 | | Journal (article/letter/editorial) | | Petrography of isotopically-dated clasts in the Kapoeta howardite and petrologic constraints on the evolution...basaltic rock fragments separated from the howardite Kapoeta. Clasts C and p have been dated at -4.55 AE and...melt. They thus provide good evidence that the Kapoeta parent body produced basaltic magmas shortly after...‘young’ magmatism on the Kapoeta parent body. Kapoeta is a ‘regolith’ meteorite, and mineral-chemical and... The Fe0 and MnO contents of all pyroxenes in Kapoeta fall near a line with FeO/MnO - 35, suggesting |  | | Journal (article/letter/editorial) | | 1998. Printed in USA. An acid-etch study of the Kapoeta achondrite: Implications for the argon-36/argon-38...13) Abstract-Noble gases were measured in the Kapoeta achondrite by means of step-wise closed-system...from closed-system acid-etching measurements on ilmenite from lunar soil 71501. A similar value also had...been obtained by Frick et al. (1988) from 71501 ilmenite using oxidation at relatively low temperatures...oxidation of a metal separate from the Weston meteorite (Becker and Pepin, 1991), and from an uncontrolled |  | | Journal (article/letter/editorial) | | University Corvallis, OR 97331 Paul P. Sipiera Meteorite Research Group William Rainey Harper College Palatine...from olivine-normative to quartz-normative. Like Kapoeta, it contains pyroxene grains that range up to highly...those occurring in diogenites, Monticello and Kapoeta are exceptions to the simple two-component mixing...Jones, discovered the Monticello meteorite on 29 May 1982. The meteorite was lying on the shoreline of Lake...Among reasonable explanations it is possible the meteorite fell into ~hallow water and the rapid quench caused |  | | Journal (article/letter/editorial) | | Meteoritical Society, 1998. Printed in USA. The Kapoeta howardite: Implications for the regolith evolution...thin sections, made from the hand sample, of the Kapoeta howardite and its many diverse lithic clasts were...measurements). Petrographic studies reveal that Kapoeta consists of a fine-grained matrix made mostly of...two regolith generations are represented in the Kapoeta sample we studied. The clast assemblage suggests...clast D is a true regolith breccia within the Kapoeta howardite (breccia-within-breccia), while clast |  | Lindsay, Fara N., Delaney, Jeremy S., Herzog, Gregory F., Turrin, Brent D., Park, Jisun, Swisher, Carl C. (2015) Rheasilvia provenance of the Kapoeta howardite inferred from ∼1 Ga 40Ar/39Ar feldspar ages. Earth and Planetary Science Letters, 413. 208-213 doi:10.1016/j.epsl.2014.12.049 | Journal (article/letter/editorial) | | com/locate/epsl Rheasilvia provenance of the Kapoeta howardite inferred from ∼1 Ga 40 Ar/39 Ar feldspar...Keywords: Vesta howardite argon dating Rheasilvia Kapoeta a b s t r a c t We report 40 Ar/39 Ar ages for...lithological components of the brecciated howardite Kapoeta and compare the ages with results for asteroid...asteroid 4 Vesta as observed by the Dawn mission. Our Kapoeta sample has an unusual, millimeter wide glass vein...chronologically distinct components. The howardite Kapoeta, a member of the howardite–eucrite–diogenite clan |  | | Journal (article/letter/editorial) | | 10%, according to Singer (per- plagioclase, with ilmenite and minor quartz. To test how sensitive the bulk...extensive volcanic eruptions of magnetite and ilmenite. Four of the many / 0.5" / / 116 BAIRD AND...9-13 6-38 3-13 0- 4 0- 2 Shergotty meteorite e Kapoeta meteorite a 50.4 0.8 6.9 19.1 9.3 10.1 1.4 0...Hypersthene Enstatite % Olivine Forsterite % Magnetite Ilmenite Mars (nominal) 4 25 45 19 50 42 0 0 1.9 Analog...equilibrium conditions). Furthermore, the Shergotty meteorite contains 2% titanomagnetite with TiO2/Fe304 = |  | | Report (issue) | | parent