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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
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