Element abundances determined by instrumental neutron activation analysis technique in individual chondrules separated from certain chondritic meteorite

Schmitt, R. A.

English

NASA Technical Reports Server

. 
GeNERALATDMlC 
DIVISION OF 
= = M E W  BVNfiMICS 
JOHN JAY HOPKINS LABORATORY FOR PURE AND APPLIED SCIENCE 
P.O. BOX 608, SAN DIEGO. CALIFORNIA 92112 
GA- 6642 
RESEARCH ON ELEMENTAL ABUNDANCES 
IN METEORITIC AND TERRESTRIAL MATTER 
SUMMARY PROGRESS REPORT 
SEPTEMBER 1, 1964, THROUGH AUGUST 31, 1965 
Contract NASw - 843 
National Aeronautics and Space Administration 
Work done by: 
R. A. Schmitt 
R. H. Smith 
Report  writ ten by: 
R. A. Schmitt 
August 31, 1965 
https://ntrs.nasa.gov/search.jsp?R=19660019542 2020-03-16T19:29:23+00:00Z
PREVIOUS REPORTS IN THIS SERIES 
GA-4782-September, October, November, 1963 
GA-4997--DecemberY 1963; January,  February,  1964 
GA-53O3-MarchY April, May, 1964 
GA-5596September  1, 1963, through August 31, 1964 
GA-590*September, October, November, 1964 
GA-61 84-DecemberY 1964; January,  February,  1965 
GA-6414-March, April,  May, 1965 
This summary progress  report  on r e sea rch  on elemental  abundances 
covers  the work performed under NASA Contract NASw-843 during the 
period f rom September 1, 1964, through August 31, 1965. 
During the last quar te r  of the reporting period--from June 1, 1965, 
through August 31, 1965-abundances of seven elements,  Na-Cu (Na, Sc, 
Cr ,  Mn, Fe, Co, and Cu), were determined by the technique of INAA 
( instrumental  neutron activation analysis)  in  25 individual chondrules 
separa ted  f r o m  the Type IIIA carbonaceous chondrite Ornans (Table 1); 
40 chondrules f r o m  the L-group chondrite Saratov (Table 2); 20 chondrules 
f rom the H-group chondrite Richardton (Table 3); and 20 chondrules f rom 
the H-group chondrite Miller (Table 4). 
Throughout the contract  year,  emphasis has been directed toward 
abundance determinations of the elements Na- Cu in 273 individual chondrules 
separa ted  f rom 12 chondritic meteorites,  and in par t icular  toward INAA of 
chondrules f rom carbonaceous chondrites. 
abundances in  chondrules to abundances in  the respect ive carbonaceous 
Types IIIA and IIIB chondrites have been plotted in  Figs.  1 and 2. (These 
figures may be compared with Figs. 1 and 2 of GA-5900, * which show the 
corresponding ra t ios  of chondrules and ma t r i ces  of Type I1 carbonaceous 
chondrites. ) In Figs.  3 through 7, correlat ions of Fe-Co and Co-Cu have 
been plotted for Type IIJA and IIIB carbonaceous and other chondrites. 
Collation and interpretation of the presently determined abundances with 
previously established values for other chondrules wi l l  be reserved  for  a 
fu ture  paper on chondrule abundances. 
The ra t ios  of the average 
Abundances of the seven elements Na-Cu could easi ly  be determined 
in these "batt1eship-typeT1 experiments, because convenient radionuclides 
(2. 56-hr to 5. 3-yr half-lives) of these elements a r e  generated in meteori t ic  
stony ma t t e r  by thermal-neutron activation and can be subsequently measured  
by gamma- ray  scintillation spectrometry.  
Since chondritic abundances have been generally normalized to Si, 
abundances of the lithophilic elements Na, Sc, Cr ,  and Mn in chondrules 
wi l l  be normalized to Si. In a collaborative program with W. D. Ehmann 
of the University of Kentucky, we have used the General Atomic Cockroft- 
Walton 14-Mev neutron generator to measu re  the Si content in  143 individual 
chondrules f rom 8 chondritic meteorites for which the abundances of the 
elements Na- Cu have been measured. 
continuing. 
This collaborative program is 
* 
The quarter ly  progress  report  for the period ending November 30, 
19 64. 
