07 - Buxton - AppA-Attachment 3D

APPENDIX A
ATTACHMENT 3 D
Grain Size Distributions (GSDs)
Composite Samples - Upper 10 ft of Section by Core
Coastal Science & Engineering
[2403M-Task 2-Appendix A]
Geotechnical Data Analysis
Buxton, Dare County, North Carolina

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Grain Size Distribution
Grain Size Distribution
1 -3 -Z -1 u 1 Z 3 4
Grain Size (�)
Project 2403-M
Location Buxton, NC
Date Apr 06 2021
Station BUX-35
Sample 10 ft COMP
Mean 0.478 mm
STD 0.486 mm
Skewness 0.395
USCS Wentworth
SP
Medium Sand
Medium Sand
Poorly Sorted
Poorly Graded
Symmetrical
Leptokur6c
Total weight (gram)
103.80
% finer than 0.0625 mm (dry) 1.51
% gravel (dry)
0.00
% granule (dry)
3.67
CaCO3
11.8
Class Limits Mid Point
Weight
Weight% Cumm.Wt%
Percentiles
Moment Measures
(phi) (mm)
(0
(0)
(gram)
1 -1.615
Mean
1.066 0.478
-0
A 5
0.00
0.00
0.00
5 -0.850
Standard Deviation
1.041 0.486
-3
-3.5
0.0o
o.00
0.00
Skewness
0.395
-2
-1.5
-2.5
-1.75
0.00
0.00
0.00
0.00
0.00
0.00
16 0.135
Kurtosis
3.970
-1
-1.25
3.81
3.67
3.67
y5 0.425
Dispersion
-0.75
-0.875
1.15
1.11
4.78
50 0.425
Standard Deviation
-0.5
-0.625
2.18
2.10
6.87
75 1.445
Deviation from Normal
-0.25
-0.375
1.99
1.91
8.79
84 1.900
0
0.25
-0.125
0.125
3.41
3.82
3.29
3.68
12.08
1535
95 2.810
0.5
0.375
6.88
6.63
22.38
99 4.000
0.75
0.625
14.21
13.69
36.08
Graphic Phi Parameters Inman
Folk & Ward
1 0.875 16.Ss 15.98 52.os
1125
1.125
14.30
13.78
65.83
1952
1957
1.5
1.375
8.62
"0
74.13
1.75
1.625
3.21
3.09
77.23
Mean
1.017
0.960
2
2.25
1.875
2.125
6.59
4.52
6.35
4.36
83.58
8.
794
Standard Deviation
0.883
0.996
2.5
2.375
3.97
3.83
91.76
Skewness (1)
0.195
0.135
2.75
2.625
2.77
2.67
94.43
Skewness (2)
0.153
3
2.875
0.79
0.76
95.20
Kurtosis
1.074
1.471
3.25
3.125
0.97
0.94
96.13
3.5
3.375
1.20
1.15
57.28
3.75
3.625
0.80
0.77
98.05
4
3.875
0.46
0.44
98.49
>4.0
4.25
1.57
1.51
100.00
Grain Size Distribution
Grain Size (mm)
1. -3 -Z -1 u 1 Z 3 4
Grain Size (0)
Project 2403-M
Location Buxton, NC
Date Apr 06 2021
Station BUX-36
Sample 10 ft COMP
Mean 0.268 mm
STD 0.417 mm
Skewness -0.898
USCS Wentworth
SP
Medium Sand
Fine Sand
Poorly Sorted
Poorly Graded
Coarse Skewed
Mesokurtic
Total weight (gram)
100.46
% finer than 0.0625 mm (dry) 2.54
% gravel (dry)
0.00
% granule (dry)
4.92
CaCO3
11.1
Class Limits Mid Point
Weight
Weight% Cumm.Wt%
Percentiles
Moment Measures
(phi) (mm)
(0
(0)
(gram)
+ -1.650
Mean
1.899 0.268
-0
A 5
0.00
0.00
0.00
5 -1.225
Standard Deviation
1.898 0.417
a
-3.5
0.00
