440 0
4400
4400
440 0
4400
4400
4400
440 0
440 0
5000
5000
4400
440 0
5000
50 00
5000
4400
500 0
5000
4600
3400
50 00
3800
3400
2800
34 0 0
2200
2800
3200
2600
3200
4600
2800
5000
3200
5400
480 0
4400
32 00
2800
3000
3400
3200
3200
3000
3200
4800
520 0
4200
420 0
480 0
2800
3800
4400
4200
3000
58 00
440 0
3400
4000
260 0
34 0 0
3400
2200
2600
3200
5400
6000
4400
4200
3400
4000
3600
2800
4400
3200
320 0
2 800
420 0
4400
4600
2800
4200
5800
2800
480 0
3000
500 0
500 0
300 0
4600
4800
520 0
300 0
300 0
3200
3200
3200
2400
5200
240 0
2600
560 0
2800
2800
2600
2800
56 00
2600
26 0 0
2600
3400
5400
5400
2400
28 00
5600
2800
3400
280 0
2800
240 0
5400
340 0
3400
3400
3400
5400
2800
2800
520 0
5200
3200
520 0
5200
520 0
520 0
5200
3200
5200
30 00
280 0
3000
280 0
280 0
280 0
2800
30 00
2800
300 0
30 00
300 0
300 0
3000
3000
3000
3000
3000
300 0
3600
36 0 0
360 0
3600
360 0
3600
360 0
3000
3600
380 0
380 0
4000
3800
3 800
3800
3800
3800
4000
3800
3400
400 0
4000
4000
4000
4000
4000
3400
3400
400 0
3400
3400
4800
4800
480 0
3400
340 0
4800
3400
240 0
2400
2400
2400
240 0
2400
240 0
480 0
4800
2400
3800
4600
3800
4600
3800
380 0
38 00
3800
3800
4600
3800
4600
380 0
380 0
3800
4600
380 0
460 0
4600
4600
460 0
3600
3600
3600
3600
3600
4600
3600
360 0
420 0
4200
420 0
4200
3600
4200
360 0
3600
4200
420 0
4200
4200
420 0
4200
4200
42 0 0
42 0 0
4200
320 0
340 0
3400
3800
340 0
360 0
3200
3200
2 600
3200
3000
2600
3200
3200
320 0
2600
2600
2600
2600
2600
2600
2600
2600
260 0
40 0 0
3800
3800
4000
4000
3800
2600
400 0
4000
40 00
4000
4000
4000
3200
400 0
4000
4000
46 00
4600
2200
220 0
4400
2200
220 0
2200
£¤23 £¤74
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23
£¤23
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£¤74 £¤23
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£¤19£¤19
B IA H W Y 4 5 5
B IA H W Y 414
B LU E R ID G E PK W Y
B IA H W Y 5 07
PO S E Y B L A NT O N R D
BIA H W Y 413
B I A HW Y 434
S P R U CE FLAT S R D
CO O L S PR I NG S R D
B U F F C R E E K R D
C ATA W B A R DG
R O UN D TO P T R L
S C O T T S C R E E K R D
B IA H W Y 419
S U G A R LOA F R D
G IN G E R S N AP LN
FA LLS C IR
R O U G H BR AN CH RD
MEROY L N
TA H I M E K D R
B I A H W Y 45 3
C H A L E T HILL
B LA C K RO CK R D
A L L EN H E NS ON CIR
HOR N BU C KLE R D
DIL L S BR ANC H R D
P LO T T B A L S A M RD
FIELD MOU S E
W E S T RIDG E R D
A R N O L D H ILL
H E R R O N B R A N C H R D
E L D ERS R D
Y E LLOW
J ACK E T
B L U E W IN G C HU R C H R D
LA DDER -BA CK T R L
W A S H I N GTON C R E EK R D
W HIT E B IR C H
PAT R I OT DR
L E E S T
PL OT T B A LS A M R D
STAT E RD
1447
T R U C K W HE E L H O LL OW
S PA LD I N G DR
H A P P Y HO L LOW R D
W I L DC AT M TN R D
WALT ON D R
B U R C H RD
DUSTY LN
AL L E N S T
HIL LC R E S T S T
B IA HWY 40 9
H E N S N E S T TR L
N AT URA L TR L
K ITC H E N BR A N C H R D
N F OR K R D
B OOMER R D
C AS TL E W O OD LN
R E S E RVAT I O N R D
T H O R N H I L L DR
B L U E W I N G R D
P I CNIC
G A P
B U N N Y C OV E
HU C K LE B E R RY LN
HO SP ITAL R D