1 
2 
An attempt (descr ibed in GA-5900) was init iated to  determine the Ni 
content, via IPAA (instrumental  photonuclear activation ana lys i s )  of 
Ni58(y, n)37-hr Ni57, of all the chondritic meteor i tes  having known F e  and 
Co abundances (ascer ta ined via INAA). In addition, Mg was measu red  
via IPAA of Mg25(y, p) l5-hr  Na24 in some 40 chondritic meteori tes .  
second attempt (descr ibed in GA-6184") to measu re  selectively Ni via IPAA, 
a tr iple coincidence circui t  ( C C )  was used. This c i rcui t  consisted basically 
of two single-channel analyzers  (SCA) which, upon coincidence of the 
0. 51-Mev annihilation y ' s  of 37-hr Ni57, opened the RCL multichannel 
analyzer for detection, via a 3 in. X 3 in. N a I  crystal ,  of the 1. 37-Mev 
y of Ni5?. 
obtained by other workers - -were  attr ibuted to the interference of the 
1. 37-Mev y of 15-hr Na24, whose level of activity far exceeded that of 
Ni57.  A "slow" CC, > 2  psec T (resolving t ime) ,  had been used for the 
ear ly  Ni coincidence work. 
In a 
The observed high N i  values--higher by some 25% than those 
During the las t  quar te r  of the reporting period, a "fast" double and 
t r ip le  CC designed by K. Zimmerman of this Laboratory,  with a variable 
T f rom 0. 03 to 1 .  0 psec, was used to  measu re  routinely the abundance of 
Cu in chondrules. Fo r  measurement  of the doubly coincident 0. 51-Mev 
annihilation y ' s  of 12. 8 -h r  C U ~ ~ ,  an optimum T of 0. 3 psec was found, and 
this T value corresponds approximately to the light decay life of the NaI 
scintillation crystals.  
on an oscilloscope, w a s  checked by counting the random coincidence ra te  
of the 0. 662-Mev y ' s  (0.  61- to 0. 71-Mev windows for  the SCA) of 
Variable delay lines built in the CC allow precise  matching o r  overlapping 
of the T widths for each circui t .  Fo r  obvious reasons ,  this c i rcui t  will be 
used for the IPAA of Ni and other radionuclides having coincident y ' s .  
The width of T,  se t  by observation of the pulse width 
The abundance determinations resulting f rom r e s e a r c h  performed 
under this contract and other all ied r e sea rches  by the principal investigator 
and his collaborators during the current  contract  year  have been published 
in various technical journals ,  a r e  in press ,  have been submitted for 
publication, o r  have been presented a t  technical meetings.  
papers and presentations is given below. 
.I. *r 
The quarterly progress  report  fo r  the period ending 
1965. 
A list of these 
February  28, 
c 
3 . 
PAPERS AND PRESENTATIONS 
1. Schmitt, R. A., E. Bingham, a n d A .  A. Chodos, "Zirconium 
Abundances in  Meteorites and Implications t o  Nucleosynthesis, 
Geochim. et Cosmochim. Ac ta  28, 1961-1979 (1964). -
2 .  C h ~ y ,  S. C.,  2nd R. A. S c h d t t ,  "Cam-m-a-Ray Spectra Analyzed by 
Computer P rogram using the Peak  Area  Method, I '  Nature 205, -
758-760 (1 965). 
3. Schmitt, R. A . ,  R. H. Smith, and G. G. Goles, ''Abundances of Na, 
Sc, Cr ,  Mn, Fe,  Co, and Cu in  218 Individual Meteoritic Chondrules 
via Activation Analysis (I), J. Geophys. Res. 70, 2419-2444 (1965). 
Fourteen Rare-Ear th  Elements, Scandium, and Y t t r i u m  in the Solar  
System, in  R a r e  Ea r th  Research, II (K. Vorres ,  ed. ),Gordon and 
Breach, New York, 1964, pp. 583-621. 
-
4. Schmitt, R. A. ,  R. H. Smith, and L. Haskin, "Abundances of the 
5. Schmitt, R. A. ,  R. H. Smith, a n d G .  G. Goles,  "Abundances of T r a c e  
Elements  in  Meteoritic Chondrules and Separated Minerals,  
presented at the meeting of the Meteorit ical  Society in Tempe, 
Arizona, October 30-31, 1964. 
a ta lk  
---c 
6. Schmitt, R. A. ,  "Instrumental Activation Analysis of Meteorites, ' I  an  
invited talk presented a t  the Advanced Seminar on Activation Analysis, 
San Diego, Apri l  26-28, 1965. 
