection to Arizona State University. Throughethe...the National Science Foundation, the Nininger Meteorite Collection was established primarily for purposes...(minerals The of meteorites) relationship of and meteorite Moore (achondrites), studies to the Earth |
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| and on druse clinopyroxene from the D’Orbigny meteorite. The average structure refinement of the studied...721-723. [7] Tonui E. et al. (2002) Antarctic Meteorite Research 15:38-58. [8] Alexander C.M.O'D. et al...Department, Western University, London, Ontario, Canada. Introduction: Primitive chondritic meteorites...fractionation trends are observed in different meteorite groups that are likely linked either with thermal...3:65.7 respectively. The parent bodies of these meteorite types inherited the isotopic heterogeneities from |
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| St. Louis MO 63130, USA. The present state of meteorite chemistry as established by Wasson and Kallemeyn...including Mg, Si, Sr. the Earth lies close to CI meteorite as previously established. The estimate of si...ratios in the Earth's mantle. as well as on the meteorite trend permils us to estimate the composition of...difference in their relative abundances among meteorite classes reflects differences in the dust!gas ratio...HIGH-DENSITY INTERSTELLAR GRAPHITE FROM THE MURCHISON METEORITE. S. Amari 1.2, E. Zinner), and R. S. Lewis-, IMcDonnell |
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| elements in Apollo 15 samples: Implications for meteorite influx and JOHN W. MorGan, URS KRAHENBUHL, volatile...from vaporization of silicate material during meteorite, micrometeorite, or particle bombardment of the...elements in Apollo 11 lunar rocks: Implications for meteorite influx and origin of moon. Proc. Apollo 11 Lunar...Planet. Sci. Lett. 9, 181-184. Keil K. (1969) Meteorite composition. In Handbook of Geochemistry (V. 1)...suggests that the Imbrium impacting body was an iron meteorite rather than the moonlet suggested by Anderson |