B IA HW Y 41 2
N BE TA R D
M O NT EI T H B R A N C H R D
B IA HWY 421
F IS H ER CR E E K R D
M IT CHE L L R D
W HAT A V IE W DR
OR C H A R D LN
DE AN J AY LEE R D
S E L L ERS R D
T HU N D E R S T R UCK R D
PA R K W AY DR
HE N R Y R D
S Q U A R E R O OT
H ID DEN V A L L EY R D
OLD 19 -23
N A N TA H A L A N A T I O N A L F O R E S T
N A N T A H A L A N AT I O N A L F O R E S T
N A N TAH A L A N AT I O N A L F O R E S T
N A N T A H A L A N AT IO N AL F O R E S T
N A N TAH A L A N AT I O N AL
F O R E S T
N or th F or k S cott C r eek
A l lens B ra n ch
O chr e H i l l C r e ek
J enk i n s C r eek
S cott C reek
S oco C r eek
N ar r ows C ove B r anch
B l a ck r ock C reek
W a shi ngton C r eek
B uff C reek
W est F or k C ampbell C r eek
D il l s C r eek
B ig W it c h C r eek
H or n buck l e C reek
S oco C r e ek
B l a ck r oc k C r e ek
H or n buck l e C r eek
F i sher C reek
S oco C r eek
H enr y C r eek
S c o tt C reek
S c o t t C r eek
E a s t F or k D i ck s C r eek
O pen B r a nch
C her r y O r cha r d B r an ch
R ough B r anch
S hut -in C reek
B i g B r an ch
I ndi an C reek
S oapstone C r eek
K i tc h en B r a nch
S oc o C r eek
E as t F or k D ic k s C reek
C ra n ber r y C r eek
N or th F or k S cott C r eek
M ontei th B r a nch
S co tt C r eek
C ope C ree k
H enry C reek
R ough B r a nch
P ol ec at B r an ch
D i l l s C r eek
B l an t on B r a nc h
P ar r i s B r anch
S o co C r eek
N or th F ork S cott C r eek
B uff C r eek
S cot t C r eek
F isher C reek
S o co C reek
B eta
F oster
F isher
C r eek
A ddie
W illits-
O chre
H ill
P res s C ove
L os t C ov e
Fed C ove
B la ck ro ck
M ou ntain
J on as
F ields
C a rver M ou ntain
B r ow ning
K n ob
S e tzer M ou ntain
P um p M o un ta in
Co pe
M o un ta in
J oe M o un ta in
Y e ll ow Fa ce
S heepba ck
M o un ta in
T h e
Pi nn a cle
Per ry
Top
R o ck y
Face
R o ck y
Face
Pi nn a cl e B al d
C am pb e ll
L ick
Wate rro ck K nob
P lo tt B a ls a m s
J e nkin s
R i dg e
G r een M o unta in
B ea r w a llow
R idge
W h iter ock
R idge
C r a nbe rry R idge
F ir e s c a ld
R idge
L icks ton e
R idg e
B lackro ck
R id ge
T hu nder s tr uck
R idge
B lackro ck R idg e
Ho rn buckle
Va ll e y
Over look
H a ll
O ut- O ff R idg e O v e rlo ok
Fed Cove
Overlook
S oco
Gap
Pa rking A r e a
Waterr ock K n ob O verloo k
Cr a nberry R idge O v erlo o k
Yello w-
Face
Overlook
T hu nders tr uck R idg e O verloo k
S hu t- In
G a p
S o co G ap
Ind ian Cam p
G a p
Wo lfp e n
G a p
S oco F al l s
Dills
Cem etery
N or m an-B lan ton
Cem e ter y
N or man
Cem e te ry
Dills Cem e ter y
Henry
Cem e te ry
Clay to n
Cem e te ry
S utton C e metery
K ee ner Cem e ter y H oy le
Cem e ter y
"
D ellwood
Greens
C reek
B unches
B a ld
H azelwood
S ylva
S outh
S ylva
North
Smokemont
Tuckasegee
Whittier
NO R T H
C A R O L INA
A D J O IN IN G 7. 5' QU A D R A N G L E S
Q U A D R A NG L E L O C A T IO N
T his ma p wa s pr oduced to conform with ver sion 0 . 5 . 1 0 of the
dr aft US G S S tanda r ds for 7 . 5 -M inute Q ua dr angle Ma ps.
