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| Printedin NorthernIreland Lead-lead age of the Bondoc meteorite ROYAL R. M&SFWLL Jet Propulsion Laboratory...concentration of lead in a portion of the Bondoc meteorite W~JX determined by the isotopic dilution technique...0.005 ppm. Isotopic ratios of the lead in the meteorite were found to be Pb*oe/Pb204 = 20.11, Pb807/Pbso4...in this meteorite is 137.7. THE BONDOC meteorite was recovered a few years ago from the Bondoc peninsula...peninsula of Luzon Island in the Philippines and was found not to fit into any of the previdusly described |
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| Netherlands 181 [11 FISSION-TRACK RETENTION AGE OF THE BONDOC MESOSIDERITE R.K. BULL and S.A. DURRANI Department...1980 Whitlockites have been extracted from the Bondoc mesosiderite and found to contain ~(0.7-2.7) ×...whitlockite track-retention age of 2.68 (+-0.30) Gyr for Bondoc, which is essentially independent of the initial...specificallyfor Bondoc [6] from Ni distributions in the metal phase. 1. Introduction 2. The Bondoc meteorite Mesosiderites...Myr, the slowest cooling rates known for any meteorite group. These overall rates could reflect either |
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| Meteorites, or What on Earth is a Meteorite? H. H. NININGER Meteorite Investigations, Sedona, Arizona ...allow an object the distinction of being called a meteorite unless and until it has been known to reach the...earth constitutes a sort of baptism into the meteorite fraternity I shall confine my discussion to those...the earth that has had its origin in space is a meteorite, except 239 METEORITICS, Vol. 3, No.4, December...range of characteristics we should look for in a meteorite. This places upon us a great responsibility as |
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| was observed in the following meteorites-Allegan, Bondoc, Estherville, Farmington, and vaca Muerta. The...did describe a similar phasefrom the Farmington meteorite in his list of ,,unidentified minerals." He suggested(correctty)...1965).we have found rutile in the meteoritesAIIegan,Bondoc, Estherville,Farmington, and vaca \{uerta; although...ilmenite is only sparselydistributed within the meteorite, although, wherever it does occur, it is in moderately...100.00 I The difference to 100 per cent is iron. The iron is probably not a constituent of the rutile |
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| mesosiderites, three iron meteorites, Bencubbin (unique) and Udei Station (iron with silicate inclusions)...Yamato-7301 and 48 ± 3 dpm S3Mn/kg Fe in Bondoc. The Bondoc mesosiderite was already known to have a...the metallic and silicate phases of St. Sdverin meteorite, as well as on published results of some high-energy...meteorites, on the other hand, primarily inform us of meteorite formation in space, preatmospheric size, and the...its high production yield from the abundant target iron by cosmic ray interaction such as S6Fe(p,a), Fe(p |
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| H.J,Axon and M.J.Nosir The Bondoc meteorite IM1 A metallo~a~hlc and mie~probe metallic nodule f ~ m...m e~mlnation of a the Bondoc Peninsula meteorite H.J. Axon and M.J. Naslr. Metallurgy Department,...P~elimin~y accounts of the Bondoo Peninsula (B.P.) meteorite by Krlnov (1962) and Nininger (1963) record a...~terial; condition ~ d 17% stony-iron class material and 11% iron class ~terial. material was present...several centimetres diameter, embedded in stony-iron ~terial. There appears to be no previous metallo- |
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| background of cosmic-ray tracks. The mesosiderite Bondoc contains 41 fission tracks/cm’, of which about...chemically fractionated from each other in this meteorite. Shocked meteorites show no consistent pattern...or radiogenic noble gases. Some meteorites, e.g. Bondoc, Serra de Mag&, and Mincy, retain gases more completely...tenuous (DUKE and SILVER,1967). THE DISRWTION of a meteorite parent body often In principle, this problem can...K-Ar ages as short as 052 and 0.61 AE (HEYOne meteorite successfully dated by this technique, MANN et |
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| different methods. Only in the case of ‘finds’, e.g. in Bondoc and some other stones of probably high terrestrial...times. 1. INTRODUCTION THE W(POSUREage of a meteorite provides important information about the radiation...rate of a cosmogenic radionuclide in a given meteorite is a function of several parameters, such as shielding...activity of stones. The main target element for 53Mn is iron. The contribution of other elements with Z > 26...,,) should represent an average over various meteorite sizes and sample depths. 2. ANALYTICAL PROCEDURES |
 | TERRIBILINI, Dario, EUGSTER, Otto, MITTLEFEHLDT, David W., DIAMOND, Larryn W., VOGT, Stephan, WANG, Daode (2000) Mineralogical and chemical composition and cosmic-ray exposure history of two mesosiderites and two iron meteorites. Meteoritics & Planetary Science, 35 (3) 617-628 doi:10.1111/j.1945-5100.2000.tb01442.x | Journal (article/letter/editorial) |