0.00
0.00
Skewness
-0.898
-2
-1.1
-2.5
-1.75
0.00
0.00
0.00
0.02
0.00
0.00
16
Kurtosis
3.358
-1
-1.25
4.94
4,g2
qgp
11s9
25 1.155
Dispersion
-0.75
-0.875
1.18
1.17
6.09
50 2.100
Standard Deviation
-0.5
-0.625
1.68
1.67
7.16
75 2.660
Deviation from Normal
-0.25
-0.375
1.29
1.28
9.05
84 2.810
0
0.25
-0.125
0.125
1.72
1.42
1.71
1.41
10.76
12.17
95 3.190
0.5
0.375
1.58
1.57
13.75
99 4.000
0.75
0.625
2.63
2.62
16.36
Graphic Phi Parameters Inman
Folk & Ward
1 0.875 3.19 3.18 19.54
1125
1.125
4.57
4.55
24.09
1952
1957
1.5
1.375
7.07
7.04
31.13
1.75
1.625
4.66
4.64
35.77
Mean
1.700
1.833
2
L875
s.5s
45.32
Standard Deviation
1.110
1.224
2..5
2.5
2.375
2.375
5.26
5.55
5.55
5.52
5.52
50.56
56.08
Skewness (1)
-0.360
-0.433
2.75
2.625
16.83
16.75
72.83
Skewness (2)
-1.007
3
2.875
15.30
15.23
88.06
Kurtosis
0.989
1.202
3.25
3.125
6.58
6.55
94.61
3.5
3.375
1.53
1.52
56.14
3.75
3.625
0.71
0.71
96.84
4
3.875
0.62
0 62
97.46
>4.0
4.25
2.55
2.54
100.00
1 -3 -Z -1 u 1 Z 3 4
Grain Size (0)
Project 2403-M
Location Buxton, NC
Date Apr 06 2021
Station BUX-37
Sample 10 ftCOMP
Mean 0.512 mm
STD 0.282 mm
Skewness -0.665
USCS Wentworth
SP
Coarse Sand
Medium Sand
Poorly Sorted
Poorly Graded
Coarse Skewed
Mesokurtic
Total weight (gram)
96.89
% finer than 0.0625
mm (dry) 1.65
% gravel (dry)
2.25
% granule (dry)
15.28
CaCO3
22.5
Class Limits Mid Point
Weight
Weight% Cumm.Wt%
Percentiles
Moment Measures
(phi) (mm)
(0
(0)
(gram)
1 4.055
Mean
0.966 0.512
-0
-0.5
0.00
0.00
0.00
5 -3.125
Standard Deviation
1.827 0.282
-3
-1.5
2.18
2.25
2.25
Skewness
-0.665
-2
-1.5
-2.5
-1.25
2.76
7.30
2.13
2.40
12.53
16 -1.400
Kurtosis
2.599
-1
-1.25
4.97
4.97
5.13
17.53
y5 -0.535
Dispersion
-0.75
-0.875
2.90
2.99
20.52
50 1.415
Standard Deviation
-0.5
-0.625
3.47
3.58
24.10
75 2.125
Deviation from Normal
-0.25
-0.375
2.35
2.43
26.53
84 2.425
0
0.25
-0.125
0.125
2.54
1.73
2.62
1.78
29.15
30.93
95 3.305
0.5
0.375
1.92
1.98
32.91
99 4.000
0.75
0.625
2.83
2.92
35.82
Graphic Phi Parameters Inman
Folk & Ward
1 0.57s 3.14 3.24 3s.os
1.25
1.125
4.13
4.26
43.32
1952
1957
1.5
1.375
5.75
5.93
49.25
1.75
1.625
4.66
4.81
54.06
Mean
0.512
0.813
2
11.36
11.72
Standard Deviation
1.912
1.930
2..5
2.5
2.125
2.375
2.375
7.34
7.34
7.57
7.57
75.08
82.65
82.fi5
Skewness (1)
-0.472
-0.442
2.75
2.625
6.45
6.66
89.31
Skewness (2)
-0.693
3
2.875
3.20
3.30
92.61
Kurtosis
0.681
0.991
3.25
3.125
1.44
1.48
94.10
3.5
3.375
1.23
1.27
95.36
3.75
3.625
1.49
1.54
96.90
4
3.875
1.41
1.45
98.35
>4.0
4.25
1.60
1.65
100.00
Grain Size Distribution
