Asheville Geol Map Rev [Converted]

GEO
L
BEDROCK GEOLOGIC MAP OF THE ASHEVILLE 7.5-MINUTE QUADRANGLE, NORTH CAROLINA
N.C.
ICAL SURVEY
OG
N.C.
1823
1823
NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF LAND RESOURCES
Zags
36
38
75
76
30
17
Zags
53
29
29
62
15 42
54
62
16
53
46
27
86
50
48
82
72
59
84
Zas
18
79
47
53
50
42
63
86
40
57
51
43
83
50
82
22
66
5
62
85
83 86
7176
86
16
63
72
82
63
57
79
25
53
87
70
72 84
38
55
33
35
84
86
79
82
63
70
75
82
86
82
41
78
24
86
69
50
Zags
66
44
81
73
43
52
30
79
44
66
85
81 85
71
41
71
63
68
Zas
75
81
88
42
86
55
24
88
66
75
57
Zags
64
68
85
70
77
59
72
75
42
82
58
72
A
44
s-1
82
58
5
7
7
51
Zas
86
Zag
s-3
89
79
47
68
23
Zags
51
85 12
39
68
15
65
65
70
35
85
4
78
Zas
79
10
05
46
14
76
44
1
89
42
37
54 63
88
Zags
67
86
68
12
64
17
78
75
55
75
50
70
75
68
80
78
59
Zas
14
73
72
54
88
57
68
52
56
82
84
58
66
66 77
26
61
69
Zags
27
74
hm-10
43
Zasc
42
hm-9
24
43
32
73
88
68
19
57
74
33
1
52
20
47
33
62
25
88
76
42
52
85
13
Zas
20
37
41
35 35
24
Zas
46
30
Zaa
84
23
85
60
56
Polyconic projection. 10,000-foot grid ticks based on North Carolina coordinate
system
1,000-meter Univeral Transverse Mercator grid ticks, zone 17
hm-4
28
6
23
51
88
24
14
25
54
32
Zas
13
21
29
9
42 33
81
85
19
54
75 74
29
44
75
58
67
86
15
78
70
9
30
20
61
18
37 65 57
30
8
62
21
67
36
32
17
77
20
21
1
31
30
21
5
28
23
82
24
22
82
88
20
72 88 13
43
14
85
49
Zas
67
37
4000
5000
6000
PROSPECTS, QUARRIES, AND SAND RESOURCES
ASHEVILLE, N.C.
35082-E5-TF-024
1961
PHOTOREVISED 1991
0
1 KILOMETER
FEET
DASHED LINES REPRESENT HALF-INTERVAL CONTOURS
NATIONAL GEODETIC VERTICAL DATUM OF 1929
FEET
st
sil
sil
gt
cld
st
sil
sil
hbl
ky
gt
TRAVERSE MAP
Description
Ethel Rice Heirs mica prospect
H.D. McDowell mica prospect
Lora Lee Mathews mica prospect
Unnamed stone quarry
Unnamed stone quarry
Unnamed stone quarry
Unnamed stone quarry
Pond Road crushed stone quarry
Harrin’s Sand Company dredge
Harrin’s Sand Company dredge
Harrin's Sand Company dredge
Latitude; Longitude
NC COORDINATES
(decimal degrees)
hm-9 : Stream sediment heavy mineral sample site. Sample
numbers correspond to stream sediment heavy mineral analyses
listed in table below.
(State Plane, NAD 83 meters)
35.61565 N; 82.60157 W
35.58047 N; 82.54747 W
35.53667 N; 82.61023 W
35.61663 N; 82.53543 W
35.61335 N; 82.51448 W
35.58872 N; 82.54250 W
35.56097 N; 82.59702 W
35.54322 N; 82.60563 W
35.56487 N; 82.57882 W
35.56497 N; 82.58247 W
35.55407 N; 82.59002 W
212,888N; 283,423E
208,811N; 288,181E
204,160N; 282,320E
212,781N; 289,414E
212,350N; 291,298E
209,710N; 288,664E
206,811N; 283,615E
204,871N; 282,763E
207,183N; 285,279E
207,207N; 284,949E
206,023N; 284,221E
mi-2 : Mineral resource number referred to in accompanying
Mineral Resource Summary. Commodity indicated by letter
symbol.