| cosmic-ray exposure history of two mesosiderites and two iron meteorites DARIOTERRIBILINII, OTTOEUGSTERl*, DAVIDW...chemical composition of two mesosiderites and two iron meteorites. For the mesosiderites Dong Ujimqin Qi...Rafriiti is not chemically related to any other meteorite class, whereas Ningbo is a type IVA octahedrite...gas nuclei and radionuclide activities. For the iron meteorites, cosmic-ray exposure ages were calculated...concluded that the parent bodies represented by these meteorite classes are very similar in bulk composition and |
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| the cooling of the parent body of the Toluue meteorite . . . . . . . . Jox N. WEBEX: ~tio~tion of the...the Mosabauer effect to silic8tS mineralogy--H. Iron silic&tesof unknown and complex eryst&l stru~t~ea...Neutron activation determination of van8 dium in iron meteorites 8m.l sulfide nodules . . . . . . . .... . BEIAN MASON 8nd J. NELEN: The Weatherford meteorite . . . . . . 667 661 Letter to the Editor: HAROLDC...LIPSCWTZ: X-rey diffraction study of kamacite from iron meteorites . . . . . . . . . . . . . . . J. G. MITCHELL: |
 | Begemann, F, Weber, H.W, Vilcsek, E, Hintenberger, H (1976) Rare gases and 36Cl in stony-iron meteorites: cosmogenic elemental production rates, exposure ages, diffusion losses and thermal histories. Geochimica et Cosmochimica Acta, 40 (3) 353-368 doi:10.1016/0016-7037(76)90213-1 | Journal (article/letter/editorial) |
| Printed in Great Brltam Rare gases and WI in stony-iron meteorites: cosmogenic elemental production rates...pallasite, Bencubbin (‘unique’) and Udei Station (‘iron with silicate inclusions’) have been analysed for...but they are now considered to be ‘unique’ and an ‘iron with silicate inclusions’, respectively (LOVERING...87.” Me 86.8 MAS 2432*2439 Me(&)27.5 ANT. Bondoc Me (2)684.9 Me(B)l St 25.7 St 12.5 Me 25..._- 12155c --------..----___ AML: American Meteorite Laboratory; GSI: Geological Survey of India, Calcutta; |
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| production rate (dpm/kg Fe) versus recovered meteorite mass revealed that the compensation by the secondariesfor...tracks help to decipher these records. In a given meteorite, the observed production rate of a cosmogenic...relative to the preatmospherio size and shape of the meteorite. The production rate of all species of mass no...bombardments of thick iron targets, these authors plotted total isobaric yields from iron for each mass number...“8A1 (or 22Na) with s3Mn production rates in an iron may therefore be rather difllcult and seemingly |
 | NISHIIZUMI, K, FINK, D, KLEIN, J, MIDDLETON, R, MASARIK, J, REEDY, R, ARNOLD, J (1997) Depth profile of41Ca in an Apollo 15 drill core and the low-energy neutron flux in the Moon. Earth and Planetary Science Letters, 148 (3) 545-552 doi:10.1016/s0012-821x(97)00051-4 | Journal (article/letter/editorial) |
| the determination of absolute depth scales in meteorite studies is much more complex and uncertain than... The measured ” Ca concentrations in small iron meteorite falls [36] and in the metal I5 deep drill...correspond to a contribution of N 1.4 dpm/kg due to iron in the Apollo 15 core (12.0% Fe). The spallogenic...other neutron-capture reactions, such as for meteorite shielding and size studies, planetary elemental...Yokoyama, Cosmogenic radionuclides in the Allende meteorite (abstract). Meteoritics IO (1975) 449. [ 131 D |
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| Chow, Tsaihwa J. Lead isotopes of the Red Sea region: Earth and Planetary Sc. Letters, v. 4, no. 3,...associated galenas from the Coromandel-Te Aroha region, New Zealand: Geochem. Jour., v. 3, no. 1, p. 1-14...Ilimaussaq a nd Igaliko intrusions in the Gardar province of southern Greenland [with Danish abs. l : Dansk...uranium ores from the Vilcambaba region (in German), Convencion Province: Peru. z. Deut. Geol. Ges. 1966...1969. Millman, P. M. Meteorite Research: Book. Procs. Unesco Symp . on Meteorite Research, Vienna, 7-13 |
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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...117Rb·1l7Sr study in a number of meteorite classes,ranging from chondrites to iron meteorites. H, E and LL chondrites |
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| Nininger Ask A Question About Meteorites Arizona's Meteorite Crater Out Of The Sky The Nininger Collection...cannot identify the parent body from which any meteorite was broken off. Presumably, meteorites come from...HERBERT A N D PAGE FALES 43 5. A R I Z O N A METEORITE CRATER 66 6. T W O VIEWS OF H A V I L A N D CRATER...BLUNT-NOSED METEORITE, ESTHERVILLE, IOWA 117 11. POLISHED SECTION OF A STONY-IRON METEORITE 150 12. DR...151 13. T W O VIEWS OF GOOSE LAKE, CALIFORNIA, METEORITE 176 14. N I N I N G E R R U N A B O U T , 1925-26 |
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| Dept. Mines and Nat. Resources Mines Br. Pub. - Province of Manitoba Department of Mines and Natural Resources...Mass. Meteorological Monographs. Center for Meteorite American Meteorological Society. Mexico Univ...Agriculture and Resources Mineral Resources Rept. Province of Newfoun~land and Labrador Department of Mines...Pullman, Wash. Nova Scotia Dept. Mines Mem. - Province of Nova Scotia Department of Mines Memoir. Halifax...biological and physical sciences of the Pacifjc region. University of Hawaii Press. Honolulu, Hawaii. |