rocks. Introduction As the importance of meteorite impacts as a mechanism producing lunar land forms...clinopyroxene (augite ± pigeonite) 17%—34%, and opaques (ilmenite and/or magnetite) 2%-12%. Olivine may be present...clinopyroxene 45%-55%, and opaques 15%-2O% (including ilmenite, armalocolite, chromespinel, ulvospinel, rutile...the Lake Wilson-Mt. Davies region in northwest South Australia; (2) a group with high Ca/Al ratio centered...centered around Charlotte Waters on the South Australia—Northern Territory border and extending into southwest |  | Lunning, Nicole G., Welten, Kees C., McSween, Harry Y., Caffee, Marc W., Beck, Andrew W. (2016) Grosvenor Mountains 95 howardite pairing group: Insights into the surface regolith of asteroid 4 Vesta. Meteoritics & Planetary Science, 51 (1) 167-194 doi:10.1111/maps.12580 | Journal (article/letter/editorial) | | cm, a preatmospheric size comparable to that of Kapoeta, the largest known regolithic howardite. The paired...features of the groups and subgroups of the HED meteorite clan are outlined in Table 1. In this study, we...evaluate which stones may have been part of a single meteorite fall that broke apart during atmospheric transit...of the howardite, eucrite, and diogenite (HED) meteorite clan. Multiple lithologies have previously been...potentially represent a pairing group. For uncommon meteorite types, it is easier to argue that these came from |  | | Journal (article/letter/editorial) | | equilibrium distribution in silicate phases; meteorite weathering; fusion crust Received: 14 January...FeS, chromite FeCr2 O4 , hercynite FeAl2 O4 , ilmenite FeTiO3 , and schreibersite (Fe, Ni)3 P and its...The authors studied two falls: Novo Urei (this meteorite gave the name “ureilites” for the group of primitive...82506, Elephant Moraine (EET) 87517, EET 87511, Meteorite Hills (MET) A78008, and ALHA77257. The room temperature...and Martian Meteorites) 4 of 49 The Zakłodzie meteorite, an ungrouped enstatite-rich achondrite, was studie |  | | Journal (article/letter/editorial) | | IDPs with depressed Zn/Fe ratios relative to CI meteorite values are generally depleted in 4He compared...Orgueil, which is often viewed as a reasonable meteorite analogue for IDPs, has 40Ar/36Ar ~ 1 (Jeffery...<20 micron size fraction. Measurements with MS-South yielded an HD-corrected 3He/4He ratio for the Springwater...bias for He in the Saint Louis spectrometer MS-South is 10% or less. Accordingly, no instrumental mass...that included splitting the sample gas between MS-South and a second spectrometer normally used for Xe analysis |  | | Journal (article/letter/editorial) | | the surface, so rapidly that portions of the meteorite and the ground which were in contact were vaporized...people wondered about what would happen if a large meteorite fell to the ground, but they were limited by the...meteorites and the corollary that the size of the meteorite was quite small relative to the crater it could...an equal mass of TNT. The kinetic energy of a meteorite changes with the square of the velocity and hence...far more probable that the angle of impact of a meteorite with earth or moon is low rather than high. Previously |  | | Journal (article/letter/editorial) | | unmelted, matrix chromite grains in the same meteorite. Chromite veinlets (typically 0.5–2 m thick and...al., 1981). Less abundant oxides in OC include ilmenite (FeTiO3), commonly associated with chromite (Snetsinger...rutile (TiO2), a rare phase mainly associated with ilmenite and chromite (Buseck and Keil, 1966). Magnetite...veins and melt pockets (Bogard et al., 1995). The meteorite also contains chromite-plagioclase assemblages...varieties (wt. %) in ordinary chondrites. crm var meteorite 1 1 2 3 4 4 4 4 4 4 4 HW MIL Jartai |  | | Journal (article/letter/editorial) | | therefore