7. Glendenin, L. E . ,  and R. A. Schmitt, !'Neutron-Capture Cross  Section 
8. Van Lint, V. A. J . ,  M. E. Wyatt, R. A. Schmitt, and C. S. Suffredini, 
of 35-hr Rhlo5, Nucl .  Sci. Eng. - 20, 298-301 (1964). 
"Range of Photoparticle Recoils, Part 11, submitted to the Physical  
Review, 1964. 
4 
s c  Cr  
Chondrule- (PPm) ( P P m )  
a 
1 15. 0 ~ 1 .  9 4890~100  
2 16. 751. 5 46405150 
3 8. 5*1. 7 3240660 
4 5. 9*l.  7 2800t160 
5 10. 251. 5 48306150 
6 7. 9&1. 3 1860140 
7 i o .  6*1. 3 4090*120 
8 8. 911. 3 4360~120  
9 2. 9*1. 3 3290*60 
10 6. 411. 3 3550170 
11 10. O * l .  0 54001150 
12 9. 9*1. 2 3360*60 
13 25. 2*0. 8 48401120 
14 12. 211. 4 3710*80 
15 7. 960. 7 47001120 
Average 10. 5*3. 6 39705800 
16 7. 9 ~ 1 .  0 5540*100 
17 12. 511. 0 4740*90 
18 13. 4*0. 6 54005100 
19 9. 460. 7 2190140 
20 9. 410. 8 3850580 
21 2. 461. 4 3740680 
22 22. 2*0. 9 3270*60 
23 11. 2*0. 8 3950*80 
24 8. 6hO. 7 3 9 7 0 ~ 8 0  
25 6. 3kO. 6 4 2 5 0 ~ 8 0  
Average 10. 363. 6 46901920 
Grand Average 10. 563. 6 4020*760 
Chondrite 8. 6*0. 3 3510670 
a -All chondrules were  magnetic. 
Table 1 
F e  c o  
(7.0) ( PPm) 
3. 4 ~ 0 .  7 0 
4. 511. 8 320150 
0 3 9 0 ~ 7 0  
13. 710. 9 350+60 
9. 3-11. 8 400*50 
3. 3+1. 9 200*50 
4. 111. 6 360*40 
6. 951. 5 480140 
8. 212. 1 460*50 
7. 861. 9 570640 
7. 051. 4 160530 
5. O i l .  7 380*40 
6. 51.1. 3 500*30 
15. 461. 5 780140 
7. 9*1. 0 210*20 
6.9*2. 8 3705130 
12. 711. 8 770*40 
2. 5*1. 0 190120 
17.211. 0 690*20 
2. 110. 8 270520 
b 13.5*0. 8 820*20 
21. 2*1. 9 2190*40(out)- 
6. 310. 7 360120 
16. 7*0. 8 700620 
10.8hO. 8 650120 
12. 5*0. 9 760620 
11.615. 0 5 8 0 ~ 2 0 0  
8. 7*4. 4 450*190 
27. 0*1.2 670110 
See Table 6 of GA-6414 
ABUNDANCES O F  Sc, Cr ,  Fey AND Co IN ORNANS CHONDRULES 
(TYPE IIIA CHONDRITE) DETERMINED VIA INAA 
5 
Table 2 
s c  
(PPm) 
16. 0-3. 2 
10. 01-2.0 
R Z t O  5 
8. 3,o. 5 
6. 6* 0. 5 
6. 99 0. 5 
8. 7*0. 4 
9. 2io. 5 
7. OtO. 4 
9. 3*0. 5 
ABUNDANCES O F  Na, Sc. Cr. Mn. Fe.  Co. AND Cu IN SARATOV CHONDRULES (L-CROUP CHONDRITE) DETERMINED VIA INAA 
Cr 
(PPm) 
3 5 8 0 ~ 1 0 a  
4550r90 
3 32nt 70 
4230480 
3400270 
3 7 3 0 ~ 7 0  
3250i60 
43001 80 
3080i60 
3500a70 
Chondrule 
1 
2 
3 
4 
5 
17. O k Z  
20 .611 .0  
11.0+2 
8. 7 . 0 . 6  
11.013.7 
9. 750. 5 
8. 7 t0 .  3 
Y. 3 t 0 . 6  
7. 7 t 0 . 6  
7. 3+0. 3 
11.710.4 
13. 4r 0. 5 
IO. 3iO. 4 
10. 8+0. 4 
8. 40. 4 
Avg. 11 .  O i Z .  5 
6 
7 
8 
9 
10 
A 
Average 
11 
12 
1 3  
14  
15  
16 
17 
18 
19 
2 0  
21 
22 
2 3  
2 4  
25  
6. J*O. 4 
7 Q + 0  5 
8. 3 t0 .  4 
8. 9 t 0 .  3 
7. 7*6. 3 
5. 64 0. 3 
10. 110.3 
8. 9 t 0 . 5  
7. 64 0. 3 
8 3 t 0 . 3  
7. 9tO. 5 
6. 110.4 
6. 41 0.  3 
7. 5'0. 4 
6. 2.0.2 
Avg. 7. 740.9 
26  
- .  7 7  
28  
29 
30 
31 
32 
33 
34 
35 
36 
37 
38 
39 
40 
Avg. 
