 | | Book | | Anthony J. Why te The Meteorites of Alberta Digitized by the Internet Archive in 2011 http://www...org/details/meteoritesofalbeOOwhyt Meteorites of Alberta Hmm pftjGwB 1 }''>' Ji raTraJ aTBfTraS ... Meteorites of Alberta DQ£\ The University of Alberta Press 1 Published by The University of Alberta Press...Edmonton, Alberta, Canada T6G 2E Copyright © 2009, Anthony J. Whyte. Library and Archives Canada Cataloguing...Publication Whyte, Anthony J., 1951- The meteorites of Alberta / Anthony J. Whyte. Includes bibliographical references |  | | Journal (article/letter/editorial) | | fraotionation methods of powdered meteorite samples. An ordinary chondrite, Bruderheim, and a Type I enstatita...typical ordinary chondrite sample we selected Bruderheim (BAADSUAARD et al., 1961). A fresh sample w&s...therefore chosen not to report d&s from this meteorite tit this time. A direct comparison of ordinary...consistent with the solidification age of the meteorite and the primordial ratio of strontium isotopes...obtain the entire HCl soluble fraction. ‘For Bruderheim three alternate treatments were compared. PreliminRasy |  | | Journal (article/letter/editorial) | | among whole-rock fragments of the L6 chondrite Bruderheim JOHNSON R. HAAS AND LARRY A. HASKIN Department...Abstract- Twenty -IOO-mg random fragments of the Bruderheim chondrite were analyzed by INAA to determine...minerals olivine + orthopyroxene, clinopyroxene, plagioclase, kamacite, taenite, troilite, chromite, and phosphate...proportions of minerals in each sample as well as the meteorite as a whole; accurate determination of the end...these analyses, which used only - 2 grams of the meteorite, are equivalent in accuracy to a single sample |  | | Journal (article/letter/editorial) | | TURNER, 1966) involved a study of the L6 chondrite Bruderheim which has a IC-Ar age of around 1800 Ma. It was...partial outgassing 550 f 50 Ma ago. A repeat of the Bruderheim me~uremen~ (TURNER et al., 1966) coupled with...to analyse argon from microgram regions of a meteorite, we might be able to detect areas outgassed recently...heating procedure on bulk (i.e. 10 mg) samples. The meteorite chosen for the study was an L6chondrite, Peace...contains abundant shock melted glass veins. This meteorite was chosen to investigate the young ages because |  | | Journal (article/letter/editorial) | | Chemical andMineralComposition of the Lost City Meteorite J. ROGERMARTIN,WELDONB. •NANCE, ANDPRATTH. JOHNSON...Spacecra]t Center Houston, Texas 77053 The Lost City meteorite was analyzed by X-ray diffraction and optical...Lost City meteorite in the It chemical group. The X-ray diffraction scans indicate the meteorite probably...The Lost City, Oklahoma,meteorite fell January 3, 1970. It was the first meteorite recovered utilizing the...documentingmeteorite falls [McCrosky, 1970]. Two samplesof the meteorite were sent to the Lunar Receiving Laboratory (LRL) |  | | Journal (article/letter/editorial) | | made of O18/O16 ratios of coexisting minerals (plagioclase, pyroxene, olivine) from nine ordinary chonclrites...Bjurbole (L4) has been considered an important meteorite in understanding the processes which produced...been studied by TAYLOR et al. (1965), who found plagioclase-pyroxene fractionations in basaltic achondrites...measurements on only one chondrite, Bruderheim, and concluded that the plagioclase and pyroxene had not crystallized...EXPERIMENTAL PROCEDURES Several grams of each meteorite were crushed in a steel mortar, ground in an agate |  | Oliver, P., Ralchenko, M., Samson, C., Ernst, R. E., McCausland, P. J. A., West, G. F. (2018) Enhanced nondestructive characterization of ordinary chondrites using complex magnetic susceptibility measurements. Meteoritics & Planetary Science, 53 (3) 433-447 doi:10.1111/maps.13028 | Journal (article/letter/editorial) | | 1125 Colonel By Drive, Ottawa, Ontario K1S 5B6, Canada 2 Faculty of Geology and Geography, Tomsk State...University, 1151 Richmond St., London, Ontario N6A 5B7, Canada 4 Department of Physics, University of Toronto...Toronto, 60 St George St, Toronto, Ontario M5S 1A7, Canada * Corresponding author. E-mail: peter.oliver@carleton...uncertainty level was far lower than the intra-meteorite variability for the Gao–Guenie suite suggesting...limits the interpretation of results in terms of meteorite characteristics such as magnetic mineralogy or |  | Okada, Akihiko, Shima, Masako, Murayama, Sadao (1979) MINERALOGY, PETROGRAPHY AND CHEMISTRY OF THE CHONDRITE, KAMIOMI, SASHIMA-GUN, IBARAKI-KEN, JAPAN. Meteoritics, 14 (2) 177-191 doi:10.1111/j.1945-5100.1979.tb00492.x | Journal (article/letter/editorial) | | nickel-iron and troilite with minor amount of plagioclase, clinopyroxene, apatite and chromite. The average...in 1973 as to the circumstance of fall of the meteorite at Kamiomi. Her father told him that this stone...Polished sections and polished thin sections of meteorite samples were prepared for microscopic investigation...silicate minerals, olivine, orthopyroxene and plagioclase, were determined by the oil-immersion method...radiation. Mineralogy and petrography Kamiomi meteorite is an ordinary chondrite composed maily of olivine |  | | Journal (article/letter/editorial) | | and 9.47 wt. % feldspar, respectively, in the Bruderheim chondrite. The former value is based on modal...1.00 4.2 a 4.3 a ohondrit,es Beth Furnace Bruderheim Coon Butte$ Fish&S Forksvillet 0.46 0.84 0.77...HEY and EASTON(1967) as an extremely friable meteorite consisting of angular fragments of enstatite embedded...and metal. Distribution of rare gases in this meteorite suggest that it is a post-crystallization breccia...both within grains and among grains in the same meteorite are essentially uniform. However, this is not |  | | Report (issue) | | Series A - Mining Geology. Akita, Japan. Canada Geog. Bull. -- Canada Geographical Bulletin. Geographical...Department of Mines and Technical Surveys. Ottawa, Canada. Com. Glacial. Italiano Boll. -- Bollettino del...specimens collected from the Pamlico formation, Harry County, South Carolina, yield C-14 dates in excess of...and the deglaciation of northernmost Labrador: Canada Geog. Bull., no. 17, p. 23-56, 1962. From detailed...the 1.61.9 m.y. ages obtained from biotite and plagioclase separates from the overlying tuffaceous sediments |  | | Journal (article/letter/editorial) | | 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...Bishopville aubrite, 26: 1096-1098 Ar-K method, Bruderheim meteorite, 26: 6132 aubrite, Bishopville, 29: 1085-1099 |  | | Journal (article/letter/editorial) | | a function of meteorite chemistry and of the cosmic-ray energy spectrum in the meteorite. A second, more...variations in 749 PHILIP J. CRESSY. JR. and 750 meteorite chemistry, cosmic ray shielding, and possibly...possibly (CRESSY and RANCITELLI, 1974) meteorite orbit. Measurements of cosmogenic 3He, *lNe, “Ne. 38Ar, and...and 26A1 in different meteorite classes and separated mineral phases of a few meteorites now permit reasonably...analyzed samples for ‘“Al and/or noble gases. Seven meteorite specimens. weighing between 150 and 300 g, were |  | McCOY, T. J., EHLMANN, A. J., MOORE, C. B. (1997) The Leedey, Oklahoma, chondrite: Fall, petrology, chemistry and an unusual Fe, Ni-FeS inclusion. Meteoritics & Planetary Science, 32 (1) 19-24 doi:10.1111/j.1945-5100.1997.tb01236.x | Journal (article/letter/editorial) | | University, Fort Worth, Texas 76129., USA. 3Center for Meteorite Studies, Arizona State University, Tempe, Arizona...1996 August 21) Abstract-The Leedey, Oklahoma, meteorite shower fell on 1943 November 25, following a fireball...kg. Although