united states department of the interior … · granitic plutons and for making regional...
TRANSCRIPT
UNITED STATES DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
PETROGRAPHIC AND CHEMICAL DATA ON MESOZOIC GRANITIC ROCKS OF THE
EAGLE QUADRANGLE, ALASKA
By
Helen L. Foster, Mary M. Donate, and M. Elizabeth Yount
Open^file Report 78-253
1978
This report is preliminary and has not been edited or reviewed for conformity with Geological Survey standards and nomenclature
Introduction
The Eagle quadrangle (index map, bottom of plate 1), located in
the northeastern part of the Yukon-Tanana Upland of east-central Alaska,
is underlain by a complex assemblage of igneous and metamorphic rocks
(Foster, 1976). The igneous rocks include an abundance of Mesozoic
granitic plutonic rocks which intrude a greenschist to amphibolite
facies terrane consisting of quartzite, schist, gneiss, and marble of
uncertain (Paleozoic?) age. The plutons are generally homogeneous and
lack internal directional fabric* Their compositions range from pyrox-
enite and hornblendite to granite, but rocks more mafic than quartz
diorite are excluded from this report as are dike rocks.
Little published data are available for comparing these granitic
rocks with those elsewhere, particularly in other parts of Alaska and
in Canada. Results of petrographic and chemical analyses are presented
in this report to provide a data base for characterizing the Mesozoic
granitic plutons and for making regional comparison.
Field data were collected during the course of reconnaissance geb-~
logic mapping of the Eagle quadrangle from 1963 to 1971 (Foster, 1976).
Assistance on this project was given in the field by T. E. C. Keith
(1964, 1966, 1970), Jo Laird (1969-1970), F. R. Weber (1969-1971),
S. H. B. Clark (1968) and Diana Grunig (1971). Laboratory assistance,
including point counts for modal analyses and drafting, was given by
Phillip Frame, A. M. Cantelow, and S. T. Luthy.
Method of data presentation
The data presented here include 61 modal analyses obtained by
point counts on stained slabs (table 1), 39 whole rock chemical analyses
(table 2), and 289 semiquantitative spectrographic analyses (table 3).
Available radiometric age determinations are included in table 1. Com
parisons of major element chemistry are shown in ternary plots (figs. 1-4).
To aid the reader in locating the samples described in this report,
the granitic rocks are assigned to 14 plutons; pluton number 3 is sub
divided into 8 parts, A-H (tables 1, 3; plates 1,2). The subdivisions
are not based on petrographic or chemical characterisfics but are entirely
arbitrary. Because the genetic relationships of the granitic rocks are
not yet studied and the plutons are not mapped in detail, some plutons
which, for presenting data, are here considered as separate masses; also,
some plutons represented as a single body may, in fact, be composite.
The nomenclature and classifications of the granitic rocks (table 1)
follows that of the IU6S Subcommission on the Systernatics of Igneous
Rocks (Streckeisen, 1973).
Chemical data
All but four of the whole rock major element chemical analyses were
made by the rapid rock method described by Shapiro (1967) and by the
rapid rock method supplemented by atomic absorption (Shapiro and Brannock,
1967). Standard rock analyses (Peck, 1964) were performed on the remain
der. The rock analyzed is the freshest available that is considered
characteristic of the major plutons.
The U.S. Geological Survey computer program, "General Rock Norms
Mod 2" (C-128), was used to calculate CIPW norms (table 2) and to pro
duce the ternary diagrams (figs. 1-4). The calculations are explained
in the program description (Fit2gibbon, 1969).
Samples analyzed for semiquantitative spectrographic analyses were
collected as part .of a geochemical sampling program for the Eagle quad
rangle, and most of the granitic rock specimens are single grab samples
collected for background information. However, a few were collected
because of visible sulfides or alteration.
Samples are identified by their field numbers, but on table 3, a
computer printout, it has been necessary to abbreviate field numbers by
giving only the last digit of the year of collection and omitting "A",
which indicates that these samples were collected in Alaska. Where "8"
or "9" is the first number in the sample number, the years 1968 or 1969
are indicated. Where "0", "1", or "3" occur as the first number, the
samples were collected in 1970, 1971, or 1973, respectively.
Samples were analyzed for thirty elements on a DC-arc emision
spectrograph using a six-step sewfquantitative method described by Grimes
and Marranzino (1968). Because no values were reported for gold and
cadmium, these elements are omitted from table 3. However, an atomic
absorption spectrophotometrie method described by Ward and others (1969)
was used to more accurately determine the abundance of gold, and this
is reported in the last column of table 3.
For the semiquantitative spectrographic analyses, results are
reported as six steps per order of magnitude (1.0, 1.5, 2.0, 3.0, 5.0,
and 7.0 or powers of 10 of these numbers). These values are approximate
geometric midpoints of the class intervals shown below.
Reported values Class interval limits
I n -rr r,,_-_ , JL \J «:u i»l _«»_...
JL . J * ~~ "~r " m " " " ""
2.0 W * W ************ mmam*m^m*^*aMm
5.0
O P'3 O J
- 1.21 0
- 2.63 Q O
- 5.6
1.2 1.8 2.6 3.8 5.6 8.3
Spectrographic analytical precision is given by Hatooka and Grimes (1976)
Values for Fe, Mg, Ca, and Ti are given in percent. Values for all
other elements are given in parts per million. Limits of determination
for the semiquantitative spectrographic analyses are as follows:
Fe 0.5 percent Ba 20 ppm Mo 5 ppm V 10 ppmMg .02 percent Be 1 ppm Nb 10 ppm W 50 ppmCa .05 percent Bi 10 ppm Ni 5 ppm Y 10 ppmTi .002 percent Cd 20 ppm Pb 10 ppm Zn 200 ppmMn 10 ppm Co 5 ppm Sb 100 ppm Zr 10 ppmAg -.5 ppm Cr 10 ppm Se 5 ppmAs 200 ppm Au 5 ppm Sn 10 ppmB 10 ppm La 20 ppm Sr 100 ppm
References cited
Fitzgibbon, Denlse, 1969, General Rock norms mod 2: U.S. Geol. Survey
Program Documentation.
Foster, H. L., 1976, Geologic map of the Eagle quadrangle, Alaska: U.S.
Geol. Survey Misc. Geol. Inv. Map 1-922, scale 1:250,000.
Grimes, D. J., and Marranzino, A. P., 1968, Direct-current arc and
alternating-current spark emission, spectrographic field methods
for the semiquantitative analysis of geologic materials: U.S.
Geol. Survey Circ. 591, 6 p.
Matooka, J. M., and Grimes, D. J., 1976, Analytical precision of one-
sixth order semiquantitative spectrographic analysis: U.S. Geol.
Survey Circ. 738, 25 p.
Peck, L. C., 1964, Systematic analysis of silicates: U.S. Geol. Survey
Bull. 1170, 89 p.
Shapiro, Leonard, 1967, Rapid analysis of rocks and minerals by a single-
solution method, in Geological Survey research, 1967: U.S. Geol.
Survey Prof. Paper 575-B, p. B187-B191.
Shapiro, Leonard, and Brannock, W. W., 1967, Rapid analysis of silicate,
carbonate, and phosphate rocks: U.S. Geol. Survey Bull. 114AA,
p. 1A-56A.
Streckeisen, A. L., 1973, Plutonic rocks, classification and nomencla
ture recommended by the IUGS Subcommission on the Systematics of
Igneous Rocks: Geotimes, v. 18, no. 10, p. 26-30.
Ward, F. N., Nakagawa, H. M., Harms, T. F., and Van Sickle, G. H., 1969,
Atomic-absorption methods of analysis useful in geochemical explor
ation: U.S. Geol. Survey Bull. 1289, 45 p.
Table 1.
See attached 3 sheets
Tab
le 2.
Majo
r el
emen
t ch
emic
al
anal
yse
s in
wei
gh
t perc
ent
and
CIP
W n
orm
ativ
e m
iner
als
for
39 g
ranit
ic
rock
s of
the E
agle
Qu
adra
ng
le,
Ala
ska
Anal
yst
s:
S.
Ber
thold
, S
. B
ott
s,
L.
Shap
iro,
and
H.
Sm
ith.
* I
ndic
ate
s st
andar
d ro
ck
analy
sis,
m
etho
d des
crib
ed
by P
eck
(19
64
).
All
oth
ers
are
ra
pid
rock
analy
ses,
m
etho
d des
crib
ed
by S
hap
iro
an
d B
rann
ock
(19
67
).
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Tab
le 2
. M
ajo
r el
emen
t ch
emic
al an
alyse
s in
wei
gh
t perc
ent
and
CIP
W n
orm
ativ
e m
iner
als
for
39 g
ran
itic
ro
cks
of
the E
agle
Q
uad
rangle
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lask
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onti
nued
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Tab
le
2.-
-Maj
or
elem
ent
chem
ical
an
alyse
s in
wei
gh
t p
erc
en
t an
d C
IPW
no
rmat
ive
min
eral
s fo
r 39
gra
nit
ic ro
cks
of
the E
agle
Q
uad
rangle
, A
lask
a C
onti
nued
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Q-
EXPL
ANAT
ION
O
F SY
MBO
LS
X -
n o
QTZ
M
ON
20N
ITE
Q
TZ
MO
N20
DIO
RIT
E
6R
RN
ITE
Q
TZ
DIO
RIT
E
GR
RN
OD
IOR
ITE
FIBOR
GR
fiNIT
IC
RO
CK
S
FRO
M
THE
E
fiGLE
Q
UR
D.
RLR
SK
R
Fig
ure
1.
No
rma
tive
com
posi
tions
of
39 g
ranitic
ro
cks
from
the
E
agle
qu
adra
ngle
, A
lask
a,
repr
esen
ted
1n
the
tern
ary
syst
em A
b-O
r-Q
. M
ajor
ele
men
t ch
emic
al
anal
yses
ap
pear
In
ta
ble
2.
