\
A
AT THE
UNIVERSITY OF NEW MEXICO
ST1W OF S I L I C I C PLUTONIC ROCKSN
I THE ZUNI AND FLORIDA
MOUNTAIFfS TO EVALUATE THE POSSIBLE OCCURRENCE OF
GISSENINATED !!RANIUP? AND THORIUR DEPOSITS
U R A N I U M AND THORIUM ABUNDANCES AND WHOLE ROCK CHEMISTRY
OF THE FLORIDA MOUNTAINS, NEW MEXICO:
PRELIMINARY STUDY
NMEI REPORT NO, 77-1104C
DECEMBER 1978
This research was conducted with the support
of the New
XexicoEnergy and MineralsDepartment (EMD). and the New
KexicoEnergy I n s t i t u t e a t The University of New Mexico
( N M E I a t UNM) underContract
77-1104. However, any opini o n s ,f i n d i n g s ,c o n c l u s i o n s ,o r
recommendations expressed
within this report are those
of the authors and
do not
n e c e s s a r i l y r e f l e c t t h e views of the EMD o r of the NMEI
a t UNM.
NMEI Report No. 77-1104C
i
A STUDY OF SILICIC PLUTONIC ROCKS I N THE ZUNI AND FLORIDA
OCCURRENCE OF
MOUNTAINS TO EVALUTE THE POSSIBLE
DISSEMINATED URANIUM AND THORIUM DEPOSITS
Uranium andThoriumAbundances
a n d ' 6 h e Rock Chemistry
of the Florida Mountains, New Mexico:
Preliminary Study
Final Report
August. 15, 1977
- August
14, 1978
Principal Investigators
Douglas G. Brookins,Department
of Geology, U n i v e r s i t y of New Mexico
C h r i s t o p h e r E. Rautman, New MexicoBureau
L. LeRoy Corbitt, Department
of Minesand
Mineral Resources
of Geology, Eastern New Mexico U n i v e r s i t y
Authors
Douglas G. Brookins,Department
of Geology, U n i v e r s i t y of New Mexico
C h r i s t o p h e r E. Rautman, New MexicoBureau
L. LeRoy Corbitt, Department
of Mines and Mineral Resources
of Geology,'Eastern New Mexico U n i v e r s i t y
NMEI #77-1104C
December 1978
1
Uranium and Thorium Abundances and Whole Rock Chemistry
of the Florida
Mountains, New Mexico: Preliminary Study
Douglas G. Brookins, Department of Geology, University of New Mexico
Christopher E. Rautman, N.M. Bur. Mi.nes.Min. Res.
L. LeRoy Corbitt, Department of Geology, Eastern New Mexico University
abstract
The
uranium
and
thorium
abundances
in
the
Precambrian
granitic
and
of
the syenitic rocks (age unknown) of the Florida Mountains have
been
.
analyzed by delayed neutron activation analysis. The average uranium
content of90 surface and drill core samples is 3.12 ppm and thorium content
for 66 samples is 12.33; Th/U
= 3.97, well within the
normal range for
normal for granitic
granitic rocks (3.7 - 4.2). Although the Th/U ratio is
and syenitic rocks,
a negative correlation between uranium (and Th/U)
with A1203, K20, and (K 0 f Na20) is observed. This-maybe due to (a) der2
o r rocks
ivation.of the syenitic rocks from parent, low uranium. gabbroic
(b) uranium loss during weathering. For the latter, significant amounts
of
uranium
may
have
been
removed
and
possibly
not
transported
far
source area. The syenitic rocks do not possess high uranium contents
typical
of
other
areas.
from
th
L
Introduction
The
Florida
Mountains,
south-central
New
Mexico
are
of
interest
because
of the presence of syenitic rocks (Corbitt,
1971) and the assumed association
of uranium enrichment with uranium. This assumption prompted part of this
study, vi?..
to determine if the rocks
of the Florida Mountains were indeed
so, whether they represented
a possible, low grade
uranium rich and, if
uranium resource. If uranium poor, then uranium
loss may be postulated
which
may
would
be
The
indicate
that
uranium
exploration
in
the
surrounding
sediments
justified.
Florida
Mountains
are
very
complex
geologically;
syenites
originally
mapped as Mesozoic by Corbitt
(1971) have been indicated as much older
(i.e., from early Phanerozoic(?) to Precambrian; Brookins,1974). Whole
rock chemical studies and petrographic studies have also been carried out
to help assess the relationship between the granitic rocks and those with
syenitic affinities. Some of this work is still in progress, and additional
age work is contemplated and essential to attempt any material balance
between the granites and syenites.
