Department of the Interior
United States Geological Survey
Open File Report
No. 75"~ Wy
AUDIO-MAGNETOTELLURIC DATA LOG
FOR STEAMBOAT HILLS, NEVADA
by Carl L. Long and Robert H. Brigham
1975
This report is preliminary
and has not been edited
or reviewed for conformity
to Geological Survey standards.
STEAMBOAT
NEVADA 1975
f
U.S. ax)j/:oicAL SUJM-JY A.M.T. DATA JUG
pa = obccrvod apparent resistivity in ohm-metres
N = lumber of observations
Er = standard error in ohm-metres
- = no data
"NOTE" - Telluric lino orientation indicated with station nurrbers
14'
btcl.
No.
7.5
pa
52J_
10
75.
Er
1.2K
3.3K
7
5"
7
10.2K ilo.GK
7
77^
74>
12.1.
75.6
7
7
10
2.0,0 (9.
5-
21.7 15.1
3,0C1
pa
676
/,
N
6.7K
z/.f
^,7
a (27. /£/.
Er
C85
/O
pa
N
285
76
22,
5"
N
/
27
/I
7
7
Er
7o
26,0
pa
N
7
Er
f
7
VX
3R.I
.73 .63
pa
L^?53.
N
to
Er
pa
223, HB, //f,
ID
Er
/?
ID
£.19
HI.
5~
7
7,o
4
3
3
m,
Sbf?,
^2,7
22g.
-z.&&
2
-
5
f
pa
Er
3
?i)J &3I.
Er
N
1,63
7,3f /2-
pa
N
5"
y
251.
?//
N
245.
2,^2
5"
8
3&;i
2S&
££L
/O
52,1 34.4 56.7
2.
L
NEVADA
SZERMDCAT
1975
pa
N
Er
"NOTE"
Sla.
No.
=
=
=
-
7.5
. ..,.
observed an^urent resistivity in ohm-metres
nuiTiber of observations
standard error in ohm- metres
= no data
Telluric line orientation indicated with station numbers.
10
pa
Er
2.
27
76
285
1.2K
685
5"
Er
ID
//5T
102.
24,4
pa
2f.fi fl?. 7
N
9
ID
3.3K
6.7K
10.2K 18. 6K
12o^
2i
pa
N
14
25C-, ZZL.
7
£&
N
U.S. GTOtflGICAL SUKVKY
7
,2 A /A 9
. 1325:13/7.
7
7
13.4
23.3
5^.7 2S£
29.2
7
7
Er
4z -
1.87 Z/2
54£
pa
6,57 b-
N
**
H
Er
pa
?
MP/S3
T
£15
9 8
7
1.74 £.30
33.0 27,7
N
to
Er
IM
/I
1
ISA .2/3
117. MO,
28,3
f
10
5.51
5£.
pa
72,
N
Er
pa
N
Er
/
/2
lit,, 21.8
/£>
-73 >f
^?/ T
2£ 5ii,
/a.
12±
tl
27.
10
U2d
7M>
STEAMBOAT
NEVADA
U.S. CTOIOGICAL SUIo.CT A.M.T. DATA LOG
HILLS,
1975
pa
N
observed apparent resistivity in ohm-metres
number of observations
Er = standard error in ohm-metres
- = no data
"NOTE" - Telluric line orientation indicated with station numbers.
pT^EOLT" 'CY
Stal
No.
Q
7.5
pa
N
few
Z.I 3 l.lf
pa
7.BC, 6,72.
i,n
pa
S4S 1 of,
% IO
Er
pa
N
Er
UK
pa
N
Er
li^u pa
N
Er
12*1
10
.50
Er
N
lOto
3
7
pa
6
1.43
5,21
10
.51
43,3
27
76
285
'7'?
ll.k
/s.r
ID
&
1.2K
685
g'
3.3K
6 .7K
10. 2K }.8.6K
~~
/^*^
5T27 5/3
""
1,% i>IU i/iCf
6,5a 7,3f I ^i39
f 7 8
.69 A°{ ,63
7
6
/
- /,37 .^S
~ 1 3.// " /.76 7,0$
7 /
'
- .U6/ ./I
m
I '7 4
£?.& m,
33.5"
5"
<7
ID 7
7 /I
103. 39.6 723 /,^ 3^9 //.7 S5.0
33,0 31, t> 17,7 /^-,? ^,? /3,2? 23.C
(\ I'D // ^ <? (f
6
7-71 l.4b 3.70 2*7 ^/^ .66 ItiD
136. //6l /73 31,1 ?4t ^,7 146,. ^.^S1..
f 6- 5"
7 7 ? & /o
17,1 ion m 3.^^ 1,45 ?.^ V,l ^3,6
5£, 0 42.3to3 2.0.1 ^2, a 6'.7 57,? 234,
5"
5"
(, g- I) G 7
$
/S,6 I4H £,SZ /.^'4.51 l;5,f /f,? 71.1
^T
53,3 /S.4'
? 10 ^
/5'A 3,^3 /.&
65"^ 35.9 10.6 &"1'4
1
<o
/ £/^ /
1
-J "^ ' i
I
!
-t- r I r
XI X yy
r>C(^ ' "^
#,s
It,* ^^ 7.65
II
/<?
\\
Er
3,/f l.7o
/5,e<J pa llt><
131,
N
^
li
Er
!?&5 2,o<i'
N
14
17.2 13,?
Er
N
IQ**
1\£
10
;^
/ 7?
7^,6
//
&,5c>
1,9
_~
10
'
*24 .10
?f,7
/o
40.7
(o
3.2£' 3.01
.