COMMODITY LETTER
SYMBOLS:
Sand dredging operation
Abandoned sand dredge
cs Crushed stone
Abandoned quarry
mi Mica
Prospect
s Sand
Zas
Zag
Zags
Zaa
Blue Ridge Parkway
French Broad River
Zas
I-40
3500
2500
Zags
1500
Zas
hm-1
hm-2
hm-3
hm-4
hm-5
hm-6
hm-7
hm-8
hm-9
hm-10
FEET
Hominy Creek
A’
LATITUDE; LONGITUDE
(decimal degrees)
35.62073 N;
35.60247 N;
35.51542 N;
35.52108 N;
35.53452 N;
35.53120 N;
35.52078 N;
35.53613 N;
35.51487 N;
35.51043 N;
82.59408 W
82.51682 W
82.56662 W
82.51963 W
82.50300 W
82.56302 W
82.56493 W
82.57493 W
82.58080 W
82.62042 W
NC COORDINATES
(State Plane, NAD 83 meters)
MAP UNITS
DRAINED2
213,427N; 284,121E
211,152N; 291,044E
201,662N; 286,188E
202,137N; 290,469E
203,574N; 292,029E
203,399N; 286,577E
202,250N; 286,362E
203,985N; 285,517E
201,647N; 284,900E
201,285N; 281,291E
Zag, Zas
Zag
Zag
Zas
Zas
Zag, Zas
Zag
Zag
Zag
Zag, Zas
% hm IN
SAMPLE3
tr
tr
tr
0.04
tr
0.04
0.08
0.05
0.61
0.01
Mag
Op
9.4
7.0
33.0
21.9
70.6
18.4
9.5
16.8
3.1
29.3
26.3
22.2
15.4
30.6
1.6
20.9
33.9
30.3
34.3
20.5
PERCENT HEAVY MINERALS IN SAMPLE4
Gt
Hbl
Zr
Ep
Sil
Rt
3.3
26.4
14.4
20.3
14.3
17.3
18.7
16.1
21.2
39.9
14.1
21.7
6.5
13.8
3.1
7.2
3.9
8.1
15.1
0.0
10.3
5.2
18.1
7.9
5.2
19.3
11.3
20.6
11.6
2.3
12.2
3.8
0.6
2.1
1.6
5.6
11.7
2.0
6.1
2.7
0.0
1.4
8.0
1.4
0.4
5.6
9.1
4.0
3.5
0.0
2.3
0.0
0.9
0.0
0.0
0.4
0.0
0.0
0.0
0.0
Ky
St
Tt
4.7
3.3
0.6
1.0
0.1
1.6
0.0
0.0
1.0
0.0
17.4
9.0
2.5
1.0
2.8
3.6
1.7
1.6
3.0
5.3
0.0
0.0
0.0
0.0
0.3
0.0
0.0
0.4
1.0
0.0
1
Sample numbers correspond to heavy mineral sample localities shown on geologic map
2
Map units contributing to the drainage basin, listed in descending order of map area
Weight percent heavy minerals in stream sediment sample
Weight percent of heavy minerals: Mag=magnetite, Op= opaques other than magnetite in heavy minerals, Gt=garnet, Hbl=hornblende, Zr=zircon, Ep=epidote minerals (epidote, clinozoisite), Sil=sillimanite, Rt=rutile, Ky=kyanite, St=staurolite, Tt=titanite
Monazite was not observed but is expected to occur in Ashe heavy mineral samples.