Uranium
The
and
Thorium
uranium
Investigation
abundance
in
the
Florida
Mountains
is
of interest
for
several reasons. First, the rocks in which one might logically expect
uranium enrichment, viz. syenites and quartz syenites, are depleted in
uranium and thorium and Th/U is also low. Secondly, syenites typically
show a positive correlation between potassium (or potassium plus sodium)
and uranium. In Figures 2 to 5 are plotted U
A1203, andU
VS.
(Na20 + K20).
VS.
K20, U
VS.
A1203, Th/Uvs.
In all cases uranium shows
a negative
correlation with increasing alkali and alumina content. Despite scatter,
3
this holds true for surface samples as well as drill core samples. These
data may be interpreted in several ways, the two most obvious explanations
are:
(1) The syenites were derived from an alkali gabbro parent with low
Th and U; this model is possible as hornblende gabbro, presumably gradation
into syenite, is noted in the northern Floridas by (1971).
Corbitt (2) Uranium
(2)
has systematically been'lost due to weathering or other processes.
If
is
correct,
then,
assuming
normal U in
to
syenitic
rocks,
some
one
the
million
range 4-5
of ppm for granitic
tons
ofm y
uranium
(hypothetically)
100 km3 of rock. This in turn indicates that
have been released from just
either
high
uranium
in
stream
sediments
near
the
Floridas
might
result
or that small
(?) uranium deposits may be found in some of the sedimentsf
sedimentary rocks nearby. Critical to evaluating
(1) versus (2) is the
exact age relationship between the granites and syenites; Brookins
(1974)
has suggested that the syenites are not coeval with the granites, but how
much younger has not been resolved. This problem needs much more detailed
work.
The Th/U ratio for the Florida samples is shown as
6 ; Figure
despite
.
the positive correlation, deviation from =ThfU
4 is apparent. The U and
Ti
correlation
and Ti is
is
indicated
tested
with
in
Ti
Figure
7; a negative
enriched
in
correlation
the
between
U
U-depleted
syenitic
rocks.
Surface samples and dril1,core samples show the same trend. Collectively
these datahdicate, as mentioned earlier, that
a systematic variation
between granitic and syenitic rocks exists. The problem of temporal
relationship between the two rocks remains unsolved.
Whole
Rock
The'whole
Chemistry
rock
chemistry
for
the
Florida
Although rocks mapped as syenites
(FM-3, FM-4, F"7
samples
is in
presented
Table 2 .
(upper six samples),FM-8)
4
are justified basedon petrography (See appendix), their Si0 contents
2
are slightly higher than
normal syenites, a point made by Brookins
(1974)
and Brookins and Corbitt(1974). High total alkalis and alumina support
classification as syenites. Those rocks identified as granites possess
Si02 contents from
71-77 percent and are characterized by lower alumina,
total alkalies, titania. Iron is not systematically distributed between
the
various
rocks
although
it
is.
fairly
constant
for
any
one
drill
hole
thus suggesting relatively little iron
loss.
The.whole
trace
element
rock
chemical
data
are
data be
will
available
more
and
carefully
additional
interpreted
Rb-Sr
studies
when
have
been
completed.
Acknowledgments
Partial financial support was provided by the N.M. Energy Resources
Board (Grant #77-1104).
assistance
in
the
The N.M. Bur. Mines and Min. Resources provided
drilling
and
in
the
x-ray
fluorescence
spectrography.
R. T. Hicks, K. T. Emanuel andR. S. Della Valle of the University of
New Mexico assisted in the work. The facilities
P-2 and
of CNC-11 at
the Los Alamos
Scientific
Laboratory
were for
usedthe
uranium
and
thorium
analyses by delayed neutron activation analysis; acknowledgment is due
M. Bunker and J. P. Balagna.
5
REFERENCES CITETI
Brookins, D. G., 1974, Radiometric Age Determinations from the Florida
Mountains, New Mexico: Geology, v..2,
p. 555-557.
Brookins, D. G., and Corbitt,
L. L., 1974, Preliminary Rb-Sr Study of
Igneous Rocks of the Florida Mountains, New Mexico:
EOS Trans.
Am.
Geophys. Un., V. 55, p. 470-471.
