radae 2 ee LW a a a Pe ek te fame TecheBS ga eee ee ATs PHYSICS (GENERAL) Astrophysics and Cosmology Retort ana fo abséracs fie NECLEAK ANI COSMOCHEMISTRY, 5034 (EHR RR Fh (Arkans is Univ, Fayetteville, Dept, Annual Progres Report, Contract VIP(40-1)-3235, 25, of Chemisteud, Ak dab LaTL, Ike, NTIS, React suinbviries of resc.treh on origin and age of the clements, & at Pyet Ryine AO Lig Sia et in lee A ee oh eee Ce Eerte, Tee me. naele ay spe Thaseope y Fission: tadkes, od inatrumentation are prescuterdd. Visto papers published oi ia press is appended, mobos Cosmic Ray Exposure Ages Reter aiso ta abstract 108, 5035 ALASS SPECTROSCOPIC RESEARCHES IN NUCLEAR PHYSICS AND USOTOPE COSMOLOGY, Hintenberger, H. (Max- Planek-Institut tuer Chemie, Mainz). pp 3-25 of Recent Developments in Miss Spectroscopy. /Opatu, Soreichi (ed... Baltimore; University Park Press (1970), From Revent developments in muss spectroscopy conference; Kyoto, Japan (4 Sep 1969). Mass-speetroscopic rescurches that should improve the knowledge on the existence and propertics of nuclides, as well as on nuclear reactions, are reviewed. Mass -spectroscopie investigations arc summarized that should yield new information on the composition and histery of turrostrial matter and the evolution of nitty inthe solar Svsteno and in ithe Universe. (W.D.M) 5036 XENON PRORLEMS IN METEORITES: A REVIEW, Reynolds, J.T. (liv. of Coditernin, Berkeley). pp 594-607 of Reeent Developments in Macs spectroscopy, /Ogata, Kereichi fed}, BalHimore; University Pairk Press (1970), From Recent developments in muss spectroscopy conference; Kyoto, Japan ($ Sep L969). Sesoral distincek scnon comrencnts that have been identified in meteorites are discussed, startin, with components that are understuod and proceeding to components about which speculation only is possible. Attention i. focused upon the more-recent results, und ho attempt is mide to comprehensively discuss the evtensive Literature da cthe tiadd, Wl. AL) 5037 INDE CED NONVOTLATILE SUCLIDES IN METEORITES. Shima, Masako (Pokvo Uni. pp 608-20 of Recent Develop- ments in Mass Spectrose ny, Oeata, Rererchi (ed.j. Baltimore; Vaiversily Pork Pross (Lov0). From Recent developments in mass spectroscopy conference; Kyoto, Japan (as bep LoSgy, Che concontraticn ot cosmiceras -produced stable nuclides of Cr, Vy li, Cu, ant Bound eo bene -livec nuclides, MK and 5?Mn, seere Getorhithed Wi dred ae tears, the tonmie-ray-produced “Rin the teetallic pause ol chotndrites wits also detected aller it wits purthied by a braetionat dissolution quicthod. AL the abave elemeris wore »iiaidiing: Gels csxtracted from: iron meteorites Hy oawet cbenme ct metho. Lhe containmation level of K, Ca, ced Yi, and Yo aus ob inorder al sl ut, bua. and @.01 ppM re- speeuvely (The bia os oper trom ctry ot caeh element was performed ia aowelace Panvahon so did source mass spectromelor, WDD.) 5033 DISTRIB PION OO) “OME SPABLE AND LONGLIVE DNUCLADES PRODLCED GY COSMIC RAYS IN THE TRON METUORETR GRA OT. te omuri, Mis Shimnia, Masako; Honda, Mo. (Lohse Univ. pap baveor ot Meeent Developments wy Muss Spectra cops. Onrota, Korerela tech), Baltimore; Uni- versily fark Pre.s (1e7o) From Recent developmictts uy mass Kyota, Japan (> Sep bueoy pectrosecopy conferences Most of the stiddes on tents efhect af the cosmie-ray-produced nuclidus Wi iron ineteoriftes uiyc bec made with He, Ne, and Ar. Howeter, ihe dataon the distito: tion et the guelides with a mass nmlunBer near tat ob the wareet, suelo as fi, V, Cr, and Mn, are much mere helphif in estupit ag the proulmospheric size and croston rato oof oe michearthe a soiee. The results on the distribution of the caspiropenic nuelirtes of i, Ca, Ti, ¥, Cr, and Mn in the freantaineiore die are descyibcd. G4 DOM 5039 SPUPDY OF HiEDIC AM DOTOPIC ABUNDANCE IN THE SAMPTAch WITTE SSIS HELIUM CONTENT. Alimova, I, A.; Mamyrin, B. A.; Gartmanov, V.N.; Boltenkov, B. 5. (Ioffe Inst, of Physics and Tech., Leningrad). pp 652-3 of Recent Developments in Mass Spectroscopy. /Ogata, Koreichi (ed.