Geology Reference
In-Depth Information
Table 6.1.
ANSMET lunar meteorites.
Plot
symbol
Norm.
plag. (%)
Likely or possible
launch pairs
Stone name
Paired with
New
Mass (g)
Lithology
Find date
A
ALH A81005
1
31.4
71.5
FRegBrx
1982-01-18
E
EET 87521
EET 96008
1
30.7
38.4
BRegBrx
1987-12-20
Yam 793274/981031,
QUE 94281, NWA 4884
(YQEN)
e
EET 96008
EET 87521
52.97
38.4
BRegBrx
1996-12-14
G
GRA 06157
1
0.788
79.9
FRegBrx
2007-01-08
1
LAP 02205
other 5 LAPs
1
1226.3
28.1
MB
2002-12-18
NWA 4734, NWA 032/479
(NNL)
2
LAP 02224
other 5 LAPs
252.5
28.1
MB
2002-12-12
3
LAP 02226
other 5 LAPs
244.1
28.1
MB
2002-12-13
4
LAP 02436
other 5 LAPs
58.97
28.1
MB
2002-12-12
5
LAP 03632
other 5 LAPs
92.566
28.1
MB
2004-01-01
6
LAP 04841
other 5 LAPs
55.992
28.1
MB
2005-01-03
L
LAR 06638
1
5.293
82.9
FRegBrx
2007-01-03
m
MAC 88104
MAC 88105
1
61.2
79.5
FRegBrx
1989-01-13
Dhofar 1428
M
MAC 88105
MAC 88104
662.5
79.5
FRegBrx
1989-01-13
T
MET 01210
1
22.83
46.4
BRegBrx
2001-12-23
Yam 793274, Asuka
88175 MIL 05035
(YAMM)
B
MIL 05035
1
142.216
26.7
MB
2005-12-11
Yam 793274, Asuka
88175 MET 01210
(YAMM)
I
MIL 07006
1
1.368
75.6
FRegBrx
2007-12-31
Yam 791197,Dhofar
1436/1443
£
MIL 090034
MIL 090070 &
090075
1
195.565
86.0
FRegBrx
2009-12-18
¥
MIL 090036
1
244.830
76.1
FRegBrx
2009-12-22
$
MIL 090070
MIL 090034 &
090075
137.461
86.8
FRegBrx
2009-12-20
¢
MIL 090075
MIL 090034 &
090070
143.523
82.7
FRegBrx
2009-12-20
P
PCA 02007
1
22.372
72.8
FRegBrx
2003-01-05
Q
QUE 93069
QUE 94269
1
21.4
80.1
FRegBrx
1993-12-11
q
QUE 94269
QUE 93069
3.2
80.1
FRegBrx
1994-12-10
U
QUE 94281
1
23.4
44.9
BRegBrx
1994-12-12
Yam 793274/981031,
EET 87/96, NWA 4884
(YQEN)
Total
24
14
3733.4
Note:
New = first or only stone of a pair group; Norm. plag. = normative plagioclase abundance based on data of Table 6.2;
BRegBrx = basaltic regolith breccias; FRegBrx = feldspathic regolith breccias; MB = mare basalt.
Moon's lateral variability. Among the 14 ANSMET lunar
meteorites, 9 are feldspathic regolith (soil) breccias
from the lunar highlands, 2 are basalts from the maria,
and 3 are regolith breccias dominated by mare material
but containing some feldspathic material (Table 6.1).
Among the ANSMET lunar meteorites, concentrations
of incompatible elements vary by a factor of 10
(Figures 6.3 and 6.4).
In this chapter we review the characteristics of the
ANSMET lunar meteorites and compare them with
Apollo
samples and lunar meteorites from elsewhere.
6.2. EXPERIMENTAL METHODS
We present here new compositional data obtained by
INAA (instrumental neutron activation analysis) and
EPMA (electron probe microanalysis) of fused powders
for some ANSMET lunar meteorites. The analytical
procedures are described in detail in
Korotev et al.
[2009b].
Briefly, we analyzed multiple (2-16, typically 6-10) sub-
samples (typically 25-35 mg in mass) of each stone. Mass-
weighted mean concentration values and total mass
analyzed are presented in Table 6.2 and data for individual