Corbitt, L. L., 1971, Structure and Stratigraphy of the Florida Mountains,
New Mexico: Unpub. Ph. D. Thesis, Univ. Xew Mexico,
115 p.
6
TABLE 1
Th and U Data:
Sample
Th ( p p d
FM5-1
3.08
FM5-3
7.80
FM5-5
FM2-1
4.03
.
FM7-3
FM8-1
FM7-4
2.39
FM7-2
1.77
U (ppd
4.43
35.8
15.0
4.59
4.11
3.65
16.4
2.40
,
1.58
2.88
1.42
1.55
2.05
3.78
5.74
2.22
17.4
3.15
30.8
7.08FM7-6
3.89FM-11
FM7-8
1.83
4.48
5.36
18.2
FM7-1
4.07
1.52
2.80
3.70
3.63
4.81FM2-4
3.03FMl-6
Th/U
-
13.65
12.9
15.0
FM2-2
Florida Mountains
4.26
17.1
4.35
4.78
2.33
4.63
18.4
4.36
3.69
24.6
2.24
4.52
2.76FM7-5
FM4-1
1.87
FM5-6
4.18
FMl-2
4.56
13.0
7.26
19.8
23.1
4.71
3.88
4.74
5.07
FMl-7
2.33
2.57FM2-5
12.9.
5.54
11.5
4.47
4.17FMl-5
FM4-4
16.3
2.67
1.50
FM4-2
5.08
1.25
FM4-3
1.47
3.29
3.91
1.78
4.06
2.24
18.6
FM8-2
3.69
4.22FM2-8
FM7-5
1.65
FMl-3
5.44
,
2.77“2
FM2-3
3.15
18.9
6.82
14.5
3.35“4
16.2
4.54
4.84
7
TABLE 1 (continued)
Sample
F1183
2.98
F1184
3.05
F1185
8.04
F1187
3.63
1.38,
F1188
F1189
5.53
1.53
F1190
F1191
F1192
1.48
7.73
F1193
F1194
3.44.
4.80
F1195
3.56
F1196
”
F1197
”
F1198
”
F1199
F1200
F1201
”
SP9 m 0 ,
CDSWSElO .
GPSWSW97
SPE4
SPSW3
GPNE31
SPSENE26
SPSESE15
CDSWNW18
CDNW34
GPNwNw18
sPswsw26
GPNENE24
SPSWSW22
”
”
12.8
19.0
3.14
7.23
11.4
11.1
16.4
24.6
2.48
2.01
28.3
22.3
12.66
4.74
5.61
2.62
6.43
1.55
1.16
2.60
4.10
4.40
1.55
1.76
2.55
3.65
3.80
5.95
1.64
0.86
7.50
4.73
3.45
2.15
w6
8
TABLE 1 (continued)
, Th (ppm)
Sample
u
bpm)
GPCNW31
1.66 2.33.
GP
1.48
SPNWNE23
2.02
SPC4
4.02
14.49
SPWC19
SPNwNw25
SPSW36
7.69
2.86
"
3.07
3.63
2.36
GPCNE31
6.22
GPNE13
CENENElO
CDsw3
GPSESEM
SP9 s m o
+
GPSESE14
SPSWSW36
I
"
"
4.22
9.33
1.68
2.69
1.77
0.65
1.37
3.58
1.55
3.20
15.98
1.25
4.67
CDNElO
SP9
CDCNE3
GPNESWlZ
GPNWNW24
1.40
3.34
18.1
GPNESW14
SPSSW3
3.33
3.95
1.86
1.226.08
NOTES :
(1) FM samples from drill core (see Fig.