Grain Size (mm)
V -3 -Z -1 u .1 Z 3 4
Grain Size (0)
Project 2403-M
Location Buxton, NC
Date Apr 06 2021
Station BUX-38
Sample 10 ftCOMP
Mean 0.574 mm
STD 0.530 mm
Skewness 0.822
USCS Wentworth
SP
Coarse Sand
Medium Sand
Moderately Sorted
Poorly Graded
Fine Skewed
Leptokur6c
Total weight (gram)
101.68
% finer than 0.0625
mm (dry) 0.90
% gravel (dry)
0.00
% granule (dry)
3.62
CaCO3
11.4
Class Limits Mid Point
Weight
Weight% Cumm.Wt%
Percentiles
Moment Measures
(phi) (mm)
(0
(0)
(gram)
1 -1.610
Mean
0.801 0.574
-0
-0.5
0.00
0.00
0.00
5 -0.880
Standard Deviation
0.915 0.530
a
J.5
0.00
o.00
0.00
Skewness
0.822
-2
-1.5
-2.5
-1.75
0.00
0.00
0.00
0.00
0.00
0.00
i6 -0.015
Kurtosis
&957
-1
-1.25
3.68
3.62
3.62
y5 0.320
Dispersion
-0.75
-0.875
1.42
1.40
5.02
50 0.670
Standard Deviation
-0.5
-0.625
2
2.53
7.54
75 0.995
Deviation from Normal
-0.25
-0.375
2.33.57
2.29
9.83
84 1.155
0
0.25
-0.125
0.125
4.19
4.64
4.12
4.56
13.96
18.52
95 2.535
0.5
0.375
8.55
8.41
26.93
99 3.815
0.75
0.625
19.43
19.11
46.04
Graphic Phi Parameters Inman
Folk & Ward
1 o.87s 21.65 21.29 67.33
75
1.125
16.08
15.81
83.14
1952
1957
5
1.375
6.94
6.83
89.97
1.75
1.625
1.126
1.14
91.11
Mean
0.570
0.603
2
2.23
93.30
Standard Deviation
0.585
0.810
2.25
2.5
2.5
2.125
2125
2.375
0.68
0.63
0.17
o.67
o.s2
53.97
:1
Skewness (1)
-0.171
.0.039
2.75
2.625
0.66
0.65
95.24
Skewness (2)
0.269
3
2.875
0.42
0.41
96.65
Kurtosis
1.919
2.073
3.25
3.125
1.02
1.00
96.66
3.5
3.375
1.22
1.20
57.86
3.75
3.625
0.87
0.86
98.71
4
3.875
0.39
0.38
99.10
>4.0
4.25
0.92
0.90
100.00

Grain Size Distribution
Grain Size Distribution
V -3 -Z -1 u 1 Z 3 4
Grain Size (�)
Project 2403-M
Location Buxton, NC
Date Apr 06 2021
Station BUX-39
Sample 10 ft COMP
Mean 0.579 mm
STD 0.531 mm
Skewness 0.771
USCS Wentworth
SP
Coarse Sand
Medium Sand
Moderately Sorted
Poorly Graded
Fine Skewed
Leptokur6c
Total weight (gram)
105.50
% finer than 0.0625 mm (dry) 0.94
% gravel (dry)
0.00
% granule (dry)
3.84
CaCO3
15.5
Class Limits Mid Point
Weight
Weight% Cumm.Wt%
Percentiles
Moment Measures
(phi) (mm)
(0
(0)
(gram)
1 -1.620
Mean
0.788 0.579
-0
-0.5
0.00
0.00
0.00
5 .935
Standard Deviation
0.912 0.531
a
-3.5
0.00
tloo
0.00
Skewness
0.771
2
-1.5
2.5
-1.75
0.00
0.00
0.00
0.84
0.00
15 -0.oas
Kurtosis
5.963
-1
-1.25
4.05
3.84
3.84
3.84
25 0.290
Dispersion
-0.75
-0.875
1.45
1.37
5.21
50 0.675
Standard Deviation
-0.5
-0.625
2.83
2.68
7.90
75 1.000
Deviation from Normal
-0.25
-0.375
2.54
2.41
10.30
84 1.140
0
0.25
-0.125
0.125
4.39
5.10
4.16
