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Home My WebLink About06 - Buxton - AppA-Attachment 3CAPPENDIX A ATTACHMENT 3C Grain Size Distributions (GSDs) Composite Samples - Upper 8 ft of Section by Core Coastal Science & Engineering [2403M-Task 2-Appendix A] Geotechnical Data Analysis Buxton, Dare County, North Carolina - THISPAGEINTENTIONALLYLEFTBLANK - Grain Size Distribution Grain Size (mm) 10016 8 4 2 1 0.5 0.25 0.125 0.0625 Project 2403-M Location Buxton, NC 90 .. ;. _.. ...... ._ ._.._... Date Oct 07 2020 80 .. ;. Station BUX-25 I Sample 8 ft COMP 70 .... 60 - Mean 0.424 mm \ STD 0.641 mm o> 50 Skewness -2.210 3:: 40..: _. _... USCS Wentworth 30.... .�...:...... .....:... .-...-._ SP Medium Sand Medium Sand Moderately Well Sorted 20 .... Poorly Graded Strongly Coarse Skewed Very Leptokur6c 10 .... Total weight (gram) 107.61 - %finer than 0.0625 mm (dry) 0.01 0 4 -3 -2 -1 0 1 2 3 4 % gravel (dry) 0.00 Grain Size (�) % granule (dry) 1.62 CaCO3 15.0 Class Limits Mid Point Weight Weight% Cumm.Wt% Percentiles Moment Measures (phi) (mm) (0 (0) (gram) 1 -1.725 Mean 1.239 0.424 -0 A 5 0.00 0.00 0.00 5 0.070 Standard Deviation 0.641 a -3.5 0.00 tlgo 0.00 Skewness 2.210 -2.210 -2 -1.5 -2.5 -1.75 0.69 0.35 0.33 0.33 0.96 0.96 is o.ss5 Kurtosis 12.441 -1 -1.25 0.11 0.66 1.62 y5 0.880 Dispersion -0.75 -0.875 0.29 0.27 1.89 50 1.220 Standard Deviation -0.5 -0.625 0.56 0.52 2.41 75 1.490 Deviation from Normal -0.25 -0.375 0.63 0.58 3.00 84 1.605 0 0.25 -0.125 0.125 0.90 1.61 0.84 1.49 3.83 5.32 95 1.825 0.5 0.375 2.83 2.63 7.95 99 2.125 0.75 0.625 5.03 4.68 12.63 Graphic Phi Parameters Inman Folk & Ward 1 0.875 12.83 11.92 24.5s 1125 1.125 16.33 15.18 39.74 1952 1957 1.5 1.375 28.51 26.50 s6.23 1.75 1.625 20.69 19.23 85.46 Mean 1.150 1.173 2 1.875 1z.99 12.07 97.53 Standard Deviation 0.455 0.493 2..5 z.s 2.375 2.375 o.aa 04: 1.48 o.45 99.01 ss.4s Skewness (1) -0.154 -0.232 2.75 2.625 0.21 0.19 99.65 Skewness (2) -0.599 3 2.875 0.12 0.11 99.76 Kurtosis 0.929 1.179 3.25 3.125 0.07 0.06 99.82 3.5 3.375 0.07 0.07 99.89 3.75 3.625 0.08 0.08 99.97 4 3.875 0.02 0.02 99.99 >4.0 4.25 0.01 0.01 100.00 Grain Size Distribution Grain Size (mm) 1. -3 -L -1 U 1 L 3 4 Grain Size (�) Project 2403-M Location Buxton, NC Date Apr 06 2021 Station BUX-35 Sample 8 ft COMP Mean 0.343 mm STD 0.494 mm Skewness -0.422 USCS Wentworth SP Medium Sand