1)
(2) F1183-1202 surface samples; see Brookins
(1974)
(3) CD = Capitol Dome Quadrangle (Corbitt, 1971)
(4)
GP = Gym Peak Quadrangle (Corbitt, 1971)
(5) SP = South Peak Quadrangle (Corbitt, 1971)
9
TABLE 2
Whole Rock Analyses
-- Florida
FMl-1
m-2
FM1-3
FMl-4
FMl-5
FMl-6
FMl-7
"8
71.42
.35
13.03
4.83
.19
.34
4.28
4.94
99.38
71.92
.29
12.54
5.02
.29
72.46
.28
12.49
4.04
4.70
99.22
70.90
.26
12.36
6.66
.63
.37
3.32
4.62
99.12
.32
.35
3.57
4.77
99.26
71.42
.30
12.56
5.42
.61
.49
3.61
4.88
99.29
72.14
.30
13.10
3.98
.24
.40
4.38
4.88
99.42
71.10
.33
12.63
4.96
.47
.38
4.10
5.05
99.02
70.79
.30
13.07
4.42
.49
.53
4.12
5.15
98.87
FM2-1
FM2-2
m - 3
FM2-4
FM2-5
m-7
FM2-8
FM3-1
77.42
.32
11.68
2.32
.18
.02
2.38
5.06
99.38
76.85
.32
11.19
4.14
.14
74.28
.40
11.63
5.30
.21
nd
2.47
73.48
.48
99.39
76.76
.33
11.05
4.45
.13
nd
2.26
4.67
99.65
99.52
74* 98
.40
12.26
4.69
.15
nd
2.95
5.16
100.59
74.56
.52
12.49
3.83
.10
nd
2.85
5.41
99.76
64.58
.28
15.80
5.85
.56
.48
4.00
6.44
97.99
m-2
FM3-3
FM4-1
FM4-2
FM4-3
FM4-4
FM4-5
FM5-1
63.36
.24
17.36
6.10
.56
.44
4.00
5.77
97.83
62.86
.35
16.29
7.61
.41
.45
4.32
5.66
97.95
61.85
1.08
16.52
5.18
1.15
6.80
5.79
100.48
60.47
1.24
16.35
6.32
1.84
2.52
6.74
5.43
100.91
59.78
1.39
16.67
6.57
1.81
2.40
7.20
5.51
101.33
61.15
1.14
17.12
5.54
1.66
1.90
6.82
,5.77
101.10
60.88
1.30
16.99
6.06
1.79
1.69
6.89
5.84
101.44
72.41
.31
13.20
3.98
.20
.30
2.85
5.04
98.29
FM5-2
FM5-3
FM5-4
FM5-5
FM5-6
FM7-1
FM7-2
FM7-3
73.50
.31
12.27
4.17
.19
.35
3.80
4.79
99.38
70.10
.65
12.38
7.36
.32
.16
3.74
4.56
99.27
73.54
.33
12.61
4.14
.16
.20
4.33
4.29
99.60
73.90
.27
12.48
3.71
.20
.24
4.11
4.53
99.44
75.20
.28
11.80
4.02
.13
.12
3.86
4.36
99.77
65.56
.69
18.96
1.03
.43
.48
6.65
6.58
100.38
64.56
.74
18.12
3.08
.32
. .41
6.66
6.29
100.18
65.14
.80
18.58
1.47
.36
.53
6.69
6.74
100.31
.42
nd
2.31
4.67
99.62
5.10
2.11
5.02
Mountains
12.55
4.54
.23
nd
3.03
5.21
"
10
Si02
Ti02
A1203
Fe203
MgO
CaO
Na20
K20
total
FM7-4
FM7-5
FM7-6
m7-7
FM7-8
65.09
.63
18.06
2.44
.49
.49
6.58
6.30
100.08
64.66
.58
18.24
2.44
.40
.41
6.61
6.52
99.92
70.45
.26
15.20
2.59
.30
.17
5.14
5.44
99.55
70.41
.30
16.02
1.32
.26
.21
5.75
5.53
99.80
68.23
63.77
.32
.68
14.56
14.31
17.42
4.40
4.48
.24
.43
.68
.58
.41
6.45 6.44 5.74
6.19
5.45
99.83
99.52
99.27
FM8-2
FM8-1
67.94
.29
4.00
.19
5.42
FLORIDA MOUNTAINS
"c
FLORIDA MOUNTAINS
KzO
A
12
U
VS.
A
8.
A SURFACE SAMPLE -SYENITE
-
A SURFACE SAMPLE GRANITE
SYENITE
DRILLHOLECORE
7-
x
GRANITE
DRILL H&E CORE
”+
60
(u
Y
X
.5-
4i
FIGURE: 2
A
X
13
FLORIDA MOUNTAINS
A1203 VS. U
19
'c.
Yo
18
0'
17
o e
\
0
8
I:
e
1
1
I
2
3
FIGURE 3
4
14
FLORIDA MOUNTAINS
vs. Th/U
19 -
\@
0
18-
I 7-
0
4
16-
\:
e
i3 0
12.
I I.
FLORIDA MOUNTAINS'
(No20 K201 vs. U
15
+
A SURFACE SAMPLE -SYENITE
A SURFACE SAMPLE-GRANITE
I3
i .t
@
e
SYENITE
DRILL HOLECORE
GRANITE
X DRILL
HOLECORE
e
A
A
X'
A
0
nl
2
O
Y
9
i
I
A
A
X
A
A
X
x
A
x
X '
X
7
,
X
X
X
X
A.