4.83
14.46
19.30
95 2.405
0.5
0.375
9.01
8.54
27.84
99 3.840
0.75
0.625
19.03
18.04
45.88
Graphic Phi Parameters Inman
Folk & Ward
1 0.875 21.49 20.37 6s.25
1125
1.125
18.37
17.41
83.66
1952
1957
1.5
1.375
6.94
6.58
90.24
1.75
1.625
1.2s
1.22
91.46
Mean
0.548
0.590
2
2.25
s3.59
Standard Deviation
0.593
0.802
2..5
2.5
2.875
2.125
2.375
0.87
0.55
0.12
0.52
0.52
94.94
94.94
Skewness (1)
-0.215
-0.090
2.75
2.625
0.59
0.56
95.50
Skewness (2)
0.101
3
2.875
0.50
0.47
96.97
Kurtosis
1.819
1.928
3.25
3.125
1.08
1.02
97.00
3.5
3.375
1.04
0.99
97.98
3.75
3.625
0.69
0 65
98.:4
4
3.875
0.45
0.43
99.06
>4.0
4.25
0.99
0.94
100.00
Grain Size Distribution
Grain Size (mm)
1. -3 -Z -1 u 1 Z 3 4
Grain Size (0)
Project 2403-M
Location Buxton, NC
Date Apr 06 2021
Station BUX-40
Sample 10 ft COMP
Mean 0.681 mm
STD 0.421 mm
Skewness 0.200
USCS Wentworth
SW Coarse Sand
Medium Sand Poorly Sorted
Well Graded Symmetrical
Very Platykurtic
Total weight (gram) 70.35
% finer than 0.0625 mm (dry) -2.15
% gravel (dry) 0.00
% granule (dry) 12.57
CaCO3 16.5
Class Limits Mid Point
Weight
Weight% Cumm.Wt%
Percentiles
Moment Measures
(phi) (mm)
(0
(0)
(gram)
1 -1.710
Mean
0.554 0.681
-0
-3
-0.5
-3.5
0.00
0.00
0.00
0.00
0.00
0.00
5 -1.545
Standard Deviation
1.249 0.421
-2
-2.5
000
0.00
0.00
15 -0.970
Skewness
0.200
-1.5
-1.75
0.00
0.00
0.00
y5 -0.615
Kurtosis
1.645
-1
-1.25
8.84
12.57
12.57
Dispersion
-0.75
-0.875
3.58
5.09
17.65
so 0.615
Standard Deviation
-0.5
-0.625
5.40
7.s8
25.33
75 1.27o
Deviation from Normal
-0.25
-0.375
4.27
6.08
31.41
84 2.205
0
0.25
-0.125
0.125
4.49
4.44
6.38
6.31
37.79
44.10
95 2.930
0.5
0.375
2.90
4.12
48.22
99 3.525
0.75
0.625
5.91
8.41
56.63
Graphic Phi Parameters Inman
Folk & Ward
1 0.875 6.27 8.92 65.55
1.25
1.125
5.49
7.80
73.34
1952
1957
1.5
1.375
3.98
5.66
79.01
1.75
1.625
1.74
2.47
81.48
Mean
0.618
0.565
2
2..5
2.125
2.375
1.06
1.63
1.50
2.32
62.98
85.04
Standard Deviation 1.587
1.472
2.5
2.375
1.63
2.32
87.3fi
Skewness (1)
0.099
0.102
2.75
2.625
3.58
5.09
92.45
Skewness (2)
0.146
3
2.875
2.78
3.96
96.41
Kurtosis
0.409
0.973
3.25
3.125
2.08
2.96
99.36
3.5
3.375
0.74
1.06
100.42
3.75
3.625
0.83
1.18
lot 60
4
3.875
0.39
0.55
102.15
>4.0
4.25
-1.51
-2.15
100.00
1 -3 -Z -1 u 1 Z 3 4
Grain Size (0)
Project 2403-M
Location Buxton, NC
Date Apr 06 2021
Station BUX-41
Sample 10 ftCOMP
Mean 0.536 mm
STD 0.539 mm
Skewness -0.132
USCS Wentworth
SP
Coarse Sand
Medium Sand
Moderately Sorted
Poorly Graded
Symmetrical
Mesokurtic
Total weight (gram)
103.13
% finer than 0.0625