EXPL
ANAT
ION
OF S
YMBO
LS
X -
QT
Z
MO
NZ
ON
ITE
+
-
QTZ
M
ON
ZO
DIO
RIT
E
+ -
GR
flNIT
E
# -
QTZ
D
IOR
ITE
O
-
GR
flNO
DIO
RIT
E
GR
flNIT
IC
RO
CK
S
FRO
M
THE
E
flGLE
Q
UflD
, flL
flSK
fl
Fig
ure
2.-
-No
rma
tive
com
posi
tions
of
39 g
ranitic
ro
cks
from
the
E
agle
qua
dran
gle,
A
lask
a,
repr
esen
ted
in
the
tern
ary
syst
em A
b+A
n-Q
-Or.
Maj
or e
lem
ent
chem
ical
an
alys
es a
ppea
r 1n
ta
ble
2.
EXPLANATION
OF S
YMBOLS
X -
QTZ
M
ON
ZO
NIT
E
-I- -
QTZ
M
ON
ZO
DIO
RIT
E
+ -
GR
flNIT
E
tt -
QTZ
D
IOR
ITE
O
-
GR
flNO
DIO
RIT
E
GR
RN
ITIC
R
OC
KS
FR
OM
TH
E
EflG
LE
QU
RD
, flL
RS
KR
Fig
ure
3. N
orm
ativ
e c
ompo
sitio
ns of
39 g
ranitic
ro
cks
from
the
Eag
le q
uadr
angl
e,
Ala
ska,
re
pres
ente
d 1n
th
e te
rna
ry
syst
em A
b-O
r-A
n.
Maj
or
elem
ent
chem
ical
an
alys
es
appe
ar
1n
table
2.
EXPL
ANAT
ION
OF
SYM
BOLS
X -
QTZ
M
ON
ZON
ITE
+
-
QTZ
M
ON
ZOD
IOR
ITE
+
-
GR
RN
ITE
tt
-
QTZ
D
IOR
ITE
O
-
GR
RN
OD
IOR
ITE
RLK
GR
RN
ITIC
R
OC
KS
FRO
M
THE
E
RG
LE
QU
RD
, R
LRS
KR
Fig
ure
4. T
ern
ary
Alk
-F-M
dia
gram
for
39 g
ranitic
ro
cks
from
the
Eag
le q
uadr
angl
e,
Ala
ska.
A
lk
mo
lecu
lar
F
mol
ecul
ar F
eO+F
e^O
-; M
m
olec
ular
MgO
. M
ajor
ele
men
t ch
emic
al
anal
yses
app
ear
1n ta
ble
2.
Tabl
e 3.--Semiquantitative spectrographic analyses of Mesozoic granitic rocks of Eagle qu
adra
ngle
, Al
aska
[Analysts:
K. J. Cu
rry.
A. L.
Me
ier,
R. L.
Mi
ller,
D. J. Murrey,
G. W. Da
y, H.
D
4 Ki
ng,
arid
R.
B. Tr
ipp.
"S"
before an el
emen
t in
dica
tes
analysis by
emis
sion sp
ectr
ogra
phy.
AA
" before an
el
emen
t in
dica
tes
analysis by
at
omic
absorption.
Anal
yses
gi
ven
in parts
per
mill
ion
for
all
elements except Fe
, Mg
, Ca,
and
Ti,
which
are
given
in pe
rcen
t.
Zero
s to right
of de
cima
l point
may
or m
ay not
be si
gnif
ican
t.]
samp I
e
8CS296
8CS297
8CS
369
1W
R160B
1FR323
1FR367
8CS283
8CS284
8CS285
8CS287
9FR67A
9FR696
9FR699
9FR254
9FR257B
9FR272
S-FE%
10.00
20.00
15.00
S-MGX
5.00
7.00
3.00
S-CAX
10.00
10.00
7.00
S-TIX
1 .000
1.000
S-MN
1/500
3/000
.700
2/000
5.00
15.00
15.00
7.00
5.00
7.00
10.00
.70
5.00
3.00
10.00
3.00
3.00
1.50
7.00
3.00
.30
.70
1.00
3.00
.20
1.00
.70
1.50
1 .00
.70
1.50
3.00
7.00
7.00
7.00
7.00
7.00
.70
1.00
1 .0
02.00
5.00
1.50
.500
1 .000
.700
.700
.500
.500
>1.000
.070
.300
.300
.700
.300
. 30
0
2/000
1/500
2/000
1/500
1/000
1/500
1,500
200
300
500
1/000
700
500
S-AG
S-AS
S-B
Pluton no.
1
10 1 5
Pluton no.
2
N N
10
Pluton no
. 3A
8FR467
8FR470A
8FR470B
68AFRA72
8CS385
1 FR23A
1FR237
1FR252
1 FR257
1WR1 31 A
1 WR131 C
1FR286
1FR287
1 FR291
10.00
10.00
7.00
10.00
10.00
7.00
7.00
5.00
7.00
5.00
5.00
10.00
5.00
7.00
5.00
5.00
3.00
5.00
1 . 50
1.50
5.00
.70
U50
.70
1 .00
3.00
1.00
2.00
7.00
5.00
5.00
7.00
2.00
1 .50
3.00
.50
1.50
.20
1.00
3.00
1.50
3.00
1 .000
.700
.700
1 .000
.700
.300
.560
.300
.300
.300
.300
.700
.300
.700
1/500
1 ,500
1 /500
300
1,500
1 /500
1/500
700
1/500
1 ,000
700
1/500
1/000
1 ,500
N N N N N N N N N N N N N N
N N N N N N N N N N N N N N
PIuton no.
38
<10
Pluton no.
3C
S-BA
1,50.0
>5/000
2/000
S-8E
.0
.0 .0
S-BI
S-CO
20 50
1/500
1 .5
15
N N N N N . 5 N N N N N N
N N
Plu
ton
n
o.
N N N N N N N N N<
20
0
<1
00
0
3D
10 1 5
< 1
010
N
15 10 1 5 ^o 30
?/
1/
1/
2,
1 /
1/
1 /
1/
700
700
000
ono
500
000
5no
500
700
500
500
000
<1 .
01
.5
<1 .
01
.51
.0<1
.0
1 .5
1 .0
1 .5
1 .0
2.0
3.0
N N N N N N N N N N N N
70
30 15 70 15 20N 5 N
10 <5 <5
S-CR
30 20 20 20
700 30 70 50 70 15N
10
10
10
<5
10
S-CU
1 5
30 50 70 150 70 1 5
20 705 7 7
<5 105
S.-L
A
?0
30
<20
< < <
1 0 10 1 0
10 20
<1 0
< < < < < <
1 0
1 0
1 0
10 1 5
10 1 0
10
1 1 2 1 1 1 1 1 1 1 1 1 1/ / / / / / / / / / / / /
50
050
000
00
00
500
000
700
00
050
050
0
500
000
000
5no
<1 <1 <1 <11 1
<11 1 1 1
<11
<1
.0 .0 .0 .0 .0 .0 .0 .0 .0 .5 .5 .0 .0 .0
N N N
20
0 N N N N N N N N N N
15 10 <5 50 10 10 30 10 15 <5
730 <5 15
15 <55 5
1 5
302
00
< 1
030
00 1
570
< 1
0<
10
20 1 5
20
300
30
0 70100
70 50
70
.
503
00 70 70
20 30<
20 20 30
<2
0 N
< 7
0
20
<2
0 70
<2
0 20 N
<2Q N
50 30
70
50
?0 N
70
1 50
2D
70
70
Table
3
. --
Se
mi -q
ua
n t i t
a t i
we
spec t
ro
q r
ap
h i c
analy
ses
of
Meso/o
ic
qra
nitic
ro
cks
of
Ea
qle
quad r
an q
I »
/ A
laska
Co
ntin
ue
ci
sa
mp
le
8CS296
8CS297
S-M
OS
-NB
30
S-N
IS
-Pfl
10
S-S
BS
-SC
30 70
S-S
N
S-S
R
S-V
P lu
ton
no
. 1
S-W
S-Y
30 70
S-
7.N
N <
20
0
S-Z
R
70
10
0
AA
-AU
-P
<.0
2
8C
S3
69
1030
15
0
8FR467
8FR470A
8FR470D
68AFRA72
8CS385
1FR23A
1FR237
1 FR252
1 FR257
1UR1 31
A
1WR131C
1 FR286
1 FR287
1FR291
N N N N N
<5 <5 <5N N N
<5N N
10 10<1 0
< 1 0
15
N N N1010
10 10 10 10
5<5
5<5 5
70
100 7 5 7 510 5<5
30 20300 10 30
150 30 70 30 50 30 70 50 30
N N N N N N N N N N N N N N
3020 15 307
20 30 7
207
1 5
30 1 5
30
N N N N N N N N N N N10 N N
700
700
300
500
200
300
700
300
300
150
300
300
300
300
200
200
1 50
300
100
1 50
300 70
1 50 70
1 50
500
700
200
N N N N N N N N N N N N N N
30
30 20
30 30
?0
30
20
20 20
30 30 20 30
N N N N N N N N N N N N N N
.300
150
100
200
700
150
100
150
300
200
200
100
150
500
<. 0?
<.02
<.02
<.02
<.02
<.D2
<.02
<.02
<.02
<.02
<.02
<.*0
2<.02
<.02
1W
R1
60
B30
1515
200
1 50
<.0
2
1FR323
1FR367
<5
<5200
<5N
3050 70
30 30
200
500
<.02
<.02
8CS283
8CS28A
8CS285
8CS287
9FR674
9FR696
9FR699
9FR254
9FR257B
9FR272
N N N N N N N N N N
1 5
2010
20<10 10 10 10 1 5
<10
7 5 5<5N 7
<5 10 10 1 5
70 30 50 1 5
30 30 1 5
30 20 30
N N N N N N N N N N
3030 15 50N
1 5
1 5
10N 7
N N N N N N N N N N
300
700
500
300
150
150
200
200
300
200
1 50
1 50
1 50
300 1 5
70 501 50 70 30
N N N N N N N N N N
50
3030 50 30 20 30 20 20
1 5
N<200 N N N N N
<200 N N
200
100
300
200 70
200
100
1 50
200
100
<.02
<. 0?