X
X
X
A
x
xx
A
X
.A
X
A
n
FLORIDA MOUNTAINS
Th vs. U
30
7'
e
n
n
E 20
n
a
8
e
IO
0
c
OI
e
e-'
17
FLORIDA MOUNTAINS
Ti02 vs.. U
I .4
I .a
A
I .2
1‘ :d
0
n
Y
0.9
c!? 0.8
0.7
0.6
x
a
0.5
0.4
0.3,
0.2,
0.
x
P%xpx
X xx
X
A
M
A
X
X
A
A
A
A
18
FLORIDA MOUNTAINS
Sample Descriptions and SpecGen Status
Spec. No.
Location
.
Depth
1"
-2
-3
-4
-5
'
-6
-7
-a
FM2-1
-2
-3
'
-4
-5
-6
-7
-a
r
FM3-1
-2
-3
'
F M4-1
-2
-3
-4
-5
FM5-1
-2
-3
SE/NE/Se/13/26S/8W
0- 5
5-10
10-15
15-20 .
20-25
25-30
30-40.
40-50
0- 5
5-10
10-15.
15-20
20-25
25-30
30-35
35-40 '
0- 5
-5-10
~.
10-15
0- 5
5-10
10-15
15-20
20-21
-a
0- 5
5-10
10-15
15-20
20-25
25-30
0-10
10-20
20-30
30-35
35-40
40-45
45-50
50-55
FM8-1
-2
0- 5
5-13
-4
-5
-6
FM7-1
-2
-3
-4
-5
-6
-7
Map Unit
FLORIDA MOUNTAINS
Description and Location of Rocks
1. O r t h o c l a s e , G r a n i t e
Sections 10, ll', 1 4 T. 25 S.,
R. 8 W. C a p i t a l Dome area.
i
2.
Hornblende P e r t h i t eS y e n i t et oQ u a r t zS y e n i t e
S e c t i o n s 25, 35, 36 T. 25 S., R. 8 W.
NW Portions Sections 6, 18 T. .26 S., R. 7 W.
Mostly nortii of major fault.
3.
P e r t h i t eB i o t i t eS y e n i t e
S e c t i o n 25 T. 25 S., R. 8 W.
S e c t i o n s 30, 31 T. 25 S., R. 7 W.
North o f major fault.
4.
P e r t h i t eQ u a r t zS y e n i t e
S e c t i o n 36 T. 25 S.; R. 8 W.
S e c t i o n 31 T. 25 S., R. 7 W.
North of major f a u l t .
5.
Hornblende P e r t h i t e Granite
Sections 25, 36 T. 25 S., R. 8 W.
Section 31
25 S., R. 7 W.
Sections 9, 10, 1 4 T. 26.S., R. 8 W.
Section 18 T. 26 S., R. 7 W.
I d e n t i c a l to h o r n b l e n d e p e r t h i t e s y e n i t e
more quartz.
'I.
6.
and p e r t h i t e s y e n i t e e x c e p t
O r t h o c l a s eP l a g i o c l a s eM i c r o c l i n eP e r t h i t eG r a n i t e
Sections 2 , 9, 10, 12, $3, 14, 15, 16, 23, 24 T. 26 S.,
Sections 18, 1 9 T. 26 S., R. 7
South of major f a u l t .
W.
R. 8 W.
-
LOCATION
ROCK
m4-3-
Brecciated
Hornblende
Perthite
Quartz
FM4-5SPNW-25SPNW-25"SPNENE-35GPNWNW-6GPCNW-6BGPNWNWL8B
Hornblende
Perthite
Quartz
Syenite
SPNENE-25GPSWNE-30GPCNE-3lA-
Biotite
SPNWNE-23SPSESE-23SPCNE31BSPSWSE31CDCNE31-
Perthite
FM7-4-
Perthite
Quartz
Syenite
FX7-6-
Perthite
Plagioclase
Quartz
Syenite
SPSW-36-
Brecciated
Perthite
Quartz
Syenite
SPSWSE36-
Brecciated
Perthite
Orthoclase
Quartz
FM8-2
Hornblende
Perthite
Granite
It
I,
1,
11
1,
I,
11
It
11
It
11
It
11
11
11
I1
11
I,
11
It
I.