investigated by the two premier meteorite hunters of the day, Oscar E. Monnig and Harvey...of meteorite chemistry (1979). Here we provide a comprehensive report of the fireball, meteorite recovery...recovery and current depositories of the Leedey meteorite, as well as an examination of the petrology and |  | | Journal (article/letter/editorial) | | Revised version received April 9, 1979 The Kirin meteorite, a large (>2800 kg) H5 chondrite, fell in Kirin...about 0.5 b.y. for K-2, suggesting that this meteorite may have suffered two discrete collisional events...Introduction The Kirin (sometimes called Jilin) meteorite shower fell on March 8, 1976, in the district...mass recovered was about 2800 kg [1]. The Kirin meteorite has been described in some detail [ 1 - 4 ] ....troilite, with minor amounts of clinopyroxene, plagioclase (albite), orthoclase, schreibersite, taenite |  | Ferreira, M.P., Macedo, R., Costa, V., Reynolds, J.H., Riley, J.E., Rowe, M.W. (1975) Rare-gas dating, II. Attempted uranium-helium dating of young volcanic rocks from the madeira archipelago. Earth and Planetary Science Letters, 25 (2) 142-150 doi:10.1016/0012-821x(75)90190-9 | Journal (article/letter/editorial) | | phenocrysts of augite (5-15 %), olivine (10%) and plagioclase (less than 1%). The olivine phenocrysts tend...(60-70%), plagioclase (15%), iron oxides (5-10%) and olivine (less than 5%). In PS-6/197 the plagioclase occurs...oriented plagioclase laths with interstitial augite, brown glass, and iron oxides. The plagioclase is slightly...Berkeley interlaboratory standard "Bru" (Bruderheim meteorite) for which helium analyses have been obtained...0) as inferred from the calibration run on the Bruderheim standard. We carried out the calibration procedure |  | | Journal (article/letter/editorial) | | diopside with some iron-rich olivine and accessory plagioclase and augite [ 1,2]. Lafayette was discovered in...different from the 4.5 AE (1 AE = 10 9 yr) primary meteorite age. Since low ages are presumably due to partial...dating any specific event in the history of a meteorite. Observation o f the decay products of extinct...particularly in the 1150°C and 1300°C fractions. The plagioclase probably accounts for most of the K and is thus...K actually in the pyroxene, the tail end of plagioclase degassing, or another phase altogether. The LAV2 |  | | Report (volume) | | Institute Review. Agricultural Institute of Canada. Ottawa, Ont., Canada. Alaska Dept. Health and Welfare Water-Hydrol...Petroleum Resources Annual Report. Victoria, B.C., Canada. Bull. Marine Sci. Gulf and Caribbean-Bulletin...Water Resources Center Report. Berkeley, Calif. Canada Defence Research Board, Directorate Sci. Inf. Services...Report. Ottawa, Ont., Canada. Canada Dept. Mines and Tech. Surveys Geog. Br. Mem.--Canada Department of Mines...Geographical Branch Memoir. Ottawa, Ont., Canada. VIII Canada Dept. Mines and Tech. Surveys Mineral Resources |  | | Journal (article/letter/editorial) | | University of Toronto, Toronto, Ontario M5S lA 7, Canada Introduction While a great deal of effort is currently...model in U-Pb dating. This is exemplified by meteorite data (Turner 1969) and terrestrial results (Harrison...sample." Since much 40Ar/39Ar modeling sprang from meteorite studies, it is necessary to discuss these to some...low-temperature portions of a number of stone meteorite experimental age spectra and found that eight...39 A 1.0 RELEASED Experimental data for the Bruderheim chondrite with matching theoretical curve (for |  | | Journal (article/letter/editorial) | | matrix was separated into olivine/pyroxene, plagioclase, and metal concentrates. For all samples He,...the plagioclase (mainly anorthite) concentrate, representing a few percent of the total meteorite, contains...material. Bruderheim chondrules were found to