}. Baltimore; University Park Press (1970). From Recent developments in mass spectroscopy conference; Kyoto, Japan (8 Sep 1969). A very brief description is given of helium isotope analysis of air, meteorites, cosmic dust, alurninum, and mineral samples. (WM.) 5049 MASS SPECTROGRAPHIC DETERMINATION OF TRACE ELEMENTS IN METEORITES. Hintenberger, H.; Berghof, Ww, (Max-Planck-Institut fuer Chemie, Mainz}. pp 657-65 of Recent Developments in Mass Spectroscopy. /Ogata, Koreichi (ed.). Baltimore; University Park Press (1970). From Recent developments in mass spectroscopy conference; Kyoto, Japan (8 Sep 1969). , The rare earth elements as well as the heavy elements Re, Os, Ir, Pt, Au, Tl, Pb, Bi, Th, and U were determined by spark source mass spectroscopy in the olivine—hypersthene chondrites Holbrook and Mocs and in the enstatite chondrite Abee. The rare earth elements were also measured in silicate inclus{fons of the iron meteorite El Taco. Compared to the rare earths in ordinary chondrites a strong depletion of europium was found in the El Taco inclusions. (auth) 5041 STABLE CARBON-ISOTOPE RATIOS IN METEORITIC ORGANIC MATTER. Flory, D. A. (Manned Spacecraft Center, Houston, Tex.). pp 692-9 of Recent Developments in Mass Spectroscopy. /Ogata, Koreichi (ed.). Baltimore; University Park Press (1970), From Recent developments in mass spectroscopy conference; Kyoto, Japan (8 Sep 1969), The measurement of stable carbon-1sotope ratios of genuinely indigenous carbon-containing matter can shed new light on the admixture theory versus the successive-metamorphism theory of carbonaceous chondrite evolution. Successive metamorphism would result in isotope fractionation by preferential vaporization as the total carbon content decreases by the volatilization of organic carbon and would tend to produce material with only slight ‘differences {about one percent) in isotopic composition for all earbon-containing phases. However, an admixture would retain any isotopic content variations in discrete phases and would show no correlation between isotopic composition and carbon content. For this report, carbon-isotope composition data were obtained for the total carbon present, the inorganic carbon fraction, the carbonate carbon fraction, and the insoluble organic carbon fraction. The extractable organic carbon fraction was not considered. Investigations conducted to determine the nature of the extractable organic carbon fraction concluded that the source is terrestrial contamination. The results of a recent studyof the stable carbon-isotepe composition of the soluble organic carbon in several carbonaceous chondrite meteorites carried out in the University of Houstun biophysical science laboratories are also consistent with the conclusion of a terrestrial contamination source. (auth) 5042 EXTINCT ®°], 44pu, AND SUPERHEAVY ELE NeaLo IN THE EARLY HISTORY OF THE SOLAR SYSTEM, York, Derek (Univ. of Toronto). Comments Earth Sci,, Geophys.; 2: No, 1, 14-21 (@un-Jui 1971), ‘ A brief review is given on the existence of the extinct isotopes "257 and @4py and their implications for an understanding of the early solar system. 30 references. (W.D.M.) Stars Refer atso to abstracts 5198, 5204, 5344, and 5482, 5043 LITHIUM ISOTOPE RATIO IN F AND G FIELD STARS. Cohen, Judith Gamora. Pasadenu, Calif.; California Inst. of Tech, (1971), 220p. University Microfilms Order No, 71+ 27,095. Thesis. Theoretica! profiles of the resonance line of Li ] were computed using an absorption coefficient (sum of each of the four components) and a model stellar atmosphere. These profiles were used to verify the lithium abundances derived by previous investigators with various approximations. A study of the feasibility of measuring the lithium isotope ratio with high-dispersion photographic spectra was made, with negative resuits. Profiles were obtained of 46708 A of Li I, 46717 A of Cal, and somctimes 46710.3 A of i s & Sa er Tae aaatitech eee S