<. 02
<. 0 2
<.02
<.02
<. 0 ?
<.02
<. n?
<.02
Table
3 .--Semi-quantitative spectroqranhic analyses of
Mesozoic granitic rocks of Eaole quadranolp,
A I aska--continued
sa
mp
le
OF
R2437
OF
R322
OF
R3
23
AO
WR
64O
WR
100
OW
R10
1O
WR
10
2O
WR
1 1
7O
WH
1 1
8O
WR
A3E
1 F
R1
00
1F
R103
1 F
R1
06
A1
FR
10
6B
1F
R11 1
A
1F
R11 1
B1
UR
81
1W
R8
31
WR
84B
1W
R87
1W
R8
81
FR
21
41
1F
R1
83
1 F
R1
86
1F
R79A
S-F
EX
5.0
0io
.no
1 .5
05
.00
.70
15.0
07
.00
3.0
03
.00
7.0
0
3.0
05
.00
3.0
05
.00
2.0
0
7.0
05
.00
5.0
03
.00
7. '
00
5.0
02
.00
3.0
0.7
010.0
0
S-M
GX
1.
502
.00
.03
2.0
0.1
0
1 .5
01
.00
1 .5
0.7
01 .0
0
1.0
0.7
0.7
0.1
0.5
0
3.0
01
.50
1.5
0.5
0.7
0
.05
.70
1.0
0.0
73
.00
S -
C A
'/.
2.0
02
.00
.30
3.0
0.0
5
.30
.05
<.0
5.3
0.3
0
1.5
01
.50
1.5
0.0
5.5
0
3.0
01
.50
1.5
0.5
0.1
0
.05
.15
1.5
0.3
0.3
0
S-T
IX
.30
0.7
00
.03
0.3
00
.03
0
.30
0.5
00
.30
0.
200
.30
0
.30
0.3
00
.20
0.1
50
.20
0
.70
0.3
00
.30
0.
30
0
*.2
00
. 1
50
.20
0.2
00
.07
0.7
00
S-M
N
700
1 ,5
00
150
1,0
00
70
0
50
0300
150
1,5
00
70
0
70
01,0
00
70
01
50
50
0
1,5
00
1,0
00
1 ,5
00
700
500
10
0150
70
01
50
1,0
00
S-A
G
N<
.5 N N1
.0
1 .5
< .
52.0 N
1 5.0 N N N .5 N N N N N
<.5 N
1 .5 N N N
S-A
S N N N N N N N N N N N N N700 N N N N N N N N N N N
S-B 10 2
030 10
30 15 70 30 30 20 10
00 10
< 1
000
00 10
< 1
01
501
50 1 5
10O
0 30
10
S-B
A
7no
700 50
700
15
0
70
0700
30
02
00
200
700
700
15
0300
700
1,0
00
700
1,0
00
30
01
,00
0
1,5
00
70
01
,00
0150
1,5
00
S-I
3E
1 .
52.0
2.0
1 .5 ?.o
1 .5
3.0
3.0
3.0
7.0
2.0
1 .5
3.0
3.0
3.0
0 .
02.0
2.0
3.0
3.0
1 .5
3.0
1 .5
7.0
2.0
S-P
I
N N N N<
10
<1
0 N70 N
200 N N N N
<1
0 N N N N N N0
0 N<1
0 N
S-C
O
520 <5 m N
20 <5 <5N N
10
<5 N N N
30 15 157 5 N
<5 5 N
20
?-C
R
10 20 10 30
00 20
20
20 20
00 20
00
O 0 1
51
0
15
0 20 30
15
15
00
200 1 5 N
15
0
s-cu 70 70
50
70
10
0
100
100
70
70
300
30
70
50 30
70
70
70
70
70
70
50
mo
100
10
0150
S-L
!
15
0 70 N
20 N
7H<
20
< 20
< ? o N N
<2
0 50N
30
<20 20 30 70
30
N N<
20 N
70
Pluton no
. 3E
9F
R2
78
9F
R2
80
OF
R2
45
2A
OF
R2452B
OF
R2
A5
7A
OF
R3035
OF
R3
03
5A
OF
R3
03
6A
OF
R3044A
OF
R3046
OF
R3
04
7O
FR
30
66
OF
R3067A
OF
R3068A
OF
R297
1.5
01
0.0
02
.00
3.0
03
.00
2.0
02
.00
3.0
02
.00
3.0
0
3.0
02
.00
3.0
01
.50
3.0
0
.07
1.5
0.7
0.1
5.7
0
.50
.50
.70
.20
.70
.70
.70
.15
.07
1.0
0
.50
1 .5
0.7
01
.50
1 .0
0
.70
.70
.20
<.0
51
.00
1.5
01
.00
.50
.30
1 .5
0
.15
0.5
00
.20
0.
10
0.2
00
.20
0.2
00
.30
0.2
00
.30
0
.30
0.2
00
. 1
00
.03
0.3
00
1 50
700
300
50
0700
700
50
03
00
150
70
0
1,0
00
700
50
0300
70
0
N N N N N N N N<
.5<
.5 N N N N N
N N N N N N N N N N N N N N N
00 N N20
00 N
300
>2,0
00 20
00 10 N
30 10 1 5
300
30
03
00
1 ,0
00
70
0
30
03
00
30
0150
50
0
70
03
00
1 ,0
00
1,0
00
70
0
3.0
1 .0
3.0
1 .0
1 .5
5 .0
7.0
3.0
3.0
2.0
2.0
3.0
1 .5
1 .5
5 .0
N N<1
0 N N N N N N N N N N N N
N10 N N N N N N
<5 <5 <5N
<5 <5 <s
<5
10
10 10
00
00 10
00 1
510
10 1 0
10
1 0
10
5<
5150 50
50 5n 50
50
50
50
30 20
50
70
50
50 N
30 30 20
<20 n
?0
07
020
50
?0
<2
0<
20 30
Table 3.--Semi-quantitative spectrographic analyses of Mesozoic granitic rocks of Eagle quadrangle/
A I aska--conti
samp I
eS-MO
S-NB
S-NI
S-P8
S-SB
S-SC
S-SN
S-SR
s-v
s-w
S-Y
S-ZN
S-ZR
AA-AU-P
OFR2437
OFR322
OFR323.A
OWR64
OWR100
OWR101
OWR102
OWR1 1
7OWR1 1
8OWR43E
1FR100
1 FR103
1 FR106A
1 FR106B
1 FR11 1
A
1 FR
1 1 18
1WR81
1WR83
1 WR84B
1WR87
1WR88
1FR21O
1 FR183
1 FR186
1 FR794
N N N N N
<5 <5N N 20 N N N 5 N
<5 <5 <5N N
<5N N N
<5
10 15 10 10 1 5
15 15 10 10 10
00 10
<10
<10
<10
<10 10
00
0000 1000
00 10 10
<55
<5 10 5
<5 <5 <5 10 <5 <5<5 5 5<5 507 7 7 5
<5 30 5
<5 50
70
100
300 70
500
70
150
100 15
700
70 50 70 15 70 15 70 70 70 70 70 50 70
100 30
N N N N N N N N N N N N N100 N N N N N N N N N N N
15 15 <5 15N
15 15 15 107
15 155
<55
30 15 15 15 10 157 7 N
20
00
00 30 N
15
>1 ,000
150
1/000 30 70 N N N N N N N N
00
00
00 N N10 N
300
5no
<100
500
<100
000
<100
000
<100
200
300
300
<100
000
?00
500
300
700
000
000
100
150
300
000
150
100
150 30
1 50 20 70
100
100 70 30
150
150 30 30
30
200
150
1 50
100 70 15 50 70
<10
300
N N N N N N N N N70 N N
<50 N N N N N N N
<50 N N N N
20 20 50 20
100
20 70 20 10
10 20
30 1 5 N
15 30 20 30 30 1 5
30N
20 20 30
N N N N N
<200 N N N N N' N N N N N N N N
<200 N N N N N
200
300
150
300
150
100
300
500 70
30
150
300
200 70
150
1 50
200
200
1 50 70
300 70
200 70
300
<.02
<.02
<.o?
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
Pluton no.
3E
9FR278
9FR280
OFR2452A
OFR2452B
OFR2457A
OFR3035
OFR3035A
OFR3036A
OFR3044A
OFR3046
OFR3047
OFR3066
OFR3067A
OFR3068A
OFR297
N N N N N N N N N N N N N N N
000000
0000
000000 20
00
00
000000
00
7 7 7 5 5
<5 <5 5 5 5 5 5 5<55
20 15 70 50 70
70 70 70 20
70 70 70 70 70
100
N N N N N N N N N N N N N N N
N 7 5 7 7
<55
105
10 107 5
<5 10
N N1
510
1 5
00 1 5
1 5
1 5
10 10
00 N N10
000
150
200
300
200
200
200
150
000
300
500
300
200
mo
300
15100 503030 30 30 70
30 70 50 50 20 30 70
N N N N N N N N N N N N N N N
30 1 5
<1 0 30 1 5
10 10 50 50 1 5
20
1 5
20
20 20
N N N N N N N N N N N N N N N
10070
150
150
150
1 50
1 50
1 50
300
150
150
1 50
1 50 70
?00
<.D2
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.n?
<.02
<.02
<.o?
<.o?