3
4
Zags
Zag
500
no vertical exaggeration
Sea Level
SCHMIDT EQUAL AREA STEREONET DATA
form lines
Zas
Zag
Zags
Zas
Zas
Zag
N
N
N
3500
2500
1500
Zags
Zag
500
FEET
x
B’
Haw Creek
Zag
Piney Mountain
B
Ross Creek
CROSS SECTION B-B'
Beaucatcher Mountain
N
1500
sil
sil
STREAM SEDIMENT HEAVY MINERAL ANALYSIS
contact
2500
sil
sil
DMA 4455 II SE-SERIES V842
Sea Level
3500
Map
Number
mi-1
mi-2
mi-3
cs-1
cs-2
cs-3
cs-4
cs-5
s-1
s-2
s-3
Zaa
SAMPLE1
Zags
500
gt
MINERAL RESOURCES
3
7000 FEET
Zag
Zags
bt
Mineral adjectives are arranged in order of increasing abundance.
11
Zags
25
14
1 MILE
I-26
1500
sil
Approximately 14 kg of stream sediment was panned to approximately 300 g of heavy mineral concentrate, which was further separated with
tetrabromoethane. At least 200 grains were identified with a petrographic microscope and refraction oil of n=1.47.
A
Lake Ashnoca
ky
bt
CONTOUR INTERVAL 20
CROSS SECTION A-A'
2500
sil
gt
Green lines show paths of field traverses made to collect geologic control.
45
27
North American Datum of 1983 (NAD 83) is shown by dashed corner ticks. The
values of the shift between NAD 27 and NAD 83 for 7.5-minute intersections are
given in USGS Bulletin 1875.
3500
gt
bt
sil
39
25
82
o
UTM GRID AND 2008 MAGNETIC NORTH
DECLINATION AT CENTER OF SHEET
bt
sil
bt
Actinolite Schist — Mottled dark green and white, moderately to strongly foliated, fine- to medium-grained,
xenoblastic to hypidioblastic; layering ≤ 4 meters. Consists primarily of actinolite-rich (90%) and
actinolite-poor quartzofeldspathic sub-layers < 1 centimeter thick, with 0-90% actinolite, 2-60% quartz,
0-30% K-feldspar (microcline), 3-10% plagioclase, 2-5% biotite, 0-1% titanite, and traces of apatite, calcite,
and pyrite. Not exposed in mappable units. One 4-meter-thick layer occurs at the west end of the
Beaucatcher Mountain road cut on I-240.
84
25
QUADRANGLE LOCATION
0
0.5
sil
Garnet Granofels — Mottled pink and white and non-foliated; fine- to coarse-grained garnet-biotite schist is
mottled pink and brown and strongly foliated. These two rock types are end-members of the same unit that
are distinguished by increasing amounts of biotite from granofels to schist. They may be interlayered or
graded between the two end members. Thickness of layering is in decimeters to meters. Consist of 30-40%
plagioclase, 30-60% almandine, 2-10% sillimanite, 2-5% biotite, 0-10% K-feldspar; 0-1% each kyanite,
muscovite, titanite, and pyrrhotite; and traces of zircon, apatite, calcite, rutile, ilmenite, chalcopyrite, and
pentlandite. The largest layer in outcrop reaches 30 meters thick at the northwest end of the Beaucatcher
Mountain road cut.
A'
SCALE APPROXIMATELY 1:24000
3000
gt
11
26
75
2000
sil
MINOR ASHE METAMORPHIC SUITE ROCKS
22
1000
gt
Amphibole-Biotite Granofels — Mottled medium-dark gray, granoblastic to weakly foliated,
medium-grained, xenoblastic to hypidioblastic; layer is in meters. One sample from the Beaucatcher
Mountain road cut contained 74% plagioclase, 10% chlorite, 5% biotite, 5% hornblende, 5% cummingtonite,
and traces of apatite, calcite, ilmenite, hematite, goethite, pyrrhotite, chalcopyrite, and pentlandite.