Fine Sand Poorly Sorted Poorly Graded Symmetrical Mesokurtic Total weight (gram) 103.30 % finer than 0.0625 mm (dry) 0.93 % gravel (dry) 0.00 % granule (dry) 2.18 CaCO3 13.9 Class Limits Mid Point Weight Weight% Cumm.Wt% Percentiles Moment Measures (phi) (mm) (0 (0) (gram) 1 -1.520 Mean 1.543 0.343 -0 As 0.00 0.00 0.00 5 -0.415 Standard Deviation 1.0.494 -3 -3.5 0.00 0.00 0.00 Skewness -0.422 422 z -1.5 2.6 -1.75 0.00 0.00 0.00 0.00 0.00 0.00 1s 0.470 Kurtosis 3.244 -1 -1.25 2.25 2.18 2.18 25 0.730 Dispersion -0.75 -0.875 0.70 0.67 2.85 so 1.585 Standard Deviation -0.5 -0.625 1.25 1.21 4.07 75 2.200 Deviation from Normal -0.25 -0.375 1.15 1.11 5.18 84 2.395 0 0.25 -0.125 0.125 1.95 2.19 1.89 2.12 7.07 9.19 95 2.720 0.5 0.375 3.96 3.84 13.02 99 3.810 0.75 0.625 8.19 7.93 20.95 Graphic Phi Parameters Inman Folk & Ward 1 0.875 9.77 9.46 30.41 1.25 1.125 9.30 9" 39.41 1952 1957 1.5 1.375 7.50 7.26 46.67 1.75 1.525 4.09 3.96 50.64 Mean 1.432 1.483 2 2.25 1.875 2.125 11.16 10.40 10.81 10.07 61.44 713 Standard Deviation 0.963 0.956 2.5 2.375 12.12 11.74 83.51 .24 Skewness (1) -0.158 -0.217 2.75 2.625 11.09 10.73 93.97 Skewness (2) -0.449 3 2.875 2.82 2.73 96.71 Kurtosis 0.629 0.874 3.25 3.125 0.93 0.90 97.61 3.5 3.375 0.75 0.73 98.33 3.75 3.625 0.48 0.47 98.80 4 3.875 0.28 0.27 99.07 >4.0 4.25 0.96 0.93 100.00 Grain Size Distribution 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 8 ft COMP Mean 0.241 mm STD 0.401 mm Skewness -0.603 USCS Wentworth SP Fine Sand Fine Sand Poorly Sorted Poorly Graded Coarse Skewed Mesokurtic Total weight (gram) 100.55 % finer than 0.0625 mm (dry) 7.72 % gravel (dry) 0.00 % granule (dry) 3.82 CaCO3 12.1 Class Limits Mid Point Weight Weight% Cumm.Wt% Percentiles Moment Measures (phi) (mm) (0 (0) (gram) 1 -1.620 Mean 2.051 0.241 -0 -0.5 0.00 0.00 0.00 5 -0.835 Standard Deviation 1.318 0.401 a J.5 0.00 o.00 0.00 Skewness -0.603 -2 -1.5 -2.5 -1.25 0.00 0.00 0.00 16 0.715 Kurtosis 3.181 -1 -1.25 3.94 3.84 3.82 3.82 3.82 3.82 25 1.205 Dispersion -0.75 -0.875 0.95 0.94 4.76 50 2.130 Standard Deviation -0.5 -0.625 1.43 1.43 6.19 75 2.745 Deviation from Normal -0.25 -0.375 1.14 1.13 7.32 84 2.995 0 0.25 -0.125 0.125 1.64 1.44 1.63 1.43 8.95 10.38 95 4.000 0.5 0.375 1.71 1.70 12.08 99 4.000 0.75 0.525 2.75 2.75 14.83 Graphic Phi Parameters Inman Folk & Ward 1 0.875 3.29 3.28 18.1 1.25 1.125 4.61 4.59 