Average 
Grand Average 
Mass  
(mg)  
0. 10 
2. 00 
2 .  09 
2 .  13  
2. 61 
6. 92 
6. 97 
7. 14  
8. 70 
16. 02 
- 
- 
0. 15' 
0 . 2 2 '  
0.28. 
0. 421 
0. 44( 
0.61; 
0. 911 
0. 931 
0. 99( 
1 . 1 8  
1. 31! 
1.  48 
1 .57  
I .  84 
1 .  98 
2. 31 
z. 75 
2 .  80 
3. 09 
3. 16 
3. 33 
3. 49 
3. 51 
3. 83 
5. 04 
5. 47 
6. 39 
6. 82 
8. 90 
13.64 
- 
- 
- 
Na 
( PPLn ) 
1 1 .  600+500 
9, 8 6 0 ~ 2 0 0  
?. 760+ I50  
8. 330t160 
5, 270t  IO0 
6.620+120 
8, 920*170 
6. 81 01130 
6, 140+ I 2 0  
8. 6 0 0 i l 6 0  
7, 99051470 
5. OOOt 300 
31,  900*600(out)  
8, 4303320 
10, 700,300 
8. 5 0 0 ~ 3 2 0  
9. 2101270 
9. 4501270 
6, 630. I80 
7. 9601 220 
6, I701180 
6. OOOtl 80 
9 ,020+200  
8. 730t160 
9. 750iL00 
9, 3701-200 
6, 330i-120 
8, 580*160 
8, 58011 70 
5. 320*100 
5, 150ilOO 
I O ,  300t200 
2 . 5 7 0 ~ 8 0  
6, 400t  I20 
7. 850al50 
4. RZ0*90  
5. 77OalLU 
8. Z O O t  160 
5, 880* 120 
8, 050t160 
Avg. 8. 210*1330 
8, 020+ 160 
Avg. 8. 790i2210 
7. 470*1610 
7 ,  62011 570 
9. O*l. 7 3690t41 C 
I 
2 6 6 0 ~ 5 0  
3840: 12C 
4020t80 
4 480 + 9 0 
4330480 
3740-80 
:830180 
$8702 UO 
41 3 0 A  uo 
40601 80 
292Ot60 
2790160 
3680+ 70 
3120+60 
41 50+80 
'vg. 3710345C 
38IOt80 
3 2 7 0 ~ 6 0  
4580t 9 0 
48801 I OC 
3 2 0016 0 
2640+60 
37201 80 
4790590 
51 Z O t  50 
J470r 70 
4630.90 
4240.80 
3860-80 
4320tUO 
40804 80 
4 0 4 0 ~ 5 6 0  
9. 4 t3 .  I 3880151U 
9. 3+2. 0 3830t490 
Mn 
( P P d  
2740590 
3060260 
3180t60 
30501 60 
2760b60 
2760160 
33 30t  60 
2470t50 
2660150 
~ 6 8 0 + 5 n  
34504 I O C  
21 40780 
3540,F.O 
2980. 80 
3560470 
29 3 0 t 6 0  
23401 40 
3200*60  
34601 70 
358Oj 70 
2830*60 
2990160 
282Oi60 
32 80+ 60 
32 9 0 t  60 
44304 80 
3320.60 
3670*70 
3650*70 
2910460 
41 401 80 
2990160 
29 704 60 
3920+ 80 
3 7 2 0 1 6 0  
36904 70 
37501 70 
3520+?0 
3370t60 
3380.60 
3 3 1 0 ~ 3 6 0  
$ZOO* 380 
F e  
(70) 
3. 9t3.  6 
12. OkO. 5 
9. oto.  5 
14. 5.0. 8 
14.710.5 
Avg. 10. 8 t J .  5 
12. 8iO. 5 
13. 5aO. 4 
12. 310. 6 
15. O*O. 6 
15. ?io. 5 
Avg. I 3. 9i 1 .  2 
12. 412. 4 
5.4.1.0 
4. 44 1. I 
3. 4+0. 9 
9. 911. 0 
5 . 4 i l .  4 
7. 7+0. 6 
7. 510. 5 
7. 0.0. 7 
5. 830. 6 
IO. 2*0. 4 
13. 3t0. 5 
9. 5+0. 4 
6. 8tO. 5 
9. 7*0. 4 
14.110.4 
Avg. 8. 012. 5 
10. 9*0. 5 
8. 550. 5 
I O .  72 0. 4 
6. 8tO. 2 
14. 41 0. 3 
10 .810 .4  
I O .  7.0. 4 