A meta da ta file a ssociated with this pr oduct is dr a ft ver sion 0 . 5 . 1 2
C O N T O UR IN T E R V AL 4 0 F E E T
NO R T H AME R IC AN V E R T IC A L D AT UM O F 19 88
S C A L E 1 : 2 4 0 0 0
1 0.5 0
MILES
1
1000 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000
FEET
1000 500 0 METERS 1000 2000
1 0.5 0 KILOMETERS 1 2
S Y L V A N O R T H , N C
2 0 1 1
Imagery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N AIP , O ctober 20 09
R oads. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ©2 00 6-201 0 T ele Atlas
R oads within US F orest S ervice Lands. . . . . . . . . . . . . FS T opo Data
with limited Forest S ervice updates, 2 00 9
Names. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G N IS , 20 10
H ydrography. . . . . . . . . . . . . . . . . N ational H ydrography D ataset, 2 00 9
C ontours. . . . . . . . . . . . . . . . . . . . . . . . . . . . . N ational E levation D ataset, 20 08
U.S . N ational G rid
100,000-m S quare ID
Grid Zone De signation
KV LV
3 00
17S
UT M G R ID A ND 2 IC NO R T H
D E C L I NAT IO N AT C E NT E R O F S H E E T
1° 16´
23 MILS
5° 45´
102 M IL G N
M N
01 1 MA G NE T
S
R O A D C L A S S IF IC A T IO N
Interstate R oute S tate R oute
R amp 4WD
US R oute Local R oad
Interstate Route State Route US Route WX
. / «
10'
12'
30' 35°
8 3° 07'
770
30"
00 0
83°
35°
15'
FE E T
30" 10'
30'
27'
30"
E E T
00 0
35° 30"
2 5'
22'
60
30"
620
83
00
FE E
27'30
25'
35°22'30"
°15' 12'30" 83°07'
740 000 FE ET
F
6
0
T
North American Datum of 1983 (NAD83).
World Geodetic System of 1984 (WGS84).
Projection: Universal Transverse Mercator, Zone 17S
10 000-foot ticks: North Carolina Coordinate System of 1983
Topographic base produced by the United States Geological Survey.
Altered by the North Carolina Geological Survey for use with this map.
5
4
9
81
61
83
37
10
80
68
31
58
74
49
73
46
60
45
65
32
62
65
75
54
52
62 37
27
78
55
27
47
54
47 55
78
55
61
50
37
35
57
54
35
75
64
31
60
68
47
8
24
33
23 49
56
72
60
69
37
15
84
76
72
5
40
37
77
32
75
76 13
76
34
80
26
36 84 16
70
72
38
86
74
3
54
39
30 33
59
87
48
40
67
87
34
61
45
77
42
70 27
85
80
58
57
35
54
75
58
55
75
58
61
15 63
36
60
58
25
13
68
72
73
87
30
67
70
87
50
59
74
66
25
45
36
85
74 35
57
59
77
21
50 57 55
62
48
61
65
65 30
52
52
84
48
76
33
87
65 74
63
57
78
81
79 16
67
71 36
82 67
72
70
62 70
57
73
72
81
68
57
62
14
20 67
50 87
6 81
43
42
3 53
38
74
82 55 68 87
64
77 55
84
67
73
75
80
82
83
63
7
76
66
29
37
78
71
29 43
80
84
45
53 60
57
85
67
81
56
63
47 85
59
67 75
50
78
80
72 76
67
29 80
85
20
77
55
82
33
75
83
59
62
69
68
56 43
72
52 35
40
75
55
76
82 68
80
62
70
87 41
65 64
55
46
77 80
52
75
40
87
81
56
13
71
89
63
31
74
79
74
10 61
49
58
26 47 88
42
32
80
