Oslo Fjord

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1920
Oslo Fjord
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The Solar System is a debris heap of ISM matter

• How well mixed is the Solar batch?
• There are gross variations in 16O/ 18O
• But not in 17O/ 18O!! (R.N.Clayton. Science
  (1973)). Chemical-Physics
• Pure 22Ne is present in meteorites. Nuclear
• From dust grains from RGB/AGB stars preserved in
  meteorites (D. Black. GCA(1972)).

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TWO FUN CAIs from the Allende meteorite
Variable isotopic ratios in Solar System
material
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BULK OBJECTS
R. Andreasen M. Sharma ,Science V. 314, 2006
also see ApJ 2007
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Isotopic shifts due to the decay of short lived
nuclei.
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Backward time
Forward Time
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13 Myr
13 Myr
J. Chen G.J.W.(1981,1985)
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Y. Amelin, A. Krot, I. Hutcheon, A.
Ulyanov-Science v 297 (2002)
2.5 Myr.
The new Backward time scale world.
Is t04,567.1?
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G.Lugmair A. Shukolyukov Geochim. Et Cosmochim.
Acta V62 (1998)
BASALTS
CHONDRITES
53Mn
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NanoSIMS Data
Nanosims I. Hutcheon, A. Brearly E.
Ramon(UNPUBLISHED)
53Mn/55Mn (4.2 0.5)x10-6
53Mn
ALH84304 CALCIUM CARBONATE!! WATER
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S. Tachibana, G. Huss, N. Kita, G. Shimoda Y.
Morishita. ApJL 639 (2006)
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T.Kleine, C. Munker, K. Metzger H.
Palme- nature V418, 2002
A view of 182Hf at t0
GREAT!!! Now what is (182Hf/ 180Hf)0 ?
If 0 is from 26Al- Then this is 3My
later. (182Hf/ 180Hf)0 1.5x10-4
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182
Hf in an early formed planet.
G.Srinivasan, M. Whitehouse, I. Weber A.
Yamaguchi SCIENCE ,JULY 2007
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Xe correlated with large excess of fission
tracks, U,Th rich min. phases meteorites
Fission yield of Xe isotopes
(244Pu/238U)06x10-3
St. Severin (Phos.,Wasserburg et al)
Lab. measurement
(244Pu/238U)UP1.4x10-2
E.Alexander, R. Lewism, J. Reynolds M. Michel.
Science v. 172, 1971
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Terrestrial Zircons Ages t4.1-4.2 x109 yr Hi U
,no initial Pb. Zircons irradiated with
thermal n.
G.Turner et al Earth Planet Sciences in press
(2007)
(244Pu/238U)08x10-3
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129Xe
Xe from Cl, I rich crystal
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Data from meteorites
)
182Hf( )
(
129I
Both r Nuclei
In the early solar system
(129I/ 127I)1.0x10-4
(182Hf/180Hf)1.0x10-4
If 129I and 182Hf were made in the same r
events (182Hf/180Hf)5x10-6
Wasserburg, Busso Gallino (1996).
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Solar System r yields
L
H
L
NrN
-Ns
The bumps grinds of the universal r process
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The Actinides!!!
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REQUIRES tr-tESSgt50x106yr
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THIS REQUIRES - That Heavy r process (real r)
did not contribute To late additions to the
Solar system 182Hf is not from that Heavy r
contribution. From 53Mn there must be local
irrad. or SNII Type contribs. From
60Fe it means SNII or AGB comtribs. From 10Be
36Cl there ust be local irrad. NO SOLE SOURCE
WILL DO THE JOB!!
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An active cloud with several rapidly evolving
stars (no r).
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Mano Doble
A two handed, double edged sword.
The Meteoritic Data The Asronomical
Observational Data are critical to the
study of NUCLEAR ASTROPHYSICS. Theory is the
handle that we must grasp To enrage learning.
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