11 .8 '0 .4  
7. 850. 3 
I 2  o t o . 4  
9. 53 0. 4 
7. 92 0. 4 
1 2 . 9 t 0 . 4  
10. 44 0. 4 
14. 2 I O .  3 
Avg. lO.6t1.7 
9. 312. 5 
10. lL2. 8 
co 
( PPm 1 
ZOO* 1 00 
150+10 
69 t10  
2.20.20 
82*8  
vg. 140560 
160t10 
110+10 
23021 0 
240a10 
3 5 0 d O  
vg. ZLOi60 
180i70 
0 
l 6 t 3 2  
0 
6120 
0 
12115 
7r10 
32 t15  
2 t 1 4  
1 8 3  8 
19+10 
0 
1 3 i 8  
558 
34+7 
vg. ! I t 9  
-
34*8 
39*8 
42+6 
ZOt4 
2 11-4 
43+6 
6& 4 
1317 
0 
4615 
39*4 
1216 
37*4 
36i5 
47 t3  - 
.vg. 29114 
Z O i l 5  
6 0 t 6 0  
c u a  
( P P d  
18a36 
60*6 
7426 
8216(D$ 
71t8iD) 
89i51Dl 
87a 14  
44 t14  
97r12 
67a9 
79a26 
0.21 
91 t27  
6 t 1 6  
2 7 t  15 
12 t12  
4 3 t  I 3  
3 6 t  10 
36+10 
3 3 t 9  
2 8 t 7  
71a12 
10-t l l  
37a13 
2oa11 
3 4 a l l  
31+9 
4 2 t  10 
44i11 
2 3 i 9  
23+7 
3Zt8  
22*9 
11+5 
26+7 
5 6 t 8  
5 9 t 7  
37+6 
4 6 t 7  
3 2 t 5  
46a9 
34514 
45+23 
pCu was  counted via coincidence counts of the 0. 51-Mev annihilatirw y's of 12. 8-hr C U ~ ~ ,  using two 2 in. Y 2 in. NaI crys ta l s  and two 
h(D)  stands for the average value of two abundance determinations separated by a decay of four half- l ives .  
SCA with 0.46-  to 0. 56-Mev windows. The CC was used with a T of 0. 3 p s e c . i .  e . ,  2 T = 0. 6 psec .  
6 
. 
c 
u E  
m o  
0 - 
c 
U ' 
0 
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0 0 0 0 0 0 0 0 0 0  
O N N c O N O O N 9 Q )  
I n m m N m Q P N W N  
$1 $1 $I $1 $1 $1 -H -+I 41 H 
0 0 0 0 0 0 0 0 0 0  
o m v r - m o o m m a  
9 4 0 0 p 0 0 9 - + . - + N  
- 
0 
~ o o o o o o o o o  m
0 9 9 9 D 9 9 9 9 9 9  - 
+ I  i l  H -11 -H 14 +I -11 41 H t i  
3 0 0 0 0 0 0 0 0 0  0 
n Q m O - m 9 m r - 9  d 
o m r - o m r - c O o o N  m 
\ J N N m N " m m m  hi 
3 o c  
3 0 0 0 0 0 0 0 0 0  C- 
1' +I 1' tl i i  11 A I  II 11 $1 t 
~ 0 0 0 0 0 0 0 0 0  c 
V m N * m a c o * N O  u 
r ) N * N r - m . - + 0 0 9 0  \L 
r r e N 9 m N m N m m  cr 
- C O l n C O 0 0 L n Q 9 ~ -  C- 
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3 
0 
> o o o o o o o o o y  
S N N I n o O N O O O O  
V m m N N m m N N -  
I 1  tI  i l  -11 li $I $1 11 +I -11 
3 0 0 0 0 0 0 0 0 0  
q c o r - o e ~ m ~ o m  
3 m m 9 0 N 9 9 m a  - . . -  6 r-- 00- a- r-- 00- r-- In In N 
< 
v) 
e, 
s 
..-I 
d 
I W 4
Id 
A 
0 
3 
U 
W 
0 
h 
Id u 
e, a 
Id 
x e 
a 
P) 
rd 
Id 
0. 