8
43 15
52
14
41
20
22 40
24
83
34
82
43
11
18
30
0.5
1
26
81
12
24
75
49
0
26
14
Zags
18
1000
30
52
Zags
19
21
13
Zags
1
51
86
14
18
30
Zags
60
26
30
(SKYLAND)
193-NE
bt
Trondhjemite — Very light gray to nearly white; fine to medium grained; granoblastic. Thickness ranges from
centimeters to meters. Consists of 50-70% plagioclase, 25-45% quartz, 2% biotite, 5-10% muscovite, and
traces of K-feldspar, chlorite, and zircon. Trondhjemites typically cross-cut foliation of other rock units. Not
found in mappable units.
52
30
20
46
30
28
16
8
36
78
68
Zaa
55
Zas
41
53
31
49
53
43
0 o 55'
16 MILS
88
58
28
13
7
53
63
40
GN
5 58'
99 MILS
Zaa
08
MN
Control by NOS/NOAA, USGS, and TVA
Revised by TVA in 1961 by photogrammetric methods using aerial photographs
taken in 1960 and by reference to TVA-USGS quadrangle dated 1943. Map field
checked by TVA, 1961
40
22
42
73 18
st - staurolite
24
41
21
74
Topography mapped and edited by the Tennessee Valley Authority
Published by the Geological Survey
69
60
22
31
25
4
67
8
71
47
31
89
17
20
26
25
73
49
35
17
78
33
Zags
30
58
89
29
20
81
42
30
31
20
43
30
83
72
8
63
25
28
66
44
56
28
45
38
76 23
17
85
39
23
30
20
8
3
52
73
83
48
81
20 33
28
7
23
42
Zas
34
11
88
19
18
60
68
73 78
49
18
hm-3
80
55
Zags
gt - garnet
DESCRIPTION OF OTHER ROCK TYPES
35
42
15
21
10
18
29 16
20
55
32
84
81 85
54
62
43
9
41
47
29
34
Zags
35 67
69
25
33
33
54
65
Zas
19
19
8
39
43
Zags
Zags
61
39
38
61
18
85 39
34
33
5
83
30
37 86
35 15
10
32
63
83
Zas
64
87
82
20
13
24
78
5
41
20
66
36 44
42
51
26 88
44
82
58
88
86
62
29
60
52
8
12
80
68
40
85
55 83 04
30
34
Zas
Zas
77
83
34
87
51
75 36
78
62
60 54
73
61
43
58
hm-7 65
43
66
14
24 52
34
29
32
49
27
38
69
37
27
53
1
62
36
78
71
43
46
62
24
76
76
63
60
Zags
19
76
54
71
25
50
59
48
83
18
Zags
28
13
41
88
83
74
34
59
78
43
82
39
20
67
22
74
63
28
45
27
hm-5
Zas
64
14 15
78
47 42
66
18
63
67
sil - sillimanite
Pegmatite — Mottled white to very light gray, nonfoliated, very coarse grained, and lenticular to tabular;
thickness ranges from centimeters to meters. Consists primarily of plagioclase and quartz with minor
microcline, muscovite, biotite, and garnet. Pegmatites typically cross-cut foliation of other rock units. Not
found in mappable units.
46
Zags
13
42
cld - chloritoid
Thin section sample site
ky
PALEOZOIC INTRUSIVES
73
Zags
50
ky - kyanite
The following rock types also occur on the Asheville 7.5-minute quadrangle, but individual bodies are too
small and discontinuous to be shown at this scale.