-^
T
7
/ ^O 1 £- *7^
1,0?
f/,5"
10
ni
i
^
6/.0 7/,3 13,1 213,5
1
7
SO
/^ 11^r
- I .12.
- 1 7
.1(0
-
*Ql
.ol
i-
.03
I
04 J7 .37
/^ 7
.<7f
U.S. CnQIOGICAL 53UHVKY A.M.T. DATA LOG
STEAMBOAT
NEVADA
1975pa
= observed anvurcnt resistivity in ohm-metres
= number of observations
Er = standard error in ohm-metres
- = no data
"NOTE" - Telluric line orientation indicated with station nmrbers
N
Sta.
Ito.
7.5
10
27
14
pa
N
Er
5"
76
285
685
1.2K
3.3K
6.7K
242.
220,
S
10. 2K 18. GK
IO
4
/I
7
5"
iv
6
,/
6
If.
pa
136,
N
/-f
13
10
7
Er
pa
N
Er
/Ye,
271
A/, 3
$
Zlt,
pa
10
/I
Er
Er
35,
Ml
N
N
,/<9 1.31
to
(J
7
7/6
72,1 53,*?
7
5
/O
55 J
5"
I
8*7 yto /.? g
//.$
pa
25£_
N
Er
3.5"
pa
10
Er
pa
N
Er
/,23
23£
N
r
2S.7
7
10
.7o
23J3
pa
ff. 7?
/57 b
4,74 IM: -^
, ^5g,
ET
IO
5"
HI
UL.
5~ 5/5,
5/,f 2-^,8
IS &
/
S"
-
25.
- u
^,?2
5"
U.S. GEODXICAL SUIA/MY A.M.T. DATA IXX3
STEAMBOAT
)A
1975 pa
N
Er
"NOTE"
=
=
=
-
ob3erved apparent resistivity in ohm-metres
number of observations
standard error in ohm-metres
- = no data
Telluric line orientation indicated with station numbers.
[
'
7.5
NO.
I7»<>
pa
N
Er
/7ft>
pa
N
Er
Rus
pa
N
Er
ftf* Pa
H
N
Er
FPT^OTTFNfY
14
27
76
285
1C, 733 c/ /) * ) £7,7
5"
6
7
10
7
31.4- 32.34 3.4G 7/3 4n\
685
1.2K
pa
Er
pa
N
Er
Er
6.7X
-*
n.\
s~
4,o7 $c3
f1
hoi
,ai
&,0
f,2^>
-
74-3 ns ??.r 2f,8 36Z\ ~ .
5" V
/I
6
g
#.3 7.11 3,ol 2,g2 I.S4^f,9l 55.3 X5ii I3£,
fal
5~ 39. g t
II 4
£
7
<?
431 £& 7.43 a #3 Wi '3.7
/{,%. 137, IO(o< l?7r 148. 253. "36ft g*^
r i£ ID /o to ' 7 £ 5"
32.2 <?,/z> 15:4 727 /A3 //.?
//;?,
5S.4 32-4
f?.0 ^<9,Z 57,3
9 » 7 /o 6 /,
/ft* £.M 5.0 6,53 5,11 3.6
5*7 3£.? 37,4 5^.? 44,1 ?3,6
/£?- <$ ;<9
?
/i %
^o £"~/
nt,
^33 Z.26 20? 1,52 A?^
pa
71,0 31,8 23,6. 3 A 2 faL -%,7
2o«s
5"
N
f ?
6
f
7
Er
//.9 10,1 / ( <j<j 7.2^
?,?7
pa
26,9 IO /> rA?/ 7-^1?I.S' 7^7
2Sfii/
N
3.3K
#tf
^1 C/lv*
H
/^
10
.-
1
g
/3.2 2,53 7.^ .43 ,35 ' /,53
10. 2K .8.6K
(o
7
.33
«/7
74
\
/53 II?.. ^"3,1 57, Q
1
/
+
^
24.8 ?^f
3&, 33. S 2/J 40*
i
3
8
7
,95"
-73
6?,/
*^/ fc ^
g»
^
/,n
/
7,» ,^
5.^ /,^ £,oS
1
12 7
.27 .?6
/A/
r g
5
-
4"^,c> 7?.7 55:8
5"
7 7
5".2i.
^,.0"
/5; 3
i
7 .53
/76 l/.P J)"?c*c> i £"3 IK,
f
$ \o I
yf 1.2 1.38
U.S. QjQI/JGICAJ. SUKVI-rY A.M.T. DATA LOG
STEAMBOAT h
NEVADA
1975pa
N
Er
"NOTE"
Sta.
No.
=
=
=
-
observed apparent resistivity in ohm-metres
number of observations
standard error in ohm-metres
- = no data
Telluric line orientation indicated with station numbers
7.5
10
14
76
27
285
G85
1. 2K
pa
13
Er
1,61
pa
3.
II
13
N
Er
pa
%.?£>
.5?
.32
57
N
tf \I2*I
II
10
.24
3-57
ffl.
53a
/i
27
in
//a
10
525-
Er
Pa
10. 2K 13. 6K
I32< 4lB_
N
N
'. 7K
3.3K
,06
3
.06
3.7/
~
11,0
3?,
/z
ID
IV
I
Er
23 us
pa
N
Er
57
If2.
s_a
1,40
/I
57,6 23, /7,3
ID
ff
pa
N
Er
3,67
pa
N
Er
/3
II
6.58 2-53
14A
I7,o
7,
10
10
pa
N
Er
5~
37.3
262
5~
12.
/.97 .6.2
2/.S
IV
||
10
A36 1,43 3,28 1,02
Si.OS' I,
7- f
/o
.57
10
57,
ID
1,95 2.76
.S~o
17,7