have formed 2 Ma earlier to 10 Ma later than Bruderheim whole...still constitutes one of the major problems of meteorite research. The chondrule formation models fall...high energy particles before compaction into the meteorite parent object. With the exposure ages we can also |  | | Report (issue) | | Structural and compositional properties of iron meteorite groups ___________ The geochemical behavior of...ABBREVIATIONS The following abbreviations for the meteorite classes are used throughout the tables and elsewhere;...percent) ; all others (<0.01 percent). A list of meteorite minerals is provided, and a tabulation of elemental...(Mg,Fe,Ca)Si0 3 Diopside Ca(Mg,Fe)Si 2 0 6 Plagioclase (Na,Ca) (Al,Si)AlSi 2 0 8 (About 10 mole percent...Orthopyroxene, olivine, nickel-iron Pyroxene, plagioclase, nickel-iron Enstatite Hypersthene Olivine Olivine |  | | Journal (article/letter/editorial) | | Marty Keywords: thermochronology impact Moon meteorite a b s t r a c t Results of whole-rock 40 Ar/39...performed MDD modeling on ALH84001, a Martian meteorite, and explored the existence of a “kinetic crossover”...crossover” between Ar diffusion in plagioclase and pyroxene to explain aspects of the age spectrum (apparently...localized heating of pyroxene to explain a class of meteorite 40 Ar/39 Ar age spectra, including results for...northwestern China in 1976 remains the largest meteorite fall ever recorded, with over two metric tonnes |  | | Book | | Fe)2Si04 (Mg, Fe)SiO3 (Ca, Mg, Fe)SiO; Diopside Plagioclase Ca(Mg, Fe)Si20¢ (Na, Ca) (Al, Si)4O, (47% Ni)...minerals are quartz and aluminosilicates; the common meteorite minerals are anhydrous, whereas hydrated minerals...(26) Diopside, olivine Hypersthene, plagioclase Pigeonite, plagioclase Stony-irons Pallasites (2) Siderophyre...Orthopyroxene, olivine, nickel-iron Pyroxene, plagioclase, nickel-iron Irons Hexahedrites (7) Octahedrites...actual extraterrestrial abundances; irons dominate meteorite finds, since they are resistant to weathering |  | | Journal (article/letter/editorial) | | first age spectrum on a sample of the disturbed Bruderheim chondrite, Turner et al. (1966) presented an...complex ex solution features (e.g., intermediate plagioclase). Recently, Gillespie et al. (1982) have presented...Ar-bearing phases is straightforward. 330 The Kirin meteorite provides an excellent example of the amount of...age spectra on different samples of the Kirin meteorite. All three spectra are characterized by apparent...reached. Anomalies in the age spectra of calcic plagioclase were demonstrated to result in part from complex |  | | Journal (article/letter/editorial) | | • 1: () ~j • 4gr [2 3 p 4 665 my; and plagioclase treated with HF, 570 my. For 8L550 the apparent...apparent ages are whole-rock, 1120 my and plagioclase, 430 my. Diabase dikes and other hypabyssal intrusive...I19- 21]. K-Ar ages on whole-rock samples and plagioclase from 13 of these diabase dikes are highly inconsistent...the apparent K-Ar ages are whole-rock, 850 my; plagioclase, r 4 'OCO 2O I k i 1 10 O ~ 20 39Ar ...differences in their conventional whole-rock and plagioclase K-Ar apparent ages. In addition, the spectra |  | | Journal (article/letter/editorial) | | thermal processes that of common minerals (e.g., plagioclase and phosphates) affect extraterrestrial materials... noble gas thermochronometers are present in one meteorite or returned sample, or where we can combine noble...characteristics. The way in which we interpret meteorite data is fundamentally tied to the inferred thermal...radioisotopic system are inversely correlated with meteorite metamorphic grade (i.e., 40Ar/ 39Ar ages obtained...(2020) studied a suite of eucrites—a type of meteorite thought to have originated from the large, differentiated |
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