22.59 1952 1957 1.5 1.375 7.09 7.05 29.74 1.75 1.625 41 4.85 34.59 Mean 1.855 1.947 2 9.78 9.72 44.31 Standard Deviation 1.140 1.303 2..5 2.5 2.125 2.375 2.375 5.46 5.46 5.43 5.43 55.32 55.32 Skewness (1) -0.241 -0.234 2.75 2.625 13.85 13.77 69.09 Skewness (2) -0.480 3 2.875 12.33 12.26 81.36 Kurtosis 1.121 1.287 3.25 3.125 5.56 5.53 86.89 3.5 3.375 1.91 1.90 88.79 3.75 3.625 1.51 1.50 90.29 4 3.875 2.00 1.99 92.28 >4.0 4.25 7.76 7.72 100.00 Grain Size Distribution Grain Size (mm) 1. -3 -L -1 U 1 L 3 4 Grain Size (0) Project 2403-M Location Buxton, NC Date Apr 06 2021 Station BUX-37 Sample 8 ft COMP Mean 0.457 mm STD 0.288 mm Skewness -0.384 USCS Wentworth SP Medium Sand Medium Sand Poorly Sorted Poorly Graded Symmetrical Plalykurtic Total weight (gram) 83.38 % finer than 0.0625 mm (dry) 5.02 % gravel (dry) 1.31 % granule (dry) 12.58 CaCO3 25.3 Class Limits Mid Point Weight Weight% Cumm.Wt% Percentiles Moment Measures (phi) (mm) (0 (0) (gram) 1 -3.735 Mean 1.128 0.457 -0 -0.5 0.00 0.00 0.00 5 -2.630 Standard Deviation 1.795 0.288 -3 J.5 1.09 1.31 1.31 Skewness -0.384 -2 -1.5 -2.5 -1.75 3.54 1.38 4.24 1.66 5.55 7.20 i6 -1.050 Kurtosis 2.527 -1 -1.25 5.58 6.69 13.89 25 -0.445 Dispersion -0.75 -0.875 3.32 3.98 17.87 50 1.345 Standard Deviation -0.5 -0.625 4.06 4.87 22.74 75 2.245 Deviation from Normal -0.25 -0.375 2.61 3.13 25.87 84 2.625 0 0.25 -0.125 0.125 2.87 1.81 3.44 2.17 29.32 31.48 95 3.875 0.5 0.375 1.84 2.20 33.69 99 4.000 0.75 0.525 2.52 3.14 35.82 Graphic Phi Parameters Inman Folk & Ward 1 0.57s 2.s9 3.47 40.29 1.25 1.125 3.74 4.49 44.78 1952 1957 1.5 1.375 5.00 5.99 50.77 1.75 1.525 3.67 4.40 55.17 Mean 0.788 0.973 2 2.25 1s75 2.125 8.z1 5.92 s.84 7.10 s5.01 72.11 Standard Deviation 1.837 1.904 2.5 2.375 4.94 5.93 78.03 Skewness (1) -0.303 -0.263 2.75 2.625 4.97 5.96 83.99 Skewness (2) -0.393 3 2.875 2.96 3.55 87.54 Kurtosis 0.770 0.991 3.25 3.125 1.60 1.91 89.45 3.5 3.375 1.46 1.76 91.20 3.75 3.625 1.49 1.79 92.99 4 3.875 1.66 1.98 94.98 >4.0 4.25 4.19 5.02 100.00 Grain Size Distribution Grain Size Distribution 1 -3 -Z -1 u 1 Z 3 4 Grain Size (r ) Project 2403-M Location Buxton, NC Date Apr 06 2021 Station BUX-38 Sample 8 ft COMP Mean 0.503 mm STD 0.498 mm Skewness 0.534 USCS Wentworth SP Coarse Sand Medium Sand Poorly Sorted Poorly Graded Fine Skewed Leptokur6c Total weight (gram) 102.22 % finer than 0.0625 