also allow to re-evaluate the lunar and meteorite data, which is done here. In particular, claims...composition and flux, based on lunar samples and some meteorite data. magnitude references comments 3 He/4...limit of 20% for last 1–2 Ga. c: Antiquity of meteorite samples (Heber et al., 2001) unconstrained. potential...gas and nitrogen data obtained from lunar and meteorite data largely in the light of the Genesis data...4.1–6.1 1620–2940 meteoritic Fe-Ni Acfer 111 meteorite 650 ± 60 570–610 47 ± 3 41–42 2840 sun 807 |  | | Journal (article/letter/editorial) | | outer 5 10 p m of regolith grains from the Kapoeta meteorite, corresponding to flare particle energies...primitive chondrites. Abundances as a function of meteorite class and petrologic type. Geochim. Cosmochim...solar helium, neon, and argon in individual lunar ilmenite grains: Surface effects and a temporal variation...Composition of solar flare noble gases preserved in meteorite parent body regolith. J. Geophys. Res. 96, 19...and other noble gas components in the Murchison meteorite. Geochim. Cosmochim. Actu 56,2907-2921. YANIV |  | | Journal (article/letter/editorial) | | tektites, photographs, a: 864-855 Ablation rate iron meteorite “Thule”, 25: 98 Absolute abundance of the chromium...and APB in nine 27. 987 Kapoeta, light and’d& structure, 27: 718-739 Kapoeta, noble gases in, 26: 665-680...Bruderheim meteorite, 26: 6132 aubrite, Bishopville, 29: 1085-1099 cosmic-ray, Bruderheim meteorite, 26: 662...plutons, Nevada and Utah, 26: 665 granites from South Africa, 29: 1115 granitio rocks, Poland, 26: 1069...Also, Bogou, other meteorites, 29: 1327 Alabama meteorite, Felix, carbonaceous chondrite, 24: 70-82 pelecypod |  | | Book | | METEORITE MINERALOGY Meteorites are fascinating cosmic visitors. Using accessible language, this book...book documents the history of mineralogy and meteorite research, summarizes the mineralogical characteristics...photographs of meteorite minerals, and with an accompanying online list of meteorite minerals, this book...book provides a useful resource for meteorite researchers, terrestrial mineralogists, cosmochemists,...students in these fields. a l a n e . r u b i n is a meteorite researcher who recently retired from the University |  | | Report (Issue volume) | | the planet which our ancestors called Culmen, a meteorite, known to scientists under the name of Croix d’Honneur...end of him. Woe to the mortal on whose head the meteorite falls!” (p. 141-142). Les Mystéres de l'Infini...photographs J. M. BOYCE PI Geologic structure of the eastern mare J. D. WASKOM 2729 basins R.A. DEHON and...SPETTEL, and 3479 Contents, Volume COMPARATIVE Meteorite 3 PLANETOLOGY Studies Trace element evidence...absorption spectra of a Ti*' fassaite from the Allende meteorite: A discussion. Amer. Mineral. 58, 955-961. Cohen |  | | Book | | Breach, Science Publishers, Inc. 44 Park Avenue South New York, N.Y. 10016 , Editorial office for the...minerals are quartz and aluminosilicates; the common meteorite minerals are anhydrous, whereas hydrated minerals...actual extraterrestrial abundances; irons dominate meteorite finds, since they are resistant to weathering...at least as very unusual objects). Over 80% of meteorite falls are chondrites, and over 90% of these belong...subject. Current ideas include volcanism on the meteorite parent bodies, splash droplets formed in collisions |  | | Book | | работе [97] в мессбауэровском спектре говардита Kapoeta отношение относительных площадей компонент спектров...говардиты-эвкриты-диогениты Название и тип метеорита Kapoeta (говардит) Г, мм/с Piplia Kalan (эвкрит) 0.44...0.30±0.01 (диогенит) Kapoeta (говардит) 0.29±0.02 light region 0.29±0.02 Kapoeta (говардит) 0.28±0.02...Weisberg, M. K. Systematics and evaluation of meteorite classification / M. K. Weisberg, T. J. McCoy,...