I1
1,
Perthite
Quartz
11
It
11
Quartz
I,
11
11
Syenite
11
It
I1
11
11
11
I,
11
11
11
It
SPNWNW25SPSENE-26ASP-SW-36(?)GPNW-31ASPSENE-14GPSENE14
I,
I1
I1
I,
I,
71
SP9+SW-lOA
SP9i-SW-lOB
s999w-10-
1,
11
I,
I.
It
11
SPSENE26BSPWNE-26SPSESE-26SPNENE-35SPSW-36ASPSESE-2SPNE-2SPNESE-4-
Perthite
I,
11
11
I,
I1
11
11
It
1,
It
11
.
Syenite (calcito)
11
I,
11
II
11
1,
I,
I,
I,
I,
It
(Cont.)
21
(cent.)
LOCATION
SPE-4SPCN-4
SPSW-3ASPSW-3BSPSSW-3GPNwNw-18CGPSESE-14CGPNWSE-14GPNENE-23SPSWNW-16
GPESE 14
'
Perthite.
I,
11
11
(1
I,
11
11
11
1.
II
I.
FM 1-8
SPNESE 26SP-SW?NW?-2SPSW-3SPSW-3cSPSN-3ESPSWSW9-
Brecciated
FM-3-
Perthite
-
ROCK
-
11
Perthite
If
11
11
II
11
It
Granite
11
I!
11
I,
It
11
I1
I1
11
11
Orthoclase
Granite
I,
11
SP-SW-3DSPSW-3-
Orthoclase
Granite
SP9i-W-lOB-
Orthoclase
Plagioclase
Granite
SPSW16
Orthoclase
Perthfte
Granite
FM5-2
Orthoclase
Granite
FM5-6
CDNE-10
It
,I
11
I,
(Calcite)
CDSWSE-10
.Granophyric
Orthoclase
Granite
GPNESW-12
GPSWSW-13
Perthite
Plagioclase
Granite
GPSESE-14B
Perthite
11
Perthite
SPNWNW-14?
11
GPCSE14
I,
GPSWNE14
II
GPSWNW14
I,
GPNESW14
SPSESE-14-15 or R "
11
SPSE16D
I,
SPSE16B
I,
SPSE-45?
I,
,I
Granite
Orthoclase
Plagioclase
11
I,
11
It
11
I,
I1
rr
11
I1
11
It
I,
I,
It
I,
22
ROCK
-
LOCATION
:lase
SPSWSE15
Granophyric
Perthite
Orthoclase
Plagioc
GPNESE13
Perthite
Orthoclase
Microcline
Plagioclase
GPSW31B
Granophyric
Perthite
Orthoclase
Granite
FM2-8
Granophyric
Perthite
Orthoclase
Plagioclase
SP99SWlOA
Perthite
.
GPSESE14A
Perthite
Orthoclase
Grkite
cDswsWl4
Orthoclase
Perthite
Plagioclase
Granite
SPSESE14
Orthoclase
Perthite
Granite
SPSESE-15
Granophyric
Perthite
Orthoclase
Plagioclase
SPSE16E
Microcline
Perthite
Granite
GPSwNw18
Hornblende
Orthoclase
Plagioclase
Granite
GPNWNW24
Orthoclase
Plagioclase
Granite
GPNENE24
Orthoclase
Perthite
Granite
GPSWSElOA
Granophyric
orthoclase
Granite
SP9SWlOA
Plagioclase
Orthoclase
Granite'(Ca1cite)
GPNWNWl8A
Orthoclase
Plagioclase
Granite
SPSE45?
Granophyric
Perthite
Orthoclase
Plagioclase
CDNWNE14
Perthite
Plagioclase
Granite
CDSWSWll
CDSWll
Orthoclase
Granite
GPSWSWl7?
Perthite
Granite
GP-SWNE36
Orthoclase
Quartz
Syenite (Calcite)
GP-SW3lA
Biotite
Orthoclase
Syenite
SPSENW16
SPSWNE12
SPE17
SPSWSW22?
Perthite
Orthoclase
SPCNW6A
Perthite
Orthoclase
Plagioclase
Quartz
SPCNE34C?
Biotite
Perthite
Orthoclase
Syenite
(Calcite)
I1
Granite
Granite
Granite
Granite
Quartz
Orthoclase
.
Granite
. ..
Granite
II
Quartz
Syenite
It
I,
I,
I,
I,
I1
I1
I,
I,
I,
I1
,I
Syenite