mm (dry) 1.31 % gravel (dry) 0.00 % granule (dry) 3.50 CaCO3 10.8 Class Limits Mid Point Weight Weight% Cumm.Wt% Percentiles Moment Measures (phi) (mm) (0 (0) (gram) 1 -1.605 Mean 0.992 0.503 -0 -0.5 0.00 0.00 0.00 5 -o.e4o Standard Deviation 1.007 0.498 a -3.5 0.00 o.00 0.00 Skewness 0.534 -2 -1.5 -2.5 -1.75 0.00 0.00 0.00 0.00 0.00 0.00 16 0.110 Kurtosis 4.372 -1 -1.25 3.58 3.50 3.50 y5 0.405 Dispersion -0.75 -0.875 1.22 1.19 4.69 50 0.405 Standard Deviation -0.5 -0.625 2.22 2.17 6.86 75 1.250 Deviation from Normal -0.25 -0.375 1.99 1.95 8.81 84 1.745 0 0.25 -0.125 0.125 3.59 3.96 3.51 3.88 12.32 16.20 95 2.780 0.5 0.375 7.21 7.05 23.25 99 3.965 0.75 0.625 15.97 15.62 38.87 Graphic Phi Parameters Inman Folk & Ward 1 0.875 18.07 17.6a 56.55 1.25 1.125 14.76 14.44 70.99 1952 1957 1.5 1.375 8.17 7.99 78.97 1.75 1.625 2.60 2.55 81.52 Mean 0.927 0.878 2 2.25 1.875 2.125 5.29 3.07 5.18 3.00 E6.7o 89.70 Standard Deviation 0.818 0.957 2.5 2.375 2.73 2.67 92.37 Skewness (1) 0.180 0.143 2.75 2.625 2.28 2.23 94.60 Skewness (2) 0.232 3 2.875 0.66 0.65 95.25 Kurtosis 1.214 1.756 3.25 3.125 1.04 1.02 96.27 3.5 3.375 1.25 1.23 97.5o 3.75 3.625 0.83 0.82 98.31 4 3.875 0.39 0.38 98.69 >4.0 4.25 1.33 1.31 100.00 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-39 Sample 8 ft COMP Mean 0.579 mm STD 0.485 mm Skewness 0.613 USCS Wentworth SP Coarse Sand Medium Sand Poorly Sorted Poorly Graded Fine Skewed Leptokur6c Total weight (gram) 94.38 % finer than 0.0625 mm (dry) 1.08 % gravel (dry) 0.00 % granule (dry) 5.35 CaCO3 16.7 Class Limits Mid Point Weight Weight% Cumm.Wt% Percentiles Moment Measures (phi) (mm) (0 (0) (gram) 1 -1.655 Mean 0.788 0.579 -0 -0.5 0.00 0.00 0.00 5 -1.285 Standard Deviation 1.044 0.485 -3 -3.5 0.00 0.00 0.00 Skewness 0.613 2 -1.5 .1.5 2.6 -1.75 0.00 0.00 0.00 0.00 0.00 16 -0.2e5 4.436 -1 -1.25 5.05 5.35 5.35 5.35 25 0.175 Dispersion -0.75 -0.875 2.08 2.20 U 50 0.670 Standard Deviation -0.5 -0.625 3.52 3.14 114.29 75 1.045 Deviation from Normal -0.25 -0.375 2.94 3.12 14.40 84 1.290 0 0.25 -0.125 0.125 4.28 4.36 4.53 4.62 18.93 23.55 95 2.835 0.5 0.375 7.15 7.57 31.13 99 3.905 0.75 0.625 14.83 15.71 46.84 Graphic Phi Parameters Inman Folk & Ward 1 0.875 16.71 17.71 64.55 1125 1.125 14.46 15.32 79.87 1952 1957 1.5 1.375 8.00 6.35 it .22 1.75 1.625 1.53 1.63 87.84 Mean 0.502 0.558 2 2..5 2.125 2.375 2.47 1.83 1.08 