54
58
72
bt - biotite
hbl - hornblende
Metagraywacke (Zag) — Light to dark gray; nonfoliated to strongly foliated; fine to medium
grained; granoblastic to lepidoblastic; layering ranges from centimeters to several meters. Consists of
20-70% quartz, 10-50% plagioclase, 0-30% K-feldspar, 10-20% biotite, 0-7% almandine, 0-5% muscovite;
traces to locally minor epidote, clinozoisite, kyanite, sillimanite, staurolite; and traces of cummingtonite,
zircon, apatite, calcite, rutile, ilmenite, magnetite, hematite, pyrrhotite, pyrite, and chalcopyrite.
11
33
69
55
34
Stream sediment heavy
mineral sample site
sil
53
Zas
Zas
76
25
60
hm-6
82
22
30
67
28
60
61
84
2
19
37
68
Zas
80
25 88
Prograde metamorphic minerals observed in stream sediment heavy
mineral samples and thin sections shown. Stream sediment heavy
mineral sample site localities shown on geologic map.
84
57
76
56
Axis of map-scale antiform
inferred
Chloritoid-Garnet-Chlorite-Quartz-Muscovite Schist
84
35
72
60 82
81 66 75
76
81
75
32
Axis of map-scale synform
inferred
Chloritoid-Garnet-Chlorite-Quartz-Muscovite Schist (Zasc) — Mottled silvery white to silvery
medium gray, strongly foliated, fine to medium grained; in meters-thick layers. Consists of 40-70%
muscovite, 5-50% quartz, 10-15% chlorite, 10-15% almandine as porphyroblasts (≤1 mm), and 2-10%
chloritoid as porphyroblasts (≤ 10 mm), and traces of pyrrhotite and magnetite.
79
36
54
77
67
74
71
78 34
53
46
41
76
31
81
71
63
66
78
hm-8
84
62
42
64 78
86
71
75
70
75
88
28
52
54
53
87
28
71
80
33
Mineral lineation
MAP SCALE STRUCTURAL FEATURES
Amphibolite (Zaa) — Black to mottled black and white, weakly foliated, fine- to coarse-grained,
hypidioblastic; some fine-grained amphibolites contain hornblende in the main rock matrix as well as
porphyroblasts (≤ 2 mm); decimeter to meter-scale layering. Consists of 50-70% hornblende and 25-50%
plagioclase, 0-5% biotite, and traces of chlorite, zircon, apatite, calcite, rutile, ilmenite, magnetite, hematite,
pyrrhotite, chalcopyrite, and pentlandite (always as inclusions in pyrrhotite). Occurs most often as small
tectonized fragments a few meters in outcrop dimension. One 30-meter-thick conformable layer occurs in
the central-east end of the Beaucatcher Mountain road cut. Protolith is mafic rock or sedimentary derivative
of a mafic rock.
Zags
32
74
32 54
68
7
Zas
27
77
Zags
78
70
65
34
73
60
20
73
46
57
70
30
66
72
30
75
5
Zas
mi-3
86
62
48
23
68
60
26
27
3
82
Zags
68
86
72
Amphibolite
23
Horizontal fold axis
Garnet-Mica Schist1 (Zas) — Dark, silvery bluish to greenish gray, strongly foliated, fine to medium
grained, lepidoblastic; layering in meters. Consists of varying amounts of micas, with 5-60% muscovite,
variable but persistent (1-30%) chlorite and (0-30%) biotite; highly variable (0-65%) quartz, (tr-65%)
plagioclase, and (0-33%) almandine; widespread traces of sillimanite; and rare traces of clinozoisite, zircon,
ilmenite, magnetite, pyrrhotite, pyrite, and chalcopyrite.