a, 
c1 
10 
ul 
C 
0 
Id 
C 
..-I 4-3 
'2 
e, 
a, a 
U 
. 
. 
Table 4 
ABUNDANCES O F  Na, Mn, AND Cu IN MILLER CHONDRULES 
(H-GROUP CHONDRITE) DETERMINED VIA INAA 
Chondrule 
1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
Average 
11 
12 
13 
14 
15 
16 
17 
18 
19 
20 
Average 
Grand Average 
Mass 
( m g )  
0. 189 
0.537 
0. 712 
0. 872 
0. 93  
1. 025 
1 .29  
1 .59  
1 .77  
1. 86 
2. 30 
2. 52 
2. 77 
3. 24  
4. 03 
5. 09 
5. 48 
6. 46 
6. 50 
27. 1 
Na 
( P P d  
7, 740*150 
h 16, 000*300( out) 
6,900*140 
9, 320*180 
9,140k180 
8, OOO* 160 
8, 720*160 
6,900*140 
24, 300*500(out) 
9,400*180 
8,270*880 
7, 300*140 
8,570*160 
8,250*160 
8, 010*160 
7,920*160 
8,960*160 
8,150*100 
4, 320k80 
5,680*100 
6,460*120 
7,360*1140 
7,770*1080 
2740*50 
2570f50 
2770f50 
2 62 Of 5 0 
192 Of 50 
2740*50 
2620f50 
231 W50 
2 50 Of 50 
257 O* 50 
2650*50 
266 O* 50 
2830i50 
2620*50 
271 0*50 
2790zk50 
2950i60 
2330*60 
2400i50 
2560*50 
66f 16 
26*13 
55*9 
49*9 
52* 16 
89*10 
17*7 
0*6 
39*7 
38*5 
43*19 
65*6 
29*6 
26*5 
66i5  
52*5 
17*4 
4*4 
46* 3 
28*4 
2 6*2 
36*17 
40* 1 9 -
Cu was counted via  coincidence counts of the 0. 51-Mev 2% 
annihilation y ' s  of 12. 8-hr Cub4, using two 2 in. x 2 in. N a I  
c rys ta l s  and two SCA with 0.46- to  0.56-Mev windows. 
CC was used with a T of 0. 3 psec,  i. e . ,  2 T = 0.6 psec.  
The new 
-The b (out) values a r e  not included i n  the averages.  
8 
I 
I Y r. 
I - 
I 
Y - 
I 
I - " 
. 