mm (dry) -0.77
% gravel (dry)
0.00
% granule (dry)
3.79
CaCO3
15.0
Class Limits Mid Point
Weight
Weight% Cumm.Wt%
Percentiles
Moment Measures
(phi) (mm)
(0
(0)
(gram)
1 -1.615
Mean
0.900 0.536
-0
-0.5
0.00
0.00
0.00
5 -0.92o
Standard Deviation
0.892 0.539
a
J.5
0.00
o.00
0.00
Skewness
-0.132
-2
-1.5
-2.s
-1.75
o.00
0.00
0.00
0.00
0.00
0.00
15 o.a4o
Kurtosis
3.169
-1
-1.25
3.91
3.79
3.79
25 0.375
Dispersion
-0.75
-0.875
1.47
1.43
5.22
50 0.375
Standard Deviation
-0.5
-0.625
2.65
2.57
7.79
75 1.210
Deviation from Normal
-0.25
-0.375
1.82
1.77
9.56
84 1.660
0
0.25
-0.125
0.125
3.75
4.52
3.64
4.38
13.19
17.58
95 2.470
0.5
0.375
7.81
7.57
25.15
99 3.350
0.75
0.625
15.39
14.92
40.07
Graphic Phi Parameters Inman
Folk & Ward
1 o.87s 17.31 is.7a 56a
1.25
1.125
16.39
15.89
72.75
1952
1957
1.5
1.375
8.53
8.27
81.02
1.75
1.625
3.04
2.95
83.96
Mean
0.850
0.827
2
.5
5.16
5.60
88.9s
Standard Deviation
0.810
0.919
2.
2.5
2.5 2.31275
5
3.33
2.73
3.
2.65
92.19
94.85
Skewness (1)
0.086
0.042
2.75
2.625
2.36
2.28
97.13
Skewness (2)
-0.006
3
2.875
0.78
0.76
97.89
Kurtosis
1.093
1.664
3.25
3.125
0.91
0.88
98.77
3.5
3.375
1.14
1.11
99.88
3.75
3.625
0.59
0.57
100.45
4
3.875
0.34
0.32
100.77
>4.0
4.25
-0.80
-0.77
100.00
Grain Size Distribution
Grain Size (mm)
1. -3 -Z -1 u .1 Z 3 4
Grain Size (0)
Project 2403-M
Location Buxton, NC
Date Apr 06 2021
Station BUX-42
Sample 10 ftCOMP
Mean 0.596 mm
STD 0.490 mm
Skewness -1.554
USCS Wentworth
SP
Coarse Sand
Medium Sand
Poorly Sorted
Poorly Graded
Strongly Coarse Skewed
Leptokur6c
Total weight (gram)
106.42
% finer than 0.0625
mm (dry) 0.04
% gravel (dry)
0.00
% granule (dry)
10.13
CaCO3
12.6
Class Limits Mid Point
Weight
Weight% Cumm.Wt%
Percentiles
Moment Measures
(phi) (mm)
(0
(0)
(gram)
1 -3.215
Mean
0.746 0.596
-0
-0.5
0.00
0.00
0.00
5 -2.011
Standard Deviation
1.028 0.490
-3
J.5
0.00
0.o0
0.00
Skewness
-1.554
-2
-1.5
-2.5
-1.25
3.42
3.28
2.34
5.79
15
Kurtosis
5.470
-1
-1.25
4.42
4.62
4.34
10.13
0.13
25 0.460
0.460
Dispersion
-0.75
-0.875
0.75
0.70
10.83
50 0.915
Standard Deviation
-0.5
-0.625
1.55
1.46
12.29
75 1.210
Deviation from Normal
-0.25
-0.375
1.33
1.25
13.53
84 1.315
0
0.25
-0.125
0.125
2.01
2.48
1.89
2.33
15.42
17.75
95 1.680
0.5
0.375
4.16
3.91
21.67
99 2.325
0.75
0.625
10.25
9.63
31.29
Graphic Phi Parameters Inman
Folk & Ward
1 0.875 16.21 15.24 46.53
1.25
1.125
22.79
21.41
67.94
1952
1957
1.5
1.375
22.38
21.03
88.98
1.75
1.625
5.55
5.22
94.20
Mean
0.625
0.722
2
1.875
3.7s
3.56
s7.76
Standard Deviation