Table ?.--Semi-auantitative soectrographic analyses of
Mesozoic granitic rocks nf
F ,1 q
I e au
arir
anal
p, Alaska--continued
sampl e
OFR298
OFR302
OFR307
OFR310
OFR402
OFR403
OFR404
OFR434
OFR460
OFR461
OFR462B
OFR462C
OFR464B
OFR465
OFR467
OFR46AC
OFR2524
OFR3128
OFR31 1
2OFR430
OWR156B
1 FR177A
1 FR200
1 FR201
1FR205A
1 FR743
1 FR745
1 FR76A
1 FR766B
1 FR767B
1 FR767C
1FR769
S-FEX
2.00
1 5.00
3.00
3.00
3.00
3.00
2.00
2.00
3.00
3.00
3.00
3.00
1.50
3.00
7.00
.70
3.00
3.00
5.00
3.00
1.50
7.00
3.00
5.00
7.00
5.00
3.00
3.00
2.00
3.00
2.00
1.50
S - M G X
.30
7.00
1 .5
01 .00
.50
.70
.30
. 30
.70
.70
.70
.70
.1 5
.70
2.00
.1 5
.50
1 .00
1 . 50
.70
.30
3.00
1 .00
1.50
1.50
.70
.70
.70
.05
.30
.30
<.02
S - C A X
.70
10.00
1 .5
01 .50
.70
1.00
.70
.50
.70
1.00
.70
.70
.30
.70
2.00
.50
.50
1.00
7.00
1.00
.50
1.50
1 .50
1.50
3.00
1.00
.70
1 .00
.20
.30
.30
.05
S-TIX
. 150
1 .000
.300
.200
.200
.300
.150
.200
.200
.200
.200
.150
.100
.200
1 .000
.070
.300
.300
.500
. 300
.150
.500
.200
.300
.700
.300
.300
. 30
0.100
.150
.100
.150
5-MN
700
5,000
700
1,000
300
500
700
500
700
500
500
500 30
300
1,000 30
500
500
500
700
150
1,500
700
1 ,000
1,500
700
700
300
300
300
500 30
S-AG
N N N<
. 5
N N N N N N N N N N N N< .5 N N N N N N N N N N N N N N N
S- AS
N N N N N
<200 N N N N N
<200
<200 N N N N N N N N N N N N N N N N N N N
S-8
150 1 5
100
150 N
00 1 5
< 1 0 N N N N N N
00 N
<1 0
00 70N
00 1 5 N
< 1 0
10
00 10 1000
>2,000
<10
O 0
S-RA
700
1,500
5no
700
500
500
300
500
300
700
500
300
700
700
700
700
300
700
300
700
1,500
1 ,500
1,000
1,500
1,000
1,500
1, 500
700 70
700
700
150
S-PF
1 .5 N
5 .0
3.0
3.0
3.0
2 .0
1 .5
3.0
3.0
3.0
3.0
1 .5
3.0
1 .0
1 .5
<1 .0
1.5
1 .5
3.0
N1 .0
3.0
2.0
1 .5
1 . 5
2 .0
3 .0
7.0
1 .5
3.0
3.0
S-BI N N N N N
<1 0 N
<1 0 N
<10 N
<1 0
<1 0 N N N N N N N N N00
<1 0 N N N N N
20N N
s-co
<5 30 <5 N N
<5M N
<5 <5
N N N N 15 <5 <5N 5 N N
15 515 15 N N N N N N N
S-CR
1 0
30 20 1 5
00
00O 0
00
0000 10 10O 0 10O 0
<1 0
oo
< 1 0 30 10
00 70 1 5
30 10
0000 1 5 N N N N
s-cu
70
100
10070
20
7020
70
1 5
50 50
20
20 70 1 5
30 <57
<5 <5 <5 70
100
70
70 <5 <5 <55
<5 <5 <5
S-L A
30
<?n ?o ?o 20 30 2n 50 ?n 30 20 20 ?0
<?0 30
<20
100
<20 N50
N?0 30 20 50
<20
< ?0
<20
100 50 20 30
Pluton no.
3F
OF
R3
73
OF
R4
37
AO
FR
43
7B
0 F
R 4
3 8
AO
FR
53
8O
FR
58
1
OF
R3078
OF
R3080B
5.0
03
.00
.30
5.0
05
.00
1 5
.00
7.0
0.3
0
1 .5
01.5
0<
.02
1.0
01
.50
3.0
0
1.5
0.1
0
1.5
01
.50
.30
1.5
02
.00
3.0
0
1.5
03
.00
.70
0.3
00
.02
0.3
00
.30
0.7
00
.30
0.0
20
1,5
00
700
150
700
1,0
00
2,0
00
1 0
07
0
N N N N N N N N
N N N N N N N N
10 N
150
000 10 ?0
20
1,5
00
50
0 501
50
700
1,0
00
700
150
3.0
1 .5
3.0
1 .0
1 .5
1 .0
3.0
5.0
N N<1
0 N N N N N
5<
5 N10
N
10
10 <5
1 0
00
00 1
50
0 15 70
00
150 50
70
1 5
<5 5
< 5
<5
7T 30
<?
0<
20
1 50
<20 70N
Table
3.--Semi-quantitative spectrograohic analyses of Mesozoic granitic ro
cks
of Ea
gle
quadrangle/
A I aska--continued
samp
I e
S-MO
S-NB
S-NI
S-PR
S-SB
S-SC
S-SN
S-SR
S-V
S-W
S-Y
S-ZN
S-ZR
AA-AU-P
OFR298
OFR302
OFR307
OFR310
OFR402
OFR403
OFR404
OFR434
OFR460
OFR461
OFR462B
OFR462C
OFRA6AB
OFR465
OFR467
OFRA6AC
OFR2524
OFR31 28
OFR3
11 2
OFR430
OWR1
56f
l1 FR177A
1FR200
1FR201
1 FR205A
1 FR743
1 FR745
1FR764
1 FR766B
1 FR767B
1 FR767C
1FR769
N<5 N N N N N N N N N N N N N
<5N N N N N
<5N N N N N N
<5 N N<5
<10
<1 0
<10 10
<10
<10
<10 1 5
10<10
<10
<10
<10
<10 1 5
10 15<1 0
<10 10
<10 10
00
<10 10
<10
<10
oo 30
0000 20
51 5 105 5 5 5 5
<55 5 7 5 5 5
<5 <5 <5 1 5 5
5015
0 5 7<5 <5 <57
<5 <5 <5 <5
70 30 150
150 70 70 70 70 50 70 70 70 30 70 15 30 70 30 70 50 70 50 70 70 70 30 70 70 70 30 70 70
N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
<5 505
<55 7 5 N 5 5 5 5 N 5
1 5 N
<5 10 105
<5 30 1 5
20 30
7 5 7 N
<5 <5 N
1 5 N
1 5
1 5
10 N30 1
5 N<10
00 1 5
<10
<10 N
1 5
000000 10
10 N
00 N N N
<1 n0 0 20
00
00 1 5
200
700
300
300
300
300
200
300
2QO
300
300
300
?00
300
SOO
200
1 50
300
?00
500
200
300
300
500
500
1 50
150
200
000
1 50
100
000
30500 30 30 30 70 30 30 50 50 30 70 30 50
200 30 20 70 70 50 30
200 70
100
150 70 30 50 10 1 5
15 10
N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
1 5
50 1 5
1 5
10 1 5
1 5
1 5
1 0
10 1 5
10 1 5
10 1 5
1 5
10 1 5
1 5
10 10 20 20 20 30 1 5
10 10 70 30 10 30
N N N N N N N N N N N N N N N N N N N N N<200 N N N N N N
<200 N N
<200
100
1 50
1 50
1 50
150
1 50 70
1 50
200
1 50
1 50
150
150
?00
300
150
300
1 50
200
200 50
1 50
200
150
300
150
1 50
150
200
mo
100
?00
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.o?
<.02
<.02
<.o?
<.02
<.02
<.o?
<.02
<.02
<.02
<.02
<.02
<.02
<.n?
<.02
<.02
<.02
<.o?
<.02
<.H2
<.o?
<.o?
Pluton no
. 3F
OFR373
OFR437A
OFR437B
OFR438A
OFR538
OFR581
OFR3078
OFR3080B
N N N N N<5 <5N
1 5
10000000 10 20 15
5<5 <57 5
<5 305
70 50 70 15 50 50 50 20
N N N N N N N N
15 15N
1 5
10 20 15N
1 5
10N N N N
1 5 N
500
300
000
300
300
500
300
300
701 50 30
1 50
1 50
1 50
150 20
N N N N N N N N
30
20
20
1030
?0 30 20
N N N N N<200 N N
500
1 50 50
150
150
500
200 ?0
<. 02
<.02
<.02
<.n?
<.o?
<.02
<.n?
<.0?
Table 3.--Semi-quantitative spectrographic analyses of Mesozoic granitic rocks of Eagle quadrangle*
A I aska--continued
samp Ie
S-FEX
S-MG%
S-CA%
S-TI%
S-MN
9FR848
9FR51B
9 f R 5
' 9FR55
9FR56A
9FR57
9FR59
9FR62
9FR63
9FR64A
9FR64D
9FR66A
9FR70
9FR72A
9FR728
9FR72C
9FR80A
9FR808
9FR81
9FR82
9FR84A
9FR84D
9FR86
9FR86C
9FR86E
9FR89
9FR91 A
9FR91B
9FR95
9FR95A
9F
R9
79W
R42
9W
R4
5A
9W
R4
89W
R50
1.5
07.0
07.0
01.5
0
.50
.70
3.0
05.0
03.0
0
1.5
010.0
02.0
01.5
03.0
0
3.0
015
.00
2.0
03.0
03.0
0
10.0
03.0
0.3
0.7
02.0
0
3.0
02.0
03.0
03.0
03.0
0
1.0
0.7
0.7
01.