– 2014. – P. 373. 3. Rubin, A. Mineralogy of meteorite groups / A. Rubin // Meteoritics & Planetary Science |  | | Journal (article/letter/editorial) | | between the degree of '60-depletion in the bulk meteorite and oxidation state, since presumably the most...for several clasts and matrix samples from each meteorite. References: Batchelor and Sears (1989) Meteoritics...21, 1379. (3) Jungck (1982) Pure 22Ne in the Meteorite Orguei/: an attempt to characterize the carrier...acquiring TL data for 2-3 matrix samples from each meteorite, and for the following clasts: EET87513, eucrite...well defined except for a single point in each meteorite. This point always corresponds to the first dissolution |  | | Journal (article/letter/editorial) | | the IMACNMNC, including 17 from the Allende CV3 meteorite (Ma, 2015a) and high-pressure phases such as bridgmanite...grossite hematite hercynite hibonite hibonite-(Fe) ilmenite kamiokite kangite krotite lakargiite loveringite...hydromagnesite hydroxylapatite icosahedrite idaite illite ilmenite indialite irarsite iridarsenite iridium iron iron...sources plausibly responsible for the bulk of meteorite metamorphism and melting: (1) the decay of shortlived... Ca, Fe, Na and Cl from other regions of the meteorite (most likely chondrule mesostases and small matrix |  | | Book | | METEORITE RESEARCH ASTROPHYSICS AND SPACE SCIENCE LIBRARY A SERIES OF BOOKS ON THE RECENT DEVELOPMENTS...Holland VOLUME 12 METEORITE RESEARCH PROCEEDINGS OF A SYMPOSIUM ON METEORITE RESEARCH HELD IN VIENNA...the publisher INTRODUCTION The Symposium 'Meteorite Research' was conceived originally at the second...need to strengthen international co-operation in meteorite research, asks that the International Atomic Energy...discussed ranged from the computer-assisted study of meteorite orbit statistics, through problems of composition |  | Stevens, John G., Khasanov, Airat M., Miller, J. W., Pollak, Herman, Li, Zhe - Eds. (2002) Mössbauer Mineral Handbook (2nd ed.) Mössbauer Effect Data Center, Asheville, NC. | Book (edition) | | Pollak University of Witwatersrand Johannesburg, South Africa Zhe Li Chinese Academy of Sciences Beijing...T.Jull, Quat. Res. 53(2),131-42(2000) Ancient meteorite finds and the Earth's surface environment. (Chem...101(1970) Quadrupolar Hyperfine Anisotropy in Ilmenite C.L.Herzenberg, and D.L.Riley, Science (Washington...X-ray and Mossbauer Studies of Troilite in Iron Meteorite W.Prandl, and F.E.Wagner, Z. Kristallogr., Kristallgeom...Mossbauer Effect Observations of the "X-Phase" in the Ilmenite-Hematite Series 74A056 C.Aurisicchio, and F.Sgarlata |  | | Report (Issue volume) | | elements in Apollo 11 lunar rocks: Implications for meteorite influx and origin of moon 1117 P. W. GAST, N....in the Barwell and St. Severin 1neteorites. In Meteorite Research, (editor P. Millman), pp. 267- 274. D...metal of stone and stony-iron meteorites. In Meteorite Research, (editor P. Millman), pp. 355- 362. D...portions of the two lava groups, minus about 5 % ilmenite, plus about 15 % gabbroic anorthosite. The regolith...errors have been reproduced using mixtures of ilmenite (containing 300 ppn1 zirconium) and a standard |  | | Book | | Radioactivity in Lunar Rocks: Implications for Meteorite Infall, Solar-Wind Flux, and Formation Conditions...highly zoned with iron-rich rims, plagioclase, ilmenite, olivine, and cristobalite. Three new minerals...is consistent with the observed occurrence of meteorite material in the soil. Many elements such as potassium...major minerals: (O) olivine, (P) plagioclase, (1) ilmenite, and (C) clinopyroxene. (Center) Chondrite normalized...experimental error as the value obtained from meteorite lead. The apparent ages are shown in Table 2. |
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