0.690
0.904
2.25
2.5
2.125
2.375
0.93
0.49
0.87
0.46
98.63
s9.10
Skewness (1)
-0.420
-0.503
2.75
2.625
0.34
0.32
99.42
Skewness (2)
-1.565
3
2.875
0.19
0.18
99.60
Kurtosis
1.674
2.016
3.25
3.125
0.17
0.16
99.76
3.5
3.375
0.12
0.11
99.86
3.75
3.625
0.06
0.06
99.92
4
3.875
0.04
0.04
99.96
>4.0
4.25
0.04
0.04
100.00

Grain Size Distribution
Grain Size Distribution
-3 -Z -1 U 1 Z 3 a
Grain Size (r )
Project 2403-M
Location Buxton, NC
Date Apr 06 2021
Station BUX-43
Sample 10 ft COMP
Mean 0.552 mm
STD 0.467 mm
Skewness -1.130
USCS Wentworth
SP
Coarse Sand
Medium Sand
Poorly Sorted
Poorly Graded
Coarse Skewed
Leptokur6c
Total weight (gram)
103.90
% finer than 0.0625 mm (dry) 0.49
% gravel (dry)
0.91
% granule (dry)
6.78
CaCO3
22.1
Class Limits Mid Point
Weight
Weight% Cumm.Wt%
Percentiles
Moment Measures
(phi) (mm)
(0
(0)
(gram)
1 -3.440
Mean
0.858 0.552
A
a.5
0.00
0.00
0.00
5 -1.575
Standard Deviation
1.100 0.467
-3
-3.5
0.85
0.91
0.91
Skewness
-1.130
-2
-1.5
-2.5
-1.25
1.24
1.33
1.42
3.33
16 -0.160
Kurtosis
5.552
-1
-1.25
a.aa
4.20
4.17
7.70
7.70
25 0.315
Dispersion
-0.75
-0.875
1.44
1.39
9.09
50 o.sso
Standard Deviation
-0.5
-0.625
2.29
2.20
113.29
75 1.400
Deviation from Normal
-0.25
-0.375
2.08
2.01
13.30
84 1.645
0
0.25
-0.125
0.125
3.29
4.05
3.16
3.90
16.46
20.36
95 1.980
0.5
0.375
6.38
6.14
26.49
99 2.970
0.75
0.625
10.04
9.66
36.18
Graphic Phi Parameters Inman
Folk & Ward
1 0.875 0.07 s.6s 45s5
1.25
1.125
12.53
12.06
57.90
1952
1957
1.5
1.375
16.83
16.19
74.10
1.75
1.625
9.49
9.13
83.23
Mean
0.742
0.815
2
2.25
1.875
2.125
10.69
3.63
t0.29
3.50
93.52
97.01
Standard Deviation
0.903
0.990
2.5
2.375
1.03
0.99
s8.00
Skewness (1)
-0.241
-0.334
2.75
2.625
0.63
0.61
98.812
Skewness (2)
-0.839
3
2.875
0.32
0.30
98.s2
Kurtosis
0.970
1.343
3.25
3.125
0.23
0.22
89.14
3.5
3.375
0.19
0.18
98.32
3.75
3.625
0.11
0.10
as.42
4
3.875
0.09
0.08
99.51
>4.0
4.25
0.51
0.49
100.00
Grain Size Distribution
Grain Size (mm)
-3 -Z -1 u .1 Z 3 4
Grain Size (0)
Project 2403-M
Location Buxton, NC
Date Apr 06 2021
Station BUX-44
Sample 10 ft COMP
Mean 0.557 mm
STD 0.386 mm
Skewness -1.374
USCS Wentworth
SP
Coarse Sand
Medium Sand
Poorly Sorted
Poorly Graded
Strongly Coarse Skewed
Leptokur6c
Total weight (gram)
108.94
% finer than 0.0625 mm (dry) 0.00
% gravel (dry)
2.34
% granule (dry)
8.54
CaCO3
17.9
Class Limits Mid Point
Weight
Weight% Cumm.Wt%
Percentiles
Moment Measures
(phi) (mm)
(0
(0)
(gram)
1 1.075
Mean
0.843 0.557
-0
-0.5
0.00
0.00
0.00
5 .2.865
Standard Deviation
1.375 0.386