68
84
32 77
87
28
86 60 87
84
66
7
23
24
73
21
67
19
54
69
76
75 40
78
40
77
55
22
64
20
64
43
72
50
59
77
41
17
74
19
64
26
65
23
19
65
12 32
68
19
83 47
67
76
56
80
18
47
81
56
53
79
78
64
74
65
83
67 63
72
82
68 72
55
54 74
80
52
62
34
80
35 33
65
26
36
33
55
78
83
78
24
73
51 53 52
71 30
48
49
60
55
47
84 40
46
68
51
57
45
35 38 83
75
84
56
48
49
57
76
55
66
50
47
57 50
69
85
56
88
65
32
67
71
36
74
78
65
27 86
55
38
43
66
11
65
15
45
59
13
75
15
20 80
55
65
27
65
15
35
40
70
80
65
88
18
35 53
79
70
70
2 84
76
10 74
62
78
72 57 51
55
70 68
60
45
55
64 54
55
35
67
64
78
67
65
65
67
25 15
20
17
62
39
52 84
63
41
49 61 63 85
44
65
55
55
60
81
60
60
40
86
52
64
88
87
55
85 81
50
82
15
16 80
30
73
84
70
48
78
75
45
73
78
21
35 58
24
81
84
25
60
60
74
55
24
80 71 51
30
8
87
86
26
52 88
70
82 30
64
60
81
47
88 81
65 69
67
34
80
68
74
79
85
79
19
72
57
16
27
38 60
83
85
24
88
35
45
74
33
80
44
25
53
43
80
68
19
16
70
68 70
61
88
32
60
45
37
48
25
64
23 37
88
60
77
42
72 59
86
43
16
55
80
46
41
57
34
44
66
53
73
40
46
72 27
41 88
65
58
68
78
70
88
65
55
73
40
27 68
44 85
44
20
33
15
54 53
69
72
30 80
42
84
87
85
50
85
70
67
87
81
77 81 20 82
46 57
20
24
40
60
60
25
55
83
49
5
47
81
68
52
78
34
54
67
72
61
56
60
70
64
61
72
71
78
50
52
56
49 88
67 49
67
55
49
65
67
21
51
36
85
25
80
85 72
76
3
47
65
86
46
54
72
44
62 84
52
32
30
70
74
22 15
85
65 13
70 11
52
42
73
85
8
77
21
65
17
76
51
67
65
80
60
80
26
14
10 24
29
65
64
33
16
17
78
Future
Mapping
Project
Zgchu
Zgchu
Zgchu
Zgchu
Zgchu
Zgchu
Zgchu
Zgchu
Zgchu
Zgchu
Zgchu
Zgchu
Zgchu
Zgchu
Zgchu
Zgchma
Zgchma
Zgchma
Zswbw
Zswbw
Zswbw
Zswbw
Zswbw
Zswbw
Zswbw
ZYlbg
Ygg
Ygg
Ygg
Ygg
Ygg
Ygg
Ygg
Ygg Ygg
Ygg
Mi
Mi
NB102
99
13
14
NB100
NB98
NB99
NB45
BC13 5
17
RW6
BC82
Snowbird
Formation
Metasediments
Granitic
Basement
Gneisses
Cartoogechaye
Terrane
Great Smoky
Group
Greenbrier fault
Hayesville fault
arrow indicates
thrust movement
direction
S S
S S
S S S S S
unconformity
plunging
antiform
plunging
synform
fault contact with teeth
on hanging wall block
TECTONIC AND METAMORPHIC CONDITIONS
GREENBRIER FAULT
GREENBRIER FAULT
FAULT
HAYSEVILLE
area of increasing migmatization
and pegmatite occurrence
Future
Mapping
Project
4000
5000
3000
2000
1000
Sea Level
FEET
A
4000
5000
3000
2000
1000
Sea Level
FEET
CROSS SECTION A-A'
Unit Contact
Fault Contact
Form Lines
A'
relative thrust motion
Big Witch Creek
Jenkins Mountain
Soco Creek
US Highway 19
Shut-in Creek
Plott Balsam Ridge
Firescald Ridge SW flank
Zgchu
Zswbw
Zswbw
Zswbw
Ygg
Ygg Zgchu
Zgchu
Zgchma
Greenbrier
fault
Greenbrier
fault
Future Mapping Project
£¤23 £¤74
£¤Bus
23
£¤23
£¤74
£¤74 £¤23
£¤19£¤19
£¤19£¤19
TRAV ERSE MAP
Red lines show paths of field traverses.