50.7
0
1.0
015.0
03.0
02.0
03.0
0
.20
1 .5
01.5
0.3
0
.05
.1 5
.70
1 .5
0.7
0
.20
3.0
0.7
0.7
01 .0
0
1 .5
03.0
01
.00
1.0
01
.50
3.0
0.2
0.0
2.0
5.1
5
1.5
0.7
0.7
0.7
0.7
0
.07
.07
.07
.30
.02
.07
.02
.50
.30
.70
.50
1 .5
0.7
0.3
0
.20
<.05
1 .50
2.00
.70
.70
3.00
1.50
1.00
1.50
1 .5
05.00
1 .0
01 .5
02.00
2.00
.70
.15
.20
.70
1.50
1.00
1 .50
.70
.70
.15
.15
.20
.50
.07
.15
<.05
.70
.70
.30
.1 50
.700
.700
.1 50
.020
.150
.300
. 500
.150
.100
. 70
0.300
.200
. 500
.500
1.000
.1 50
.500
.300
.700
.150
.030
.030
.200
.300
.200
.300
.300
.300
. 100
.030
.030
.100
.020
.030
.100
.200
.?00
.200
200
1 ,000
500
20P
150 50
700
1,500
500
150
1,000
500
300
700
300
1,500
300
500
700
1,000
500
100
150
300
500
500
1,000
700
500
100 70
100
300
300
300
700
200
500
300
-AG
N N N N
P
N N N .5 .5 >5 N N . 5
N N .5 N N N N N N N N N N : .5
: .5
:.5 N N N N N N N N : .5
).0
S-A
S
N N N N
I u
t o
n
no.
N N N N N N N N N2,0
00 N N N N N N N N N N N N N N N N N N N N N N N N N
S-B
N
<1 0
< 1
030
3G
N1 ,5
00 N
<1 0 10 10
< 1
0 N N N N<
1 0 N N
<1
0
<1
0 N
20 N N N N N N N N N N N N N
1 0 N N
30
S-8
A
70
01
,00
03
00
300 50
300
1 ,0
00
300
30
0
300
300
70
01
,50
01
,50
0
70
01
50
1,0
00
70
07
00
30
01
,50
01
,50
0150
1,0
00
500
70
07
00
2,0
00
1,5
00
50
03
00
300
1,5
00
15
0
300
70
01,0
00
70
02
,00
0
S-B
f
3.0
1 .5
1 .5
7.0
1 .0
1 .5
1 .5
2.0
1 .5 N
<1 .0
1 .5
2.0
1 .0
<1 .0
1.5
1 .5
<1 .
0<1
.0
<1 .
02.0
1 .0
1 .5
1 .5
1 .5
1 .5
1 .0
<1 .
01
.0
1 .0
1 .5
1 .0
1 .5
1 .5
1 .5
5.0
1 .0
1 .5
1 .5
S-8
A
70
01
,00
03
00
300
S-B
E
3.0
1 .5
1 .5
7.0
S-8
I
<1
0 N N N
s-co N
15 30N
S-C
R N1
5100 1 5
S-C
U
70
70
70 50
- S
-LA
70 7n 7D N
1 0 N N N N N N N N N N N N N N30 N N N N N N N N N N N N N N N N N N N N N N N
N15 30 N 5 N 510 N N20N N 5 5
305
15 1 5
20 <5N N N
15 <5N
<57
<5 <5N
<5N N N N N N
5 <
5 10
1 0
10 10
10
<
5
10
1 0
10
1 5
0
1 5
<5
10
30
<5
<5 <5
<5
150
<5
< >
<5 1 0
<5 <5
10
<
5 <
5 <5
<5
<5
<5
<5
1 0 5
<5
150
300 N
<5
<
5
10 5
20700
<5 5
<5 7
<5
<5
<5
<5
<5
<5 205
30
5<
5 <
5 <
5
<5
<5 1 0
?0 ?n
20 N
<20 20
50
<
20
2n
20
N
70N N
50 ?0
N N N N N N sn
?o N
50
Table 3.--Semi-Quantitative snectrogranhic analyses of Meso/oic granitic rocks of Eagle quadrangle/ Alaska--continueo
sample
1 F R
1 1
/.1 FR1 1
71FR121
1FR123
5 -MO
N<5 <5N
S-N13
<10 10 10 1 5
S-N
I
<55
307
S-PO
70 30 30 10
S-SB
N N N N
s-sc <5 20 20 15
S-SN
N N N50
S-SR
150
700
<1GO
000
s-v 1 5
200
200 50
S-W
NJ N N N
S-Y N
3C 30 20
S-ZN N W N N
S-Z R
100
200
300 30
AA- AU-P
<. n?
<. 0?
< . 0?
<.02
3G
9F R848
9FR51 B
9 F R 5
'.9F
R55
9FR56A
9FR57
9FR59
9FR62
9 F R 6 3
9FR64A
9 F R 6
/. 0
9 F R 6
(> A
9FR70
9FR72A
9FR72B
9FR72C
9FRQOA
9FR80B
9 FR81
9FR82
9FR8*. A
9 F R 8 4 0
9 F R 8 6
9FR86C
9FR86E
9FR89
9 F R 9
1 A
9FR91 B
9FR95
9FR95A
9FR97
9 W R
/, 2
9WR45A
9WR48
9WR50
N<5 N<5 N N
<5 N N N N<5N N N N N N N N N N N N N N N N N N N
15 70N
20
10 30 10 10<10
<10 1 0 10 1 0
<10
<10 30 10
<10
00
<10 30
<10 30 30 10
<10
<10 10 10 30 50 20
<10 10 10 10 1C
00 10
5 5 5<5N N N
<5 <55 5
70 107 5
205
10 <55
50 <5 <57 7 5 5 5 5 5 5 N
<5 <55
20N
1 5
30 30 1 5
1 5
30 30 30
0000 30 10 10 15 10 1 5
20 10 1 5
30 15 50 70 10 1 5
00
00 30 30 1 5
00 15
1*000
N N N N N N N N N N N N N N N N N N N N N IM N N N N N N N N N N N N N
<55
1 5 157
<5 207 5
15 20 1 5 7
15 20 30 1 5
<5N 7
1 5 7
10 10 <5
N N N N10
7 7 7 71 5
N<10 N30N N N N N
00
N30N n N N N N N N N N
10 1 0
1 5
<10 N N
<1 0 1 5 N N N N
30
O 00 N
200
300
150
150
300
200
200
200
?00
1 SO
1 50
1 50
1 50
200
1 50N N
000
150
150
1 50
150
150
<100
000
000
100 N N N
ooo
100
1 50
on 10
100
1 50 30 1
5200 50 30 70
1 50
100 70
100
1 50
200 15 15 1 S
15 mn 30 50 70
1 00 1 5 1 5
15 20 15 1 5
20 20 20 50
N N N N N N N M N N N N N N N N N N N N N N N N N N N N N1
50
N N N N N
20 1 5
1 5
50 10 10 20 20 1 0
20 1 5
30 1 0
20
20 30 50 10 1 0
20 1 5
'1 5
1 5
1 5
20
100
00 1 0
1 0
30 30 50 20 1 S
30
N N N<200 N N
<200 N N N N N N N N N N N N N N N N N
<200 N N N N N N
200 N N
200
1 5
1 50 70
150 70 70 70
100
100
100 70
300
300 70
100 50
300 50
100
150
300 70 70
200
1 50 70 10 20 70 70 70
70 70
100 70
<,02
<.02
<.02
<.02
.08
<.C2
<.02
<. 02
<.02
<. 02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.o?
<.02
<.02
<.o?
<. 02
<.02
<.02
<.02
<.02
<.o?
<.o?
<.D2
Table 3.--Semi-quantitative soectrograoh4c analyses of Mesozoic granitic rocks of
Eagle quadrangle,
A I aska--continued
samp Ie
S-FEX
S-MGX
S-CAX
S - T
I'/.
S-MN
S-AG
S-AS
S-B
S-BA
S-0E
S-B I
S-CO
S-CR
S-CU
S-LA
9W
R50A
9W
R52
9W
R5
59W
R55A
9W
R5
7
9W
R5
89W
R60A
9WR
619
WR
65
9W
R66B
9W
R66C
9WR
7A9
WR
77
9W
R8
59W
R89
9WR
919W
R107
9WR
11 t
,9W
R1
24
9W
R139A
9F
R184A
9F
R204
OF
R2A
71
OF
R2477D
OF
R2
',79
A
OF
R2484
QF
R2491
OF
R5
25
AO
FR
52
5P
0 F
R 5
3 6
OF
R3090A
OF
R3091
OF
R3
09
2C
F R
3 1
8 6
OF
R31 8
9O
FR
61 1
CO
FR
25
02
OF
R2510
OF
R31 1
3A
OF
R3
1 1
5A
OF
R31 1
9O
FR
31
26
1 W
R266C
1 W
R2
62
R1
WR
265A
1 W
R269A
1 F
R S
6 6
D
3.0
01
.50
1.5
03.0
01
.00
1.5
03.0
07.0
07.0
05
. C
O
3.0
05
.00
10
.00
1.5
01
.50
1.5
01.5
03.0
05.0
0.3
0
3.0
03.0
02.0
03
.00
3.0
0
3.0
01
.00
. 50
3.0
05.0
0
3.0
05.0
05
.00
1 5
.00
10.0
07.0
01 5
.00
2.0
03
.00
<.0
53
.00
1.5
0
5.0
02.0
02.0
01
. 50
5.0
0
.50
.30
.50
.70
.05
.07
.10
1.5
0.5
0.7
0
.70
1.5
01.5
0.5
0.0
7
.07
.20
1.5
01
.00
.02
.70
.70
.50
.50
.50
1.0
0.1
5.0
7.7
01
.50
1.0
01.5
0.5
05.0
07.0
01
.50
7.0
0
.20
1.0
0.0
21
.00
.30
.70
.02
.30
.10
. 7
0
.10
.30
.70
.70
.07
.15
.70
1 .5
0.0
7.2
0
.50
3.0
01
.50
1 .0
0.0
7
.05
.10
.70
1.0
0<
.05
.70
1.5
0.7
01
.00
.50
1 .5
0<
.05
.07
.70
1 .0
0
1.0
01
.50
1 .0
07
.00
7.0
01
.50
7.0
0
.07
1.0
0<
.05
1 .5
0.7
0
1 .0
0.1
5.5
0.1
0.7
0
.20
0.