-3
-3.5
2.55
2.34
2.1
Skewness
-1.374
-2
-1.5
-2.5
-1.75
4.56
2.88
2.14
2.71
6.53
9.17
16 -0.350
Kurtosis
4.586
-1
-1.25
1.86
1.71
10.88
25 0.260
Dispersion
-0.75
-0.875
1.22
1.12
12.00
50 1.W5
Standard Deviation
-0.5
-0.625
2.21
2.03
14.03
75 1.685
Deviation from Normal
-0.25
-0.375
1.85
1.70
15.72
84 1.845
0
0.25
-0.125
0.125
3.31
3.79
3.04
3.48
18.76
22.24
95 2.265
0.5
0.375
5.53
5.08
27.32
99 2.595
0.75
0.625
8.62
7.91
35.23
Graphic Phi Parameters Inman
Folk & Ward
1 0.875 8.59 7.89 43.12
1.25
1.125
9.47
8.69
51.81
1952
1957
1.5
1.375
12.52
11.49
63.30
1.75
1.625
9.16
8.41
7171
Mean
0.748
0.857
2
17.63
1
85.59
Standard Deviation
1.097
1.326
2..5
2.5
2.125
2.375
2.375
4.70
4.70
7.00
'
4.31
82.59
96.91
Skewness (1)
-0.298
-0.417
2.75
2.625
2.58
2.37
99.27
Skewness (2)
-1.253
3
2.875
0.49
0.45
99.72
Kurtosis
1.337
1.475
3.25
3.125
0.17
0.16
99.88
3.5
3.375
0.08
0.07
99.95
3.75
3.625
0.05
0.05
100.00
4
3.875
0.00
0.00
100.00
>4.0
4.25
0.00
0.00
100.00
-3 -Z -1 U 1 Z 3 a
Grain Size (0)
Project 2403-M
Location Buxton, NC
Date Apr 06 2021
Station ALL
Sample 10 ftCOMP
Mean 0.517 mm
STD 0.426 mm
Skewness -0.489
USCS Wentworth
SP
Coarse Sand
Medium Sand
Poorly Sorted
Poorly Graded
Coarse Skewed
Leptokur6c
Total weight (gram)
100.11
% finer than 0.0625
mm (dry) 0.59
% gravel (dry)
0.57
% granule (dry)
7.11
CaCO3
15.6
Class Limits Mid Point
Weight
Weight% Cumm.Wt%
Percentiles
Moment Measures
(phi) (mm)
(0
(0)
(gram)
1 -3.245
Mean
0.951 0.517
-0
-0.5
0.00
0.00
0.00
5 -1.550
Standard Deviation
1.232 0.426
-3
-1.5
0.57
0.57
0.57
Skewness
-0.489
-2
-1.5
-2.5
-1.75
1.68
0.93
i.68
0.93
2.25
3.18
16 -0.240
Kurtosis
4.107
-1
-1.25
4.50
4.50
7.68
25 0.305
Dispersion
-0.75
-0.875
1.66
1.65
9.33
so 0.880
Standard Deviation
-0.5
-0.625
2.68
2.68
12.01
75 1.535
Deviation from Normal
-0.25
-0.375
2.19
2.18
14.19
84 1.920
0
0.25
-0.125
0.125
3.31
3.60
3.31
3.59
17.50
21.09
95 2.765
0.5
0.375
5.47
5.47
26.56
99 3.625
0.75
0.625
10.83
10.82
37.38
Graphic Phi Parameters Inman
Folk & Ward
1 0.875 12.45 12.44 49.82
1.25
1.125
12.41
12.40
62.22
1952
1957
1.5
1.375
9.96
9.94
72.16
1.75
1.625
4.40
4.39
76.55
Mean
0.840
0.853
2
2.25
1.875
2.125
6.78
3.73
6.78
3.73
83.33
87.06
Standard Deviation
1.080
1.194
2.5
2.375
2.86
2.86
Ss.92
Skewness (1)
-0.037
-0.082
2.75
2.625
3.68
3.68
93.59
Skewness (2)
-0.252
3
2.875
2.48
2.47
96.07
Kurtosis
0.998
1.438
3.25
3.125
1.46
1.46
97.53
3.5
3.375
0.85
0.85
98.38
3.75
3.625
0.62
O.62
99.00
4
3.875
0.42
0.42
99.41
>4.0
4.25
0..
0.59
100.00