27
63
Zag
83
05
41
64
80
68
88
2
18
17
28
84
78
31
39
54
82
72
74
51
81
59
33
49
51 58 85
79
1828
71
54 88
74 3
88
68
72
48 25
9
cs-5 77
59
37
64
83
32
46
88
35
43
58
69
Zags
7
74
75
64
41
16
53
80
Zags
44
Zag
86
83
Zas
22
35
12
83
61
4
Zags
79
77
83
75
73
40
79 77
Zas
87
72
Zaa
Vertical fold axis
Schistose Metagraywacke (Zags) — Light to medium gray; nonfoliated to weakly foliated; fine to
medium grained; granoblastic to lepidoblastic; layering ranges from centimeters to several meters. Consists
of 35-58% quartz, 20-41% plagioclase, 2-15% K-feldspar, 10-20% biotite, 0-10% muscovite, 0-5% almandine,
widespread traces of zircon, and occasional traces of apatite, calcite, rutile, ilmenite, pyrrhotite, pyrite, and
chalcopyrite.
Zags
79
43
71 51
52
69
8
Zags
70
Zags
17
51
cs-4
86
10
52
66
Zas
53 46
74
8
81
62
19
34
03
80
70
9
24
54
54
78
88
08
71
84
8
63
79
192-SW
(ENKA)
s-2
65
7
68
72
57
67 85
69
11
48
75
86
Sillimanite-Garnet-Chlorite-Mica Schist
ASHE METAMORPHIC SUITE — The Ashe Metamorphic Suite is predominantly schistose metagraywacke
(Zags), less abundant metagraywacke (Zag) and garnet-mica schist (Zas), and minor amphibolite (Zaa) and
chloritoid-garnet-chlorite-quartz-muscovite schist (Zasc). Garnet granofels, garnet-biotite schist, actinolite
schist, and amphibole-biotite granofels are widely scattered in non-mappable amounts. The protolith of the
amphibolite is a mafic rock or a sedimentary derivative of a mafic igneous rock, and the calc-silcate rocks
(garnet granofels, garnet-biotite schist, actinolite schist, and amphibole-biotite granofels) originated from
sedimentary derivatives of mafic rocks. The sequence in the Asheville 7.5 minute quadrangle is composed
dominantly of continentally derived clastic sediments with minor amounts of interlayered volcanics.
Deposition occurred in a marine basin. The Ashe Metamorphic Suite has been metamorphosed to
sillimanite grade, amphibolite facies. Muscovite porphyroblasts (≤1 cm) are abundant regardless of rock
type in varying amounts throughout the quadrangle.
66
72
72
Zas
DESCRIPTION OF MAP UNITS
58
75
Zas
Fold axis
Zasc
60
58
70
76
Vertical joint
ELEMENTS OF
METAMORPHIC CONDITIONS
58
75
Joint
63
15
88
04
65
61
Shear zone
BEARING AND PLUNGE OF LINEAR FEATURES
Metagraywacke
Zag
Zags
74
57
70
66
29 22
65
82
B'
21
14
Zags
80
67
Zags
63
87
77
59
82
72
27
65 70
Foliation
Vertical foliation
83
52
37
Schistose Metagraywacke
Zags
68
Zas
Observation sites are centered on the strike bar,
or are at the intersection point of multiple symbols.
ASHE METAMORPHIC SUITE
85
89
STRIKE AND DIP OF PLANAR FEATURES
19
04
83
Zags
Zags
88
Zags
83
72
MAP UNITS
39
18
82
68
83
78
12
(inferred)
37
47
72
88
52
81
66
Stratigraphic Contact
75
64
69
84
25
mi-2
67
76
33
cs-3
17
64
Zag
64
67
72
74
77
83
85
15
77
79
26
86
70
53
70
68
78
70
86
68
25
73
68
84
80
26
CONTACT
24
Zags
63
82
Map preparation and editing by William Miller, Nick Bozdog, Bart
Cattanach, Carl Merschat, and Ken Taylor.
STRUCTURAL FEATURES
58
56
Field reviews by: Carl Merschat, Mark Carter, Tyler Clark, Richard
Wooten, Phil Bradley, and Leonard Wiener.