150
.15
0.3
00
.07
0
.03
0.1
00
. 700
.70
0.7
00
1300
. 5
00
.70
0.1
50
.10
0
.03
0.0
70
.70
0.
300
.01
5
.20
0.
30
0.
150
.20
0.2
00
.300
.07
0.0
15
. 300
.300
.30
0.3
00
.20
01
.000
.70
0.
30
01
.00
0
.15
0.
30
0.0
30
.30
0.3
00
. 3
00
.02
0.
15
0.0
70
. 300
1 5
02
00
70
0700 70
150
1/0
00
1,0
00
200
70
0
70
01/5
00
1/5
00
500
1 50
15
03
00
700
50
0 70
30
0700
70
03
00
30
0
700 70
10
0700
1/0
00
70
0700
700
200
3/0
00
70
01/5
00
50C
70
0 305
00
700
1/0
00
1 5
05
00 30
700
<.5 .5 .7
2.0 N N
<.5 N N N
1 .0 N N N N N N N N
<.5 N .5 N N N N N
<.5 N N N N N N N N
<.5 N N N N
<.5 N N N N N
N N N N N N N N N N N N N N N N N N N N N N N N N N N<
200 N
M N N N N N N rj N N
<2
00 N N N N N V M
30 N N N
30 N N N
30
10
00 10
1 5
10
00
00
N
30 N
10 N N N
10
30
00 1
50
0 30
00 1
50
00
0 15 1 5
10 10
30 N N N
2CO N
00 N
1 5
m
1/0
00
1/5
00
1/5
00
1 ,0
00
300
300
30
01
/50
03
00
700
30
01
/50
0700
70
01
/50
0
1/5
00
70
0700
700
30
0
1,5
00
50
0500
30
03
00
500
100 70
70
0700
50
07
00
1/0
00
i/ooo
1,0
00
300
70
0
15
0700 50
70
05
00
1/0
00 70
1/5
00
150
?n
n
1 .0
2.0
1 .0
1 .0
2.0
2.0
1 .5 N
1 .5
1 .0 N
1 .0
3.0
1 .5
1 .5
0 .
0<1
.0
1 .5
1 .0
<1 .
0 N0 .
0<1
.0
7.0
5.0
2.0
1 .0
3.0
3.0
3.0
7.0
1 .5
1 .5
1 .0
1 .5 N
1 .n
2.0
1 .5 N
1 .5
1 .5
2.0
2.0
1 .5
1 .
51
n
N N N<
10 N N N N N N N N
15 N N N N N N N N N
<10 N N N N N N N N N N N N N N N N N N N N N N N M
N N N N N N N 7 N<
5 5 7 N N<
5 N N<
5<
5 N N<
5 N N N N N N N<
5
<5
<5
<5
30
30
<5 30
<5 N N
<5 N 7 N N N
^t;
<5
<5
<5
<5
<5
<5
<5 20
1 5
1 5
15 10
10 10
10
<5 10
30
1 5
10
10
<5
10
00 10
10
00 10
10
oo 10 10
10
150
70
oo 50
10
on
00 10
oo N N N N
^ 1
n
10 7 5
<5
<5
<5
1 0
<5 5 5
50
0<
57
0<
5<
5
<5 5 5
<5
<5
<5
500
150
50
50
70
70 7
<5
<5 5 5 7
70
10
0<
51
5
<5
<5
1 5
1 5
<5
<5
< 5 5
<5
^ c
<2
0<
20
<20 20
<20
<20 N
20
<20 30 N N
<2
0<
20
<20 20 N
<20
<20 N
<20
<2
0 20 70 30 30N N
<2n
<?o 70
30
<2D
<2
0<
20
<20
15
0
<2
0 30 N
30
30
50 N N
70
s i r\
Table ?.--Semi-quantitative spectrograohic analyses of "lesozoic aranitic rocks of
Eaqle quadrangle/
A I as
k a--cont i
samp Ie
S-MO
S-NB
S-NI
S-S8
S-SC
S-SN
S-SR
s-v
S-W
S-Y
S-ZN
AA-AU-P
to
9WR50A
9WR52
9WR55
9WR55A
9WR57
9WR58
9WR60A
9WR61
9WR65
9WR66B
9WR66C
9WR74
9WR77
9WR85
9WR89
9WR91
9WR107
9WR11 4
9WR124
9WR1 39A
9FR18AA
9FR20A
OFR2471
OFR2477D
OFR2A79A
OFR248*
OFR2A91
OFR525A
OFR525B
OFR536
OFR3090A
OFR3091
OFR3092
OFR3186
OFR31P9
OFR61 1
COFR2502
OFR2510
OFR31 1
3A
OFR31 1
5A
OFR31 1
9OFR31 26
1 U R 2 6 6
C1 WR262R
1 WR2*5 A
1 WR269A
1 FR566P
N N N N N N N N N N
<5N
<5N N N N N N N N N N N N N N N N N N N N
<5 <5N
<5
N N N N N N<57 N N
O 0
00
<1 0 10 1 5
15 50 10 15 15 10 10 10
00 10
00oo 10
0000
0000 100000
00
000000 10 10 10 1 5
10 10 10
10 1000000000
00 1 5
1000 10
<5 N N<5N 5 5
<5 <5 <5
5<5N N
<5
N N1 5 N N N N 5 5 5 5 5
105 7 5 5 5
30 155
15 10 <5 <5 <5 <5
5<5 <57 5
30700
100
500 20 15 50 30 15 30
500 50 50 30 30 30 50 20 20 10 1 5
10 70 70 70
70 15N
70 70 70 70 500000 15 30 20 70N 50 50 15 50 20 10 50
N M N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
5 7 7107
<5 15 15 15 15 <5 107 7 N N 5
1 5 7
<5
5155
<55
10 <5N 5
15
710 10 30 30 1 5
30
510N
107 7
157
<5 m
1 5
300 0
oo
00 N3000 N
00 N
<1 0 30 N N N00 N N N N N00 1 5
1 5
10N N
00 N
OO N00 N N N N N
00 N N
00 10
00 N N
<1 0
150
1 00
1 50
100
000 N
200
150
000
100
000
300
1 50
150
100
100 N
1 50
200 N
200
1 50
200
000
200
300
000
000
300
300
300
?00
300
1 ,0
001*500
150
500
100
300
000
300
200
300 N
150
150
?on
30 20 15 20 15 10 101 50
1 50
100 50
150 70 30 15 15 1 5
100
100 10 30 70 30 30 30
70 30 30 30100 70 70 30
500
500
150
300 50 70 30 70 30 50 10 20 1 5
70
N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N M
1 5
1 5
20 20 30 30
50 1 5
10 1 5
10 20 20
30
50 10 10
1 5
1 5
30 1 5
1 5
1 5
50 20
1 5
00 N1 5
50
20 20 30 20 20
1 5
30
00 20
0 0 1 5
1 5
30 70 30N
?O
N N<200
300 N N N
<200
<200 N
<200
<200 N N N N N N N N N N N N N N N N N N
<200 N N N N N N N N
300 N N N N N N M
7070
70
300
200 70
150
1 50
150
150 70
100 70 50
300 70 70
500
100 50
150
150
150
1 50
150
200 70 20
1 50
300
150
200
100
150
150 70 70 50
200
00
300
100
1 50 70
100 30
1 C O
<. o?
<.02
< . 0?
<. 02
<.02
<.02
<. 0?
<.02
<.o?
<.02
<.02
<. 02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<. 02
<. 0?
<.02
<.02
<.02
<.02
<. 0?
<.02
<. 02
<. 0 ?
<. 0 ?
<. 0'
«- n
>
Table
3
.--S
em
i-q
ua
ntita
tive
sp
ectr
og
rap
hic
analy
ses
of
Me
so
zo
ic
gra
nitic
ro
cks
of
Ea
gle
quadra
ngle
/ A
t aska--
continued
sam
ple
S-F
EX
S-M
GX
S-A
GS
-AS
S-D
S-R
AS
-BE
S-B
IS
-CO
S-C
RS
-CU
S-L
A
to
1 F
R567B
1 F
R5
68
1 F
R5
69
1 F
R5
80
1 F
R583A
1F
R583B
1F
R5
85
1 F
R5
92
A1
FR
59
6C
1F
R6
28
1 F
R6
29
B1
FR
631
1 F
R6
35
1 F
R636A
1F
R6
36
B
1 F
R6
37
B1
FR
63
81
FR
63
91
FR
6A
O1
FR
65
8
1 F
R6
61
1F
R6
66
1 F
R6
68
A1
FR
66
8B
1 F
R6
68
C
5.0
01
.50
3.0
03
.00
1.5
0
3.0
02.0
07.0
07.0
02
.00
3.0
05.0
05
.00
7.0
05.0
0
1.5
03.0
01
.50
5.0
01
0.0
0
7.0
01
.00
1.5
01
.00
.70
1 .5
0.0
3.0
3.7
0.0
7
.05
.10
1.0
02.0
0.7
0
.10
1.
50
1 .0
01
.50
.50
.02
.15
.05
1 .0
01.0
0
1.5
0.0
7.0
7.1
5.0
7
1 .5
0.1
0.1
51
.00
.20
.15
.20
2.0
02
.00
.70
1 .0
01
.00
1.5
01
.00
.70
<.0
5.3
0.3
01 .5
01
.00
2.0
0<
.05
.05
<.0
5<
.05
.50
0.0
30
.07
0.2
00
.050
.070
.07
0.5
00
.30
0.1
50
.20
0.3
00
. 300
.50
0.3
00
.15
0.1
00
.070
.50
0.5
00
.70
0.1
00
.07
0.0
50
.15
0
700
200
1 50
70
0700 50
700
1/0
00
1/5
00
700
.