Future
Mapping
Project
SAMPLE2
COORDINATES
(State Plane NAD 83 m) ROCK TYPE
MAP
UNIT SiO2 Al2O3 Fe2O3 MgO CaO Na2O K2O TiO2 P2O5 MnO Cr2O3 Ba Cu Zn Ni Co Sr Zr Ce Y Nb Sc LOI4 SUM5
5 198,473N; 227,192E myloni􀆟􉽣c meta-arkose Zswbw 86.21 6.45 1.29 0.16 0.39 0.91 3.43 0.47 0.04 0.02 0.013 875 <5 13 <20 <20 116 258 34 14 <5 2 0.5 100.02
13A 200,880N; 227,353E myloni􀆟􉽣c grani􀆟􉽣c gneiss Ygg 66.86 15.51 4.28 0.96 0.53 0.76 7.94 0.97 0.16 0.04 0.011 1460 <5 61 <20 <20 146 580 100 32 21 10 1.7 100
14 200,769N; 227,413E grani􀆟􉽣c gneiss Ygg 71.99 14.15 2.34 0.65 1.56 3.03 5.02 0.28 0.1 0.05 <0.002 1161 <5 44 <20 <20 326 119 40 8 <5 4 0.7 100.02
17 197,883N; 227,187E myloni􀆟􉽣c meta-arkose Zgchma 86.07 5.71 1.06 0.13 0.14 0.52 3.68 0.18 0.04 0.01 0.003 971 <5 <5 <20 <20 110 143 <30 3 <5 <1 2.3 100.03
99 201,955N; 224,567E metagraywacke Zgchu 80.45 8.77 2.6 0.83 1.02 2.24 0.92 0.54 0.13 0.1 0.004 390 <5 20 <20 <20 165 433 54 21 19 4 2.2 99.99
BC13 198,428N; 230,227E metaconglomerate Zgchu 82.56 7.83 2.68 0.63 0.05 0.59 2.92 0.67 0.02 0.04 0.016 737 <5 22 <20 <20 85 518 32 15 20 4 1.9 100.02
BC82 197,453N; 232,566E myloni􀆟􉽣c metagraywacke Zgchu 70.21 12.73 5.36 1.8 1.44 2.65 2.05 0.89 0.25 0.06 0.018 668 10 89 <20 <20 289 529 <30 23 7 9 2.3 99.98
NB45 198,951N; 230,676E myloni􀆟􉽣c meta-arkose Zgchma 86.41 5.1 0.89 0.12 0.28 0.68 2.75 0.18 0.03 0.01 0.012 929 <5 7 <20 <20 111 125 <30 5 <5 <1 3.4 100.04
NB98 201,207N; 232,930E myloni􀆟􉽣c meta-arkose Zswbw 82.19 8 1.51 0.16 0.08 0.99 4.53 0.41 0.03 0.02 0.018 1001 <5 <5 <20 <20 126 249 <30 6 16 2 1.9 100.03
NB99 201,301N; 232,952E myloni􀆟􉽣c grani􀆟􉽣c gneiss Ygg 66.81 16.65 2.8 0.55 2.7 3.53 5.44 0.37 0.06 0.06 0.008 1358 <5 30 <20 <20 431 215 217 7 <5 3 0.8 100.02
NB100 201,126N; 232,207E myloni􀆟􉽣c meta-arkose Zswbw 89.28 5.15 1.19 0.07 0.02 0.1 3.2 0.26 0.03 0.02 0.003 772 <5 6 <20 <20 84 172 40 9 11 <1 0.6 100.03
NB102 198,720N; 224,781E grani􀆟􉽣c gneiss Ygg 63.47 16.25 5.66 1.66 4.38 3.34 2.74 0.79 0.26 0.08 0.003 1437 <5 76 <20 <20 625 281 77 19 5 11 1 99.99
RW6 197,315N; 230,866E migma􀆟􉽴te Zgchu 73.13 16.66 1.05 0.18 0.71 3.1 2.61 0.09 0.04 0.08 0.003 956 <5 27 32 <20 288 55 <30 16 13 3 2.2 100.02
OXIDES IN PERCENT ELEMENTS IN PPM3
WHOLE ROCK ICP ANALYSIS1 OF SELECTED SAMPLES
1Whole Rock Inductively Coupled Plasma - Atomic Emission Spectrometer (ICP) analysis conducted by Acme Analytical Laboratories, LTD., 852 E. Hastings St., Vancouver, BC
2Sample numbers correspond to thin section and whole rock sample localities shown on geologic map
3PPM = parts per million
4LOI = loss on ignition in percent
5SUM = Sum total in percent
A'
A
MINERAL RESOURCES
Thin section sample site.