v I 
4 
I 
I 
I-* 
II 
Y 4 
I 
U 
II 
0 
W 
a 
- -.- 
I --t- u E 0 z a z, 
U 
II 
a 
3 
U 
II 
a 
u 
II 
a 
U 
E 
a 
c- 
U 
II 
a 
(31 
A- 
N 
I- 
I 
V 
v) 
W 
k- 
- 
- 
- 
5 a 
U 
z 
K 3
a 
z 
I 
V 
- 
a 
a, u 
v, z 
z 
ol 
0 
a 
a 
0 
z 
0 
0 
oc 
9 
0 z 
K 
U 
> 
a 
a 
a 
- 
a - 
0 
Y 
0 r 
, w  
V 
z 
A 
a 
a 
m 
a 
Y 
X 
A 
W 
lL 
- 
9 
W 
4 r 
i - - 
W 
r a 
I- 
U 
r a 
W 
4 
I: 
W O 3  
L W W  
0 o a  
U 
4 x 
I I I I I I 1 I 
c A " 4 
7 - 
.4 t " 
u 
-  
I 
- 
I I I 
N 
I- 
I 
V 
v) 
W 
I- 
- 
- 
- 
3 
u z 
a 
rr 
3 
a 
z 
I 
V 
- 
a 
v) 
W 
I- 
ez 
0 z 
0 
I 
U 
- 
m 
w 
W 
> 
I- 
n 
v) 
z 
z 
cf 
0 
a 
a 
0 z 
0 
0 
CY 
Y 
a 
0 z 
ez 
W 
> 
a 
a - 
a - 
0 
Y 
0 
IW 
V 
z 
_I 
a 
a m a 
Y 
X 
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W 
LL 
- 
In 
W 
I- 
CL 
z 
0 
I 
V 
- 
n 
a 
H 
W 
t 
I- 
a 
C 
" 
V 
c 
cd a 
.PI 
10 
100 
90 
8 0  
7 0  
- 6 0  
,\" 
IL" 50 
U 
4 0  
30 
2 0  
IO 
0 
A Fe - C o  
- 0 c u - c o  
- 
0 
0 
- 
- 
- 
( C O  - C U I  
WEAK 
0 
0 
A 
0 
RENAZZO 
CHONDRULES ( I I ) ,C,  M 
I I I I I I 
200 
180 
I60  
I40 
120 - 
5 a 
100 3 
a 
Y 
u 
8 0  
60 
40 
2 0  
0 
0 500 1000 1500 2000 2500 3000 3500 
Co (PPM) 
Fig. 3- -Correlations of Fe- Co and Cu- Co in  21 Renazzo (Type 11) 
carbonaceous magnetic chondrules 
11 
20 t 
A Fe - Co 
0 c u - c o  * CHONDRULES ( I I ) , C  
f A  (23.8) 
M l G H E l  
0 
A 
0 
(810) 
0 
__L 
0 100 200 300 400 500 600 700 
C o  (PPM1 
200 
180 
I60 
I40 
I 20 
CI z 
n a 100 u 
3 
V 
80 
60 
40 
20 
0 
Fig. 4--Correlations of Fe-Co and Cu-Co in  30 Mighei (Type 11) 
carbonaceous chondrules 
12 
20 
1 A F e - C o  
l 8  1 0 c u - c o  
A A 
/ 0 
I 
14 
12 
- IO 
2) 
8 
6 
4 
2 
0 
- 
- 
K A B A  
CHONDRULES ( I I I A ) ,  
A 
0 
M 
/ I I I I I I 
00 
0 0  
60 
4 0  
- 2 0  
5 a 
00 - Q 
'J 
V 
$0  
50 
I O  
' 0  
I 
0 100 200 300 400 500 600 700 
Co (PPM) 
Fig. 5--Correlations of Fe-Co and Cu-Co in 20 Kaba (Type IIIA) 
chondrules 
13 
20 
18 
16 
14 
12 
h 
Y o\" I O  
z 
8 
6 
4 
2 
0 
Fe - Co 
cu- c o  
A 
b% 2 1.2 
A A- 
A 
0 
-/ 2190 
:o - c u  
A 
A 
n 
W 
O 
ORNANS 
CHONDRULES ( I U A ) ,  M 
I A I I I I 
u 
400 
360 
320 
280 
240 
CI 
z 
Q 
n 200 - 
3 
0 
160 
i 20 
80 
4 0  
0 
0 200 400 600 800 1000 1200 1400 
Co (PPM) 
Fig. 6--Correlations of Fe-Co and Cu-Co in 25 Ornans (Type IIIA) 
chondrules 
14 
20 
18 
16 
14 
12 
A 
s 
u 10 
8 
6 
4 
2 
0 
0 
0 / 
f” - CO (WEAK)  
A Fe - C o  
0 c u  - c o  
0 
A 
0 
0 “A 
- / 
0 
0 
- 0  
A 
0 
0 
0 
0 
O L I V E N Z A  
CHONDRULES (SB) 
I I 0 ,  I I I 
I O 0  
9 0  
80 
70 
6 0  - 
5 a a 50 - 
3 
0 
40 
30 
2 0  
10 
0 
0 50 100 150 200 250 300 350 
Co (PPM) 
F i g .  7--Correlat ions of Fe-Co and Cu-Co in 25  Olivenza 
(Soko- Banjit ic) chondrules 


Research on elemental abundances in meteoritic and terrestrial matter Summary progress report, 1 Sep. 1964 - 31 Aug. 1965

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