50
07
00
700
1/5
00
70
0 50700 70
70
0700
1/5
00 70
700
15 1 5
N N N N N N N N N N N N N3.0 N N N N N N N N
<.5
<.5
<.5
N N N N N N N N N N N N N N N N N N N N N N N N N
00 10
10
00 N
00
00 N
00 N
1 5
00
00 10
00 N
00 N
OO 30
00 50
10
30
0 30
70
0 701
50
700
500
30
0700
1/5
00
70
0700
50
07
00
700
200
1/5
00
15
01
/00
01
/50
05
00
70
0
1/0
00
1/5
00
1/5
00
70
0700
2 .0
3.0
3.0
1 .0
2.0
2.0
1 .5
1 .0
1 .0
1 .0
0 .
01
.01
.03.0
1 .0
0 .
01
.51
.51
.51
. 5
1 .0
1 .5
1 .0
1 .5
1 .5
N N N N N N N N N N N N N<
10 N N N N N N N N N N N
<5 <5 <5 N N N N
<5 10N N 7
<5
10N N
<5 N
<5 15 10N N N N
10 N N
00 N N N
00
00
00 N
00 N N N
0 0
00 N10
00
00 N N N
00
<5
<5
50
<5 N 7
<5 5
<5
<5
<5 N
<5
70 30
<5
20
<5
70 5 5
<5
<5
<5
<5
20N N
50 N N N
30 ?0
<2
0
<?0 sn 30
20
70 20
10
0<
?0 30 20
150 N N n N
1F
R6
80
1.5
0.5
0300
300
.0<
5
PIu
ton
n
o.
3H
1 FR704
9FR2080
9FR665
OFR2358
OFR263
OFR265A
OFR265B
OFR266
OFR41 5A
OFR41 5B
OFR605A
OFR605B
OFR620
OFR621
OFR624
3.00
1.00
7.00
7.00
10.00
3.00
7.00
3.00
1.50
2.00
1.00
3.00
.70
1 .0
03.00
.03
.20
1 .50
1. 50
7.00
.15
1.50
.20
.30
.30
.15
.70
. 1 5
.20
.70
.07
.20
2.00
3.00
7.00
.30
2.00
.10
.30
.50
.07
1 .00
.70
.70
1.50
.150
.050
.300
.500
>1.000
.150
.300
.070
.200
.150
.050
.200
.070
.100
.200
70200
1/500
1/500
2/000
300
1/500
700
300
300
300
1/000
1 50
300
700
N5.
0 N<.
5 N N N N N N N N N N N
N N N N N N N N<200
<200 N N N N N
10 N
00 10 20 70
00 30
150 N
10
00 10 10N
700
500
1/500
1/on
o300
100
1/500
150
300
300
mo 700
150
150
300
5.0
3.0
1 .5
1 . 5
0 .0
7.0
1 .5
15.0
3.0
3.0
1 .5
1 .5
5.0
7.0
3.0
N20N N N N N N N
<10 N N N N N
N N30 15 30N
<5 N N<5
<5 N N N N
N<5 20 30
700 10 20 10
0000 ?0 20
1 0
10 10
<5 20 1 5
7030 50 ion70 2n 70 5 5
<5 <5 ?0
30 N30N
20 70
N N<20 20 ?0 20N
<?n
<?0
Table 3.--Semi-quantitative spectroqraohic analyses of Mesozoic qranitic rocks of
Eagle quadranole/ Alaska--continued
n
samp I
e
1 FR567B
1 FR568
1 FR569
1FR580
1FR583A
1 F R 5 P 3 B
1FR585
1FR592A
1 FR576C
1 FR628
1 FR6P9B
1 FR631
1FR635
1 FR636A
1 FR636B
1FR637B
1 FR638
1 FR639
1 FR6AO
1 FR658
to Ul1FR661
1 FR666
1 FR668A
1 FR668B
1 FR668C
S-MO
N <5 N N N
<5N N N N N N N
<515
0 N<5N N N N N N N N
S-NB
S-NI
00
51 5
520
510
<5
O 0
<5
10
<5<1
0
<5O 0
< 5
10
5<
1 0
<5
O 0
<5O 0
<50 0
<5<1
0
<5<1 0
<5
00
<5,
<1 0
5<1
0
<5<1 0
<5<10
5
O 0
<5<1 0
<5O 0
<5<1
0
<5<10
<5
S-PB
30 70 70 30 30 15 50<1
0 30 50 20 20 30 70 30 10 50 30 20 20 30 30 30 30 15
S-SB
N N N N N N N N N N N N N N N N N N N N N N N N2/000
s-sc 10 10 107
<5 <5N
10 155 5
15 10 1 5
10
5<5 <5 15 15 15 <5N N N
S-SN
00 10 10O 0 10 10 on N N N N M
<1 0 1 5
00 NO 0 N N N N N
O 0 N N
S-SR
200
<100
000
300
ono
000
<ion 300
1 50
150
0 00
POO
200
150
1 50
200
1 50
100
300
200
300
000
100
100
000
s-v
1 50 1 5
10 70 10 10 in ?n1 50 50 70
100
100
150 70 30 1 5
1015
0200
200 1 5
1 5
1 5
20
s-w N N N N N n N N N N N N N<50 N N N N N N N N N N N
S-Y
?n 30 70 30 20 30 30 1 5
20 1 5
10 20 30 20 15 30 30 1 5
20 30
20 1 5
20 1 5
10
S-ZN
N N N N N N N N N N N N N<200
300 N N N N N N N N N N
S-ZR
150 70 me
200 50
100 70 3on
POO
100 50
200
1 50
300
150 70
150 70
100
1 50
100 50
100 70 70
A A-
AU-
<.o?
<. 0?
< . 0
?<.
np
< . o
p
<. np
<. 0?
<. 0?
<. 0 ?
<.02
<.OP
<.02
<. 0 ?
<.02
<.02
<.o?
<.02
<.02
<. 0?
<.02
<.02
<.02
<.02
<.02
<.o?
1 FR680
N00
<5N
N<5
N10
030
N<10
N<10
<.02
Pluton no
. 3H
1FR70A
9FR2080
9FR665
OFR2358
OFR263
OFR265A
OFR265B
OFR266
OFR41 5A
OFRU5B
OFR605 A
OFR605B
OFR620
OFR621
OFR62A
<5N
<5N
<55
<5 <5 N N N N N N N
30 10 10 10 15 30 10 7000
00
00oo 10 10 10
<57
1 5
1 5
150 N
105
<5 <5
7<57 7 5
50200 15 70 20 70 70
100 70 70 50 70 70
150 70
N N N N N N N N N N N N N N N
N 515 ?0 30N
20N N 5
<5 10 <5N
10
00 N N N N20
00 50
00
<10 N
0 0 1 5
1 5
0 0
<100
100
1 ,000
300
500
<100
?00
ooo
150
200
<ion 300
150
1 50
200
10 1015
01 50
POO 20
1 50 20 30 30 20 30 20 20 50
N N N N N N N N N N N N N N N
30 50 20 50 20
100 30 30 10 10 10 1 5
1 5
1 5
1 5
N N N<200
<200
<200 N
<200 N N N N N N N
500
100
150
300
1 50
300
300
300 70
1 50 ?0
200 70 70
1 50
<.o?
<.02
<.02
<.02
<. 0?
<.02
<.o?
<. 02
<.o?
<.02
<.o?
<. OP
<. o?
<. OP
<.OP
Table
3. S
em
i-Q
uantita
tive
SO
P c
t r
og
r a
oh
i c
analy
ses
of
*eso*oic
granitic
ro
cks
of
quadra
nqle
/ A U
s k
a-
- c
on
t i
sam
p I
eS -
F E
'/.S
-MG
XS
-CA
XS -
T I
XS
-AG
S-A
SS
-PS
-PA
S-B
E
1W
R3
07
1F
R5
A3
2.0
0
3.0
0
1 .0
0
1 .0
0
.30
1.5
0
8FR10A
8CS6
8CS11
8FR16AD1
9FR808
9WR22
1FR501 A
1FR501 C
1 FR506
1 FR507
1 FR509
1FR510
1FR1059
9FR856
9FR858
9WR30
1WR327
1WR333
1WR3A3A
1UR3A3B
1WR3A9
.70
3.00
5.00
1.50
2.00
3.00
15.00
1.50
15.00
10.00
5.00
7.00
5.00
5.00
2.00
7.00
15.00
5.00
5.00
>20.00
5.00
.07
1.50
1 .50
.70
.50
.70
7.00
.07
5.00
3.00
1.50
1.50
1.50
1 .00
.50
.70
3.00
1 .00
.70
.07
1.50
.05
2.00
3.00
.07
1.00
.70
7.00
.10
5.00
1.50
1 .50
1 .5
01.50
1.00
1.00
1.50
10.00
1 .50
.30
.05
1.00
. 3
00
.30
0.3
00
.200
.500
.150
. 300
.03
0.2
00
.300
.150
.200
.300
.700
.030
.70
0
.70
0.3
00
.50
0.5
00
.50
0.2
00
.30
0.7
00
.300
.500
.500
.50
0
70
07
00
70
03
00
1/5
00
300
70
0
5,0
00
50
07
00
15
01
50
30
02
,00
02
00
2,0
00
1,5
00
1,0
00
1,0
00
1,0
00
15
0500
70
02,0
00
70
0
30
05
00
70
0
N<
.5<
.5 N N N N
3.0
<.5
<.5 .7 N N N
<.5
<.5 N
1 .0 N N N N N N N
<.5
50
0.0 N
N
<1
0N
<
10
N
<10
n N
N
<1
0
N <
1 0
Plu
ton
no
. A
N
<1
0
Plu
ton
n
o.
5
N
<1
0N
N
N
<10
N
70
N
N
N
NN
<
10
N
<10
N
<1 0
N
<1
0N
1
0N
<
10
N
<1
0
Plu
ton
no
. 6
N
NN
N
N
N
N <
1 0
N
<1
0
N
<1
0
<2
00
<
10
N
<1
0
1 , n
nn 7,no
5HO
1 /o
np
1 /5
PO
1/
50
0
700
70
01,5
00
1,0
00
15
01,0
00
700
70
01
00
1,5
00
1,0
00
3,0
00
1,5
00
1,5
00
1,0
00
70
01
,50
0 30
70
0
1,5
00 70
1,5
00
1 .