COMMODITY LETTER
SYMBOLS:
Mine or quarry
Mi Mica
NB98
Prospect
Layered biotite gneiss
Feldspathic metagraywacke
MAP UNITS
MESOPROTEROZOIC NEOPROTEROZOIC
Great Smoky Group
Mesoproterozoic metaigneous rocks
Cartoogechaye Terrane
Snowbird Group
Copperhill Formation
Wading Branch Formation
Mylonitic meta-arkose
Undivided
Granitic gneiss
Zgchu
Zgchma
Zswbw
ZYlbg
Ygg
Poles to mylonitic foliations. n = 398
N
N
Trend and plunge of minor fold axes. n = 24
Trend and plunge of mineral lineations. n = 19
Poles to foliations. n = 398
N
Poles to joints with unidirectional Rose diagram inset. n = 883
45
90
135
180
225
270
315
N
SCHMIDT EQUAL AREA STEREONET DATA
BEARING AND PLUNGE OF LINEAR FEATURES
NON-STRUCTURAL FEATURES
Float Location
Small Fold Axis
15
8
Slickenlines
Mineral Lineation
Crenulation
Cross Cutting Trend
1
Observation sites are centered on the strike bar,
or at the intersection point of multiple symbols.
STRIKE AND DIP OF PLANAR FEATURES
Vertical Joint
Joint
88
Mylonitic Foliation
Foliation
Cleavage
Horizontal Foliation
Horizontal Mylonitic Foliation
78
Minor Fault 34 43
Vertical Mylonitic Foliation
Vertical Foliation
Bedding
15
STRUCTURAL FEATURES
CONTACTS
Solid line _ located in field to within 150 meters
Short-dashed _ location inferred; querried where uncertain
Thrust Fault
(teeth on upper plate)
Stratigraphic Contact
47
75
76
ROCK DESCRIPTIONS
Great Smoky Group
Copper Hill Formation
Undivided (Zgchu) — Thick, interbedded sequence of metagraywacke, schis-tose
metagraywacke, schist, granule metaconglomerate and calc-silicate.
Metagraywacke is medium-light-gray to medium-dark-gray; medium- to
coarse-grained; equigranular to inequigranular; foliated; locally migmatitic; locally
sulfidic; consists of quartz, plagioclase, muscovite, potassium feldspar, garnet,
epidote group minerals and minor accessory minerals.
Schistose metagraywacke is medium-gray to medium-dark-gray,
commonly stained yellowish-dark-gray; strongly foliated; fine- to medium-grained;
inequigranular to lepidoblastic; locally migmatitic; locally sulfidic; consists of
quartz, plagioclase, muscovite, biotite, garnet, kyanite and/or sillimanite, and iron
sulfide minerals (pyrrhotite, pyrite).
Schist is medium-gray to medium-dark-gray to dark-gray; medium- to
coarse-grained; inequigranular; lepidoblastic; thinly foliated; locally sulfidic; locally
graphitic; consists of muscovite, biotite, quartz, garnet, kyanite and/or sillimanite,
pyrrhotite, pyrite, graphite, and other accessory minerals.