Zag
49
86
For helpful guidance and discussion, we thank Carl Merschat, Mark
Carter*, and Bart Cattanach, North Carolina Geological Survey
(NCGS); also helpful for discussion and reviews were Leonard Wiener
(NCGS, retired), and Steve Yurkovich (Western Carolina University,
Emeritus). Thanks are due Karen Thomas (University of North
Carolina Asheville**) for heavy mineral collection and analyses and
Nick Bozdog (NCGS) for drafting assistance.
*Currently with Virginia Department of Mineral Resources
**Currently Environmental Consultant, Decatur, AL.
46
80
66
78
38
62
73
66
56
75
Zags
88
62
87
37
49
63
56
71
72 49 82 77
76
87
62 58
72
85 65
66
61 73
Zag
78 49
29
83
77 86
82
84 78
63
61
44
82
76
55
84
56
84
68
84
72
56
64
7
35
88 82
59
72
53
20
57
Zas
55 79
87
62
47
42 8182 81
15
86
88
18
Zag 73
74
24
65
23
58
73
89
10
58
81
58
48
52
68
79
87 16
8
9
47 83
38
87
32
66
48 52 45 9
57
74
34
83
77
32
19
72
38
60
34
59
52
75
44 65
18
59
64
18
64 83 37
74 34hm-2
49
36
72
10
69
36
85
41 77
63 88
49
80 81 79
83
76
87
78
73
83
85
72
22
68
57
10
38
55
62 86 36
61
79
75
43
46
56
72
82
77
Beaucatcher
Mountain
road cut
Zags
72
81
80
84
86
27
cs-2
43
75
85
65
66
40
42
55
81
Zas
85
ACKNOWLEDGMENTS
Research supported by the U.S. Geological Survey,
National Cooperative Geologic Mapping Program, under
USGS award number 00HQPA0002. 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.
74
77
81
76
60 63 15
48
45
71
50
58
67
6
84
66
Zas
60
86
87
Zags
68
Zas
42
86
85
Zag
67
57
84
19
42
51 51
54
83 18
73
52
24
77
58
59
55
57
63
87
Zags
71
52
51
72
56
81
60
75
84
44
86
52
35
82
63
72
53
41
54
88
51
64
53
52
67
64
58
56
27 24
Zas
53
Zag
49
85
72
23
84
64
cs-1
49
78
63
30
63
32
69
89
87
82
27
47
Zag
76
75
84
69 25
40
22
51
Zags
35
68
35
65
72
88
78
56
36
42
49
42
85 71
65
84
60
35
64
81
24
66
75
28
84
73
54
36
86
36 34
18
69
Zag
76
66
87
80
37
Zags
79
69
57
79
70
54
79 66
83
mi-1
87
58 37 36
55
77
60
77
79
28
55
88
11
59
58
30
71
85
83
73
hm-1
42
71
73
74
20
70
45
59
Zas
35
Zas
85
68
56 75
54
89
85
59 81
52
68
64
Zas 52
59
80 86
35 46
62
87
74
32
38 79
73
86
48 48
78
75
64
48-82
86
74
70
56
5
40
88
46
54
62
Zas
Zags
Zas
41
73
73
55
Late Proterozoic
Stratigraphic relations uncertain
67
55 48
75
55
(OTEEN)
201-SW
46
BY
J. WILLIAM MILLER
AND KAREN H. FRYER
2008
NORTH CAROLINA GEOLOGICAL SURVEY
Geologic Map Series - 14
This geologic map was funded in part by the USGS National Cooperative Geologic Mapping Program
192-NE
(WEAVERVILLE) B
James D. Simons, Director and State Geologist
FEET
GEO
L
ICAL SURVEY
OG
500
Sea Level
contact
form lines
no vertical exaggeration
Sea Level
Contoured poles to foliation (n=1,504 )
Mean Vector
Calculated fold axis
Best fit great circle
Contoured poles to joints (n=290)
Unidirectional Rose Diagram inset
Contoured trend and plunge of fold axes (n=127)
Mean Vector
Contoured mineral lineation orientations (n=43)
Mean Vector