90.46 154 92.42 Standard Deviation 0.788 1.018 2.5 2.375 0.83 0.88 0.88 92.42 Skewness (1) -0.213 -0.081 2.75 2.625 1.47 1.54 93.96 Skewness (2) 0.133 3 2.875 1.17 1.24 95.20 Kurtosis 1.616 1.941 3.25 3.125 1.28 1.36 96.56 3.5 3.375 1.01 1.13 97.69 3.75 3.625 0.73 0.77 98.47 4 3.875 0.42 0.45 98.92 >4.0 4.25 1.02 1Is 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-40 Sample 8 ft COMP Mean 0.616 mm STD 0.476 mm Skewness 0.336 USCS Wentworth SP Coarse Sand Medium Sand Poorly Sorted Poorly Graded Symmetrical Mesokurtic Total weight (gram) 86.68 % finer than 0.0625 mm (dry) -0.41 % gravel (dry) 0.00 % granule (dry) 7.24 CaCO3 15.9 Class Limits Mid Point Weight Weight% Cumm.Wt% Percentiles Moment Measures (phi) (mm) (0 (0) (gram) 1 -1.680 Mean 0.699 0.616 -0 a -0.5 J.5 0.00 0.00 0.00 o.00 0.00 0.00 5 -1.405 Standard Deviation 1.070 0.476 -2 -2.5 0.00 0.00 0.00 16 -0.535 Skewness 0.336 -1.5 -1.25 y5 -0.055 Kurtosis 3.244 -1 -1.25 6.28 7.24 7.24 Dispersion -0.75 -0.875 2.51 2.51 2.90 2.90 0.14 10.14 so 0.615 Standard Deviation -0.5 -0.625 3 4.56 14.70 75 1.045 Deviation from Normal -0.25 -0.375 3.30.95 3.81 18.51 84 1.320 0 0.25 -0.125 0.125 4.41 4.78 5.09 5.51 23.60 29.11 95 2.815 0.5 0.375 5.71 6.58 35.70 99 3.490 0.75 0.625 12.98 14.98 50.58 Graphic Phi Parameters Inman Folk & Ward 1 0.57s 4.3z s.sz s7.2o 1.25 1.125 10.42 12.02 79.22 1952 1957 1.5 1.375 5.63 6.50 85.71 1.75 1.625 1.35 1.56 87.28 Mean 0.393 0.467 2 2.25 1s75 2.125 1.49 1.13 1.72 1.31.10 89.00 90.30 Standard Deviation 0.927 1.103 2.5 2.375 0.as 4 91.44 Skewness (1) -0.240 -0.099 2.75 2.625 2.22 2.56 94.01 Skewness (2) 0.097 3 2.875 1.59 1.84 96.84 Kurtosis 1.275 1.572 3.25 3.125 1.60 1.85 97.69 3.5 3.375 1.11 1.28 98.97 3.75 3.625 0.82 0.95 99.92 4 3.875 0.42 0.49 100.41 >4.0 4.25 -0.36 -0.41 100.00 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-41 Sample 8 ft COMP Mean 0.583 mm STD 0.543 mm Skewness -0.297 USCS Wentworth SP Coarse Sand Medium Sand Moderately Sorted Poorly Graded Symmetrical Plalykurtic Total weight (gram) 97.71 % finer than 0.0625 mm (dry) -1.18 % gravel (dry) 0.00 % granule (dry) 4.71 CaCO3 14.5 Class Limits Mid Point Weight Weight% Cumm.Wt% Percentiles Moment Measures (phi) (mm) (0 (0) (gram) 1 -1.640 Mean 0.779 0.583 -0 -0.5 0.00 0.00 0.00 5 -1.185 Standard Deviation 0.882 0.543 a J.5 0.00 0.00 0.00 Skewness -0.297 -2 -1.5 -2.5 -1.75 0.00 0.00 0.00 0.00 0.00 0.00 16 Kurtosis 2.548 -1 -1.25 4.60 471 4.71 0.250 y5 0.250 Dispersion -0.75 -0.875 2.01 2.06 6.76 so 0.710 Standard Deviation -0.5 -0.625 3.37 3.45 10.21 75 1.095 Deviation from Normal -0.25 -0.375 2.08 2.13 102" 84 1.365 0 0.25 -0.125 0.125 4.03 4.69 4.13 4.80 16.46 21.25 95 2.475 0.5 0.375 7.80 7.98 29.24 99 3.325 0.75 0.625 15.19 15.54 44.78 Graphic Phi Parameters Inman Folk & Ward 1 0.57s s.5a s.sa 61.76 1.25 1.125 15.53 15.90 77.65 1952 1957 1.5 1.375 7.44 7.61 85.27 1.75 1.625 2.32 2.37 87.64 Mean 0.613 0.645 2 ass 3.26 91.37 Standard Deviation 0.752 0.931 2.5 2.5 2.125 2.375 2.375 2.21 1.66 1.70 1.70 63 93.33 95.33 Skewness (1) -0.130 -0.083 2.75 2.625 1.92 1.96 97.29 Skewness (2) -0.086 3 2.875 0.95 0.97 98.26 Kurtosis 1.432 1.775 3.25 3.125 0.97 0.99 99.25 3.5 3.375 1.10 1.13 100.38 3.75 3.625 0.48 0.49 100.88 4 3.875 0.30 0.30 101.18 >4.0 4.25 -1.15 -1.18 100.00 Grain Size Distribution Grain Size Distribution Grain Size (mm) cram size o , 4 -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 8 ft COMP Mean 0.434 mm STD 0.464 mm Skewness -0.615 USCS Wentworth SP Medium Sand Medium Sand Poorly Sorted Poorly Graded Coarse Skewed Leptokur6c Total weight (gram) 104.43 % finer than 0.0625 mm (dry) 0.73 % gravel (dry) 0.00 % granule (dry) 5.44 CaCO3 13.9 Class Limits Mid Point Weight Weight% Cumm.Wt% Percentiles Moment Measures (phi) (mm) (0 (0) (gram) 1 -2.940 Mean 1.205 0.434 A a a.5 J.5 0.00 0.00 0.00 o.00 0.00 o.o0 5 -1.340 Standard Deviation 1.107 0.464 -2 -2.5 1.87 1.79 1.79 16 0.425 Skewness -0.615 .1.5 -1.75 1.21 1.16 2.95 25 0 6 Kurtosis 5.012 -1 -1.25 2.61 2.50 5.44 Dispersion -0.75 -0.875 0.50 0.48 5.93 50 1.085 Standard Deviation -0.5 -0.625 1.04 1.00 6.92 75 1.505 Deviation from Normal -0.25 -0.375 0.94 0.90 7.83 84 2.120 0 0.25 -0.125 0.125 1.50 1.89 1.44 1.81 9.27 11.08 95 2.845 0.5 0.375 3.40 3.25 14.33 99 3.640 0.75 0.625 8.48 8.12 22.46 Graphic Phi Parameters Inman Folk & Ward 1 0.875 13.34 12.77 35.23 1.25 1.125 18.50 17.71 52.94 1952 1957 1.5 1.375 19.76 18.92 71.86 1.75 1.625 6.33 6.06 77.93 Mean 1.273 1.210 2 4.54 8255 Standard Deviation 0.848 1.058 2..5 2.5 2.125 2.375 2.375 1.49 1.49 1.43 1.47 1.43 4.02 :5.45 85.45 Skewness (1) 0.221 0.031 2.75 2.625 5.22 4.99 90.44 Skewness (2) -0.392 3 2.875 5.43 5.20 96.64 Kurtosis 1.469 2.066 3.25 3.125 2.44 2.34 97.98 