Granule metaconglomerate is medium-gray to dark-gray; medium- to
coarse-grained; poorly sorted to graded; subangular to subrounded grains;
granule to pebble conglomerate with a sandy matrix in which the larger grains are
usually well sorted and consist of clear to white quartz, white feldspar, and finer
blue quartz.
Mylonitic meta-arkose (Zgchma) — Mylonitic meta-arkose interlayered with
lesser amounts of mylonitic metagraywacke, mylonitic feldspathic metagray-wacke,
and minor conglomeratic metagraywacke. Meta-arkose is light-gray,
pinkish-gray to tan; fine- to coarse-grained; equigranular to inequigranular;
foliated; lineated; mylonitic; consists of 50-70% quartz, 20-35% potassium
feldspar, 5-20% plagioclase, 2-10% biotite, 1-10% muscovite, accessory amounts
of garnet, and 1-2% opaques; locally contains feldspar porphyroblasts. Occurs as
a thin, continuous horizon within the more heterogeneous metasediments of the
Copperhill Formation.
Snowbird Group
Wading Branch Formation
Feldspathic metagraywacke (Zswbw) — Feldspathic metagraywacke inter-bedded
with granule conglomerate with minor schistose metagraywacke and
muscovite schist. Feldspathic metagraywacke is moderate-reddish-orange to
pinkish-gray to tan; medium- to coarse-grained; well foliated; commonly mylonitic;
poorly to moderately-well sorted; subrounded fragments; medium- to thick-bedded;
consists of quartz, potassium feldspar, plagioclase, sericite and minor
accessory minerals.
Cartoogechaye Terrane
Layered biotite gneiss (Zylbg) — Medium-gray to dark-gray; inequigranular;
granoblastic to lepidoblastic; well foliated; migmatitic; highly layered; layer thick-ness
ranges from millimeters to meters; consists of plagioclase, quartz, biotite,
hornblende, garnet, potassium feldspar, epidote group minerals, muscovite,
ilmenite and minor accessory minerals. Interlayered with biotite gneiss, amphibo-lite,
and biotite schist.
Mesoproterozoic metaigneous rocks
Granitic gneiss (Ygg) — A heterogeneous metamorphosed igneous unit domi-nated
by granitic gneiss interlayered with biotite granitic gneiss, amphibolite and
garnetiferous granofels gneiss. Granitic gneiss is pinkish-gray to brownish-gray to
light-gray; medium- to coarse-grained; inequigranular; granoblastic to lepidoblas-tic;
mylonitic to weakly foliated; consists of plagioclase, quartz, potassium
feldspar, biotite, sericite, epidote group minerals, garnet, hornblende and acces-sory
minerals. Amphibolite occurs as minor pods and lenses ranging in size from
millimeters to meters.
Bedrock Geologic Map of the Sylva North 7.5-minute Quadrangle, North Carolina
NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF ENERGY, MINERAL, AND LAND RESOURCES
Tracy E. Davis, Director
Dr. Kenneth B. Taylor, State Geologist
NORTH CAROLINA GEOLOGICAL SURVEY
By
Bart L. Cattanach, Jennifer B. Bauer, Stephen J. Fuemmeler, G. Nicholas Bozdog, and Richard M. Wooten
This geologic map was funded in part by the USGS National Cooperative Geologic Mapping Program OPEN FILE MAP 2012-07
N.C.
1823
GEOLOGICAL SURVEY
Research supported by the U.S. Geological Survey, National Cooperative Geologic Mapping
Program, under USGS award number G11AC20296. The views and conclusions contained
in this document are those of the authors and should not be interpreted as necessarily
representing the official policies, either express or implied, of the U.S. Government.
Geology mapped from May 2012 to September 2012. Field assistance by Abigail Bullard. Map preparation, digital cartography
and editing by G. Nicholas Bozdog, Bart L. Cattanach and Richard M. Wooten.
2012
This Open-File Map is preliminary. It has been reviewed
internally for conformity with North Carolina Geological
Survey mapping standards and with the North American
Stratigraphic Code. Further revisions or corrections to
this Open File map may occur.
Sylva North 7.5-minute, Open File Map 2012-07