51
.05
.0 N3
.0
1 .5
5.0
1 .0
1 .
51
.03
.01
.5
<1 .0 N
1 .5
1 .0
1 .0
1 .5
<1 .
0<
1 .0
2.0
2.0
1 .5 N
<1
.0
1 .5
1.0
1 .5
S-P
Is-
co
<5
<5
<S N
1 5
<5
N N N N N N N N N N N N N N N N N N N N N
N15 30 <55 7
70 N
70 307
10 15
5 5 7 30 15 <5 15N
S-
CR
<10
00
<1
0
<10
15
0
70
10
s-cu <5
< 5 5
<5
10
<5
S-L
A
70
?00
50
30
50
30 50 1 5
15 10 <5150 N
150
200 20
<10 20
20 10 301 50
<10 50 30 30
<5 70 30
30 1 0
<5 5 N70
100 705
50
1 0
1 0
<5 <5 10
150
3/000 <5
N30 30 20 50 N N H30 70
?0 30N
50
100 20 N30
N N5H
Table 3.--Semi-quantitative spectrographic analyses of
Mesozoic granitic rocks of
Eagl? quadrangle* Alaska--continued
sample
OWR130
OWR1 34
OWR141
1 FR848
1 FR852
1WR307
S-MO
N N N N<5
N
S-NB
10 10
<1 0
<1 0 10
<10
S-NI
<55 7 N
50 30
S-PP
30 70 70 30 50 50
S-SB
N N N N N fj
s-sc 30 10 105
50
7
S-SN N10 10N N N
S-SR
100
200
700
TOO
1,000
150
S-V
ISO 50 70 10
?00 70
S-W
i\) N N N N N
S-Y
30 70 30 1 5
30 15
S-ZN
N N N N<200 N
S-ZR
1 SO
TOO
200
300
150
100
A A- AU
<.02
<. 0 7
<.02
<. 02
<.02
<.02
1FR543
1070
7015
200
<.02
8FR104
8CS6
8CS11
8FR164D1
9FR808
9WR22
1 FR501 A
1FR501C
1 FR506
1 FR507
1 FR509
1FR510
1 FR1059
50 N N N N N<5 N<5 <5N
<5N
<10
N10
7<10
2015
7
10
5
1 5
N<1 0
10<1 0
<5<10
70
<10
50<
1 0
7<1 0
<5<
1 0
7
150 20 20
300 10 30 15 50 10 20 50 30
<10
N N N N N N N N N N N N N
N1 5
15
<55
10 70 <5 50 30 10 15 15
N1 5 N N N N N
<1 0 N N N N N
1 50
700
700
<100
500
1 50
500
<100
1 ,500
700
1,500
200
700
< 1 0
150
100 30 20 50
500 10
500
500
150
150
200
N N N N N N N N N N N N N
<1 0 20
20
<1 0 10 15 30 30 30 30 15 20 1 5
N N N500 N N N N N N N N N
15150
100
150
100 70 70 70 70
150
150
200
100
.06
<.02
<.02
<.02
.90
<.02
<.02
<.o?
<.o?
<.02
<.02
<.02
<. 0?
9FR856
9FR858
9WR30
1WR327
1WR333
1UR343A
1WR343B
1 WR349
N N<5 <5N N
10 N
10 10 15
< 1 0
< 1 0
<1 0 10
<1 0
5 710
100 <5
5<5 <5
10 20 20 1 5
15 501,500 50
N N N N N N30
0 N
20 <5 15 507
15 20 20
N N N N N
1 5
20N
700
700
1,500
TOO
100
700
<100
700
ion 20
1 50
500
150
200
150
300
N N N N N N>1 0,000 N
20 10 20 30 10 10 10 20
N N N N N N3,000 N
1 5P
150 70 50
150
150 70
200
<.o?
<. 0?
<.02
<. 0 ?
<.02
<.o? . 25
< . 02
Table 3.--Semi-quan
titative spectroqraphic analyses of
Mesozoic granitic rocks of
Eagle quadranale,
A I aska--continued
sample
S-FEX
S-MGX
S-CAX
S-TIX
S-MN
S-AG
S-AS
S-8
S-BA
S-8E
Pluton no.
8 (No -J
ata
from Pluton no.
7)
S-B1
S-CO
S-CR
S-CU
S-LA
NJ oo
9F
R2
22
AO
FR
2A
12
AO
FR
2AA
AO
FR
25
51
OF
R276
1 F
R61
7
8C
S38
9F
R8
79
9F
R8
85
9F
R888
9F
R6
86
9F
R2
91
9F
RA
82
9F
R6
16
OF
R289
OF
R3
U6
A
3F
R3
21
8
3F
R7
33
A3
FR
73
38
3F
R733C
OF
R469
OF
R470
OF
R993
OF
R1
00
2
10
.00
7.0
015.0
010.0
01
.00
7.0
0
3.0
01
0.0
01
0.0
01
0.0
0
5.0
01
5.0
07.0
015.0
01
0.0
0
15
.00
2.0
0
3.0
03.0
02.0
0
3.0
03.0
07
.00
3.0
0
3.0
03.0
07.0
05.0
0.2
02.0
0
.70
2.0
02
.00
2.0
0
1.0
03.0
02
.00
7.0
03
.00
7.0
0
5.0
0
1.5
01
.50
1.0
0
1.0
0.7
01.5
01.5
0
3 320 7 2 2 2 5 1 3 2 3 1
10 10 2 1 1 2 3 5
>2
0
.00
.00
.00
.00
.20
.00
.15
.00
.00
.00
.50
.00
.00
.00
.50
.00
.00
.00
.50
.50
.00
.00
.00
.00
.500
.500
.70
0.7
00
.070
.30
0
.20
0.5
00
.20
0.5
00
. 300
.70
0.2
00
.50
0i.n
oo
1 .0
00
.10
0
.20
0.2
00
.20
0
.20
0.3
00
.50
0.1
50
1,5
00
1 ,5
00
2,0
00
1 ,5
00 70
1 ,5
00
50
01
,00
01 ,0
00
1,0
00
1,5
00
1,5
00
700
1 ,5
00
1,5
00
1,5
00
30
0
P 1 ut
on
no.
1 ,0
00
1 ,0
00
700
P 1 ut
on
no.
50
0700
1 ,5
00
3,0
00
N N N N N N N N N N N N N N N N N 12 N N N U N N N N
N N
<N N N N
«
Plu
ton
no
.
9
N N N N N N N N N N
Plu
ton
n
o.
10
N
(No
data
fr
om
N <
N N
(No
data
fr
om
N N N N
10
CIO 10 10
20
£1
0
c10 10
10
10
1 5
1 5
10
30 15 20
10
Plu
ton
c 1
01
0 10 Plu
ton
d 0 10
10
no
2,0
00
1,0
00
15
05
00
1,5
00
1,0
00
1,
50
01
,00
01,0
00
1 ,0
00
1,5
00
1,5
00
1 ,0
00
1,5
00
1,5
00
1,0
00
10
0
no
. 11
)
2,0
00
?,0
00
2,0
00
no
. 1
3)
30
0700
700
15
0
<1 .
01
.0<1
.0
1.0
<1 .
0<1
.0
1 .0
1 .5
1 .0
1.0
1 .0
<1 .
01
.01
.01
.5
1 .5
<1 .
0
1 .5
1 .5
1.5
<1 .
01.0
<1 .
0<1
.0
<5 10 15 20 10 50 20 50 30 30 20 15
1S
10
<5 70 50
100 1 5
1 50
POO
200 50
1 50
1 ,000 15 1 5
10 30
710
20 70 1 5
50 70
70
100 10 1 5
1 5
20 N N 7
<5
30 50 50 50 20 50 50 30 50
<20 20 30
?0
?0
N N ?o 20
Table 3.--Semi-quantitative sp
e c
t rograph i
c analyses of Mesozoic granitic rocks of Eaqlp qua-Jranq t e>
A I a
s k a--c ont i
HUP
S-MO
S-N8
S-NI
S-PH
9FR222A
OFR2A1 2A
OFR2AAA
OFR2551
OFR276
1 FR617
N N<5 <5N
<5
<1 0 10 10 15
<1 0
<1 0
30 15 30 10 <5 <5
<1 0 20 20
< 1 0 30 30
S-SD
S-SC
S-SN
S-SR
S-V
S-W
Pluton no.
8 (No data from Pluton no. 7)
S-Y
S-ZN
S-ZR
AA-AU-P
N N N N N N
20 15 70 30 N20
N N N N N N
500
1 ,50H
700
700
700
700
1 50
300
700
300 3^
200
N N N N N N
15 ?0 20 20<
1 0
1 S
<200 N
<200 N N N
100
100 30 70 70 20
<. n
?<.02
<. 02
<.D2
<.n?
<.02
NJ VO
8CS38
9FR879
9FR885
9FR888
9FR686
9FR291
9FR482
9FR616
OFR289
N N N N
<5 <5N
<5N
10 10 10 10 10 15 10 10 15
<5 1 5
15 15 20 50 20 505
15N
10 10 20 30 50 30 50
N N N N N N N N N
7
30 30 30 15 30200 30 20
N N N N N N N N N
300
700
700
1,000
300
1,000
700
1,000
700
50200
200
200
100
300
500
300
300
N N N N N N N N N
10
20 20 20 ?0 30 20 20 30
N N N N N N N<200 N
100 30 30 30
100
1SO 70 70
300
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
<.02
OFR3U6A
<510
5030
3015
0
3FR3218
3030
010
3020
200
3FR733A
3FR733B
3FR733C
<20
<20 N
15 15 20
15 15 10
20 20 15
100
100 50
OFRA69
OFRA70
OFR993
OFR1002
N N<5N
10
5 5 5<5
<55
157
1 5
30
70 70200 70
<.02
<.02
<.02
<.02