3.5 3.375 0.69 0.66 98.65 3.75 3.625 0.35 0.34 98.98 4 3.875 0.29 0.28 99.27 >4.0 4.25 0.77 0.73 100.00 Grain Size Distribution Grain Size (mm) 4 -J -Z -1 u 1 Z S 4 Grain Size (0) Project 2403-M Location Buxton, NC Date Apr 06 2021 Station BUX-43 Sample 8 ft COMP Mean 0.565 mm STD 0.383 mm Skewness -0.269 USCS Wentworth SP Coarse Sand Medium Sand Poorly Sorted Poorly Graded Symmetrical Mesokurtic Total weight (gram) 94.08 % finer than 0.0625 mm (dry) 1.58 % gravel (dry) 0.96 % granule (dry) 11.00 CaCO3 25.3 Class Limits Mid Point Weight Weight% Cumm.Wt% Percentiles Moment Measures (phi) (mm) (0 (0) (gram) 1 -3.475 Mean 0.823 0.565 -0 As 0.00 0.00 0.00 5 -1.670 Standard Deviation 1.269 0.383 a -3.5 0.91 0.96 o.96 Skewness -0.269 -2 -1.5 -2.5 -1.75 1.17 1.19 1.50 2.46 3.72 i6 -0.830 Kurtosis 3.461 -1 -1.25 7.75 a.24 8.24 11.96 25 -0.120 Dispersion -0.75 -0.875 3.15 3.35 15.30 50 0.890 Standard Deviation -0.5 -o.625 3. so 3.72 19.03 75 1.515 Deviation from Normal -0.25 -0.375 2.38 2.53 21.56 84 1.795 0 0.25 -0.125 0.125 3.19 3.42 3.39 3.63 24.95 28.58 95 3.025 0.5 0.375 4.99 5.31 33.88 99 4.000 0.75 0.625 7.So 7.97 41.86 Graphic Phi Parameters Inman Folk & Ward 1 0.875 7.18 7.63 49.49 1.25 1.125 8.63 9.17 58.66 1952 1957 1.5 1.375 11.56 12.29 70.95 1.75 1.625 6.70 7.12 78.07 Mean 0.482 0.618 2 2.25 .125 2.125 8.16 2.83 3.67 3.01 ss.74 E9 .75 Standard Deviation 1.313 1.368 2.5 2.375 1.18 1.25 91.00 Skewness (1) -0.310 .0.200 2.75 2.625 1.60 1.70 92.70 Skewness (2) -0.162 3 2.875 1.44 1.53 94.23 Kurtosis 0.789 1.177 3.25 3.125 1.19 1.27 95.50 3.5 3.375 1.07 1.14 96.63 3.75 3.625 0.98 1.04 97.68 4 3.875 0.70 0.74 98.42 >4.0 4.25 1.49 1.58 100.00 Project 2403-M Location Buxton, NC Date Apr 06 2021 Station BUX-44 Sample 8 ft COMP Mean 0.481 mm STD 0.448 mm Skewness -1.511 USCS Wentworth SP Medium Sand Medium Sand Poorly Sorted Poorly Graded Strongly Coarse Skewed Leptokur6c Total weight (gram) 106.31 % finer than 0.0625 mm (dry) 0.35 % gravel (dry) 1.20 % granule (dry) 5.59 CaCO3 19.2 Class Limits Mid Point Weight Weight% Cumm.Wt% Percentiles Moment Measures (phi) (mm) (0 (0) (gram) 1 -3.665 Mean 1.055 0.481 -0 -0.5 0.00 0.00 0.00 5 -1.680 Standard Deviation 1.160 0.448 3 -3.5 1.27 1.20 1.20 Skewness -1.511 -2 -1.5 -2.5 -1.25 1.44 1.35 4.79 4.70 16 0.130 Kurtosis 6.291 -1 -1.25 2.2a 2.23 2.09 2.as s.7s y5 0.540 Dispersion -0.75 -0.875 0.92 0.87 7.66 50 1.175 Standard Deviation -0.5 -0.625 1.68 1.58 9.23 75 1.670 Deviation from Normal -0.25 -0.375 1.40 1.32 10.55 84 1.825 0 0.25 -0.125 0.125 2.63 3.07 2.47 2.89 13.02 15.91 95 2.235 0.5 0.375 4.62 4.35 20.26 99 2.855 0.75 0.625 1.60 7.15 27.41 Graphic Phi Parameters Inman Folk & Ward 1 0.875 8.84 8.32 35.72 1.25 1.125 11.78 11.08 46.80 1952 1957 1.5 1.375 16.32 15.36 62.15 1.75 1.625 10.78 10.14 72.29 Mean 0.977 1.043 2 2.25 1s75 2.125 15ss 6.88 14.7a 6.48 s7.02 93.50 Standard Deviation 0.847 1.017 2.5 2.375 3.56 3.35 96.85 Skewness (1) -0.233 -0.346 2.75 2.625 1.85 1.74 98.59 Skewness (2) -1.059 3 2.875 0.47 0.44 99.04 Kurtosis 1.310 1.420 3.25 3.125 0.26 0.24 99.28 3.5 3.375 0.17 0.16 99.44 3.75 3.625 0.12 0.11 99.55 4 3.875 0.11 0.10 99.65 >4.0 4.25 0.37 0.35 100.00 Grain Size Distribution Grain Size (mm) 4 -J -L -1 u 1 Z S 4 Grain Size (0) Project 2403-M Location Buxton, NC Date Apr 06 2021 Station ALL Sample 8 ft COMP Mean 0.457 mm STD 0.432 mm Skewness -0.277 USCS Wentworth SP Medium Sand Medium Sand Poorly Sorted Poorly Graded Symmetrical Leptokur6c Total weight (gram) 98.24 % finer than 0.0625 mm (dry) 1.52 % gravel (dry) 0.30 % granule (dry) 5.54 CaCO3 16.6 Class Limits Mid Point Weight Weight% Cumm.Wt% Percentiles Moment Measures (phi) (mm) (0 (0) (gram) 1 -2.730 Mean 1.130 0.457 -0 -3 -0.5 -3.5 0.00 0.30 0.00 0.30 0.00 0.30 5 -1.350 Standard Deviation 1.210 0.432 -2 -2.5 0.a9 0.90 1.21 16 -0.020 Skewness -0.277 -1.5 -1.75 0.51 0.52 1.72 25 0.440 Kunosis 3.976 -1 -1.25 4.04 4.11 5.84 Dispersion -0.75 -0.875 1.60 1.63 7.47 50 1.015 Standard Deviation -0.5 -0.625 2.42 2.46 9.93 75 1.705 Deviation from Normal -0.25 -0.375 1.87 1.90 11.83 84 2.110 0 0.25 -0.125 0.125 2.82 3.02 2.87 3.07 14.70 17.77 95 2.940 0.5 0.375 4.66 4.74 22.51 99 4.000 0.75 0.625 9.20 9.36 31.87 1 0.875 11.26 11.46 43.33 Graphic Phi Parameters Inman Folk & Ward 1.25 1.125 11.64 11.85 55.18 1952 1957 1.5 1.375 11.18 11.38 66.56 1.75 1.625 5.90 6.01 72.57 Mean 1.045 1.035 2 2.25 11 2.125 71 1 3.83 774 3.90 so.32 Standard Deviation 1.065 1.183 2.5 2.375 3.22 3.28 : 874.22 .50 Skewness (1) 0.028 -0.037 2.75 2.625 4.24 4.32 91.82 Skewness (2) -0.207 3 2.875 2.72 2.77 94.59 Kurtosis 1.014 1.390 3.25 3.125 1.54 1.57 96.16 3.5 3.375 0.97 0.99 97.14 3.75 3.625 0.72 0.73 97.87 4 3.875 0.60 0.61 98.48 >4.0 4.25 1.49 1.52 100.00