Elemental and Isotopic Composition of Moulton air   MOULTON CH4 DATA
          ( with respect to present day air)      
Moulton Trench ID+ A-trench Estimated Ice Total Gas               A-trench Estimated Ice
(Block#) Distance (m)* Age (ka) ** Content (cc/g) d32/28 d18O d15N dAr/N2 dCO2/N2 Atm 18O   Sample ID Distance (m)* Age (ka) ** CH4 ppb
Moulton A2a 1.02 10.4 0.041 -33.8 -0.31 0.10 1.5 -651.0 -0.50  
Moulton A2b 1.02 10.4 0.040 -19.4 -0.35 0.28 -14.6 -584.7 -0.91   BH1-B 1112
Moulton A8a 4.3 11.7 0.041 -22.4 -0.15 0.08 -3.4 -605.1 -0.32   BH1-C 983
Moulton A13a 7.3 12.9 0.047 -16.7 0.00 0.07 -10.0 -564.7 -0.14   BH1-D 1087
Moulton A13b 7.3 12.9 0.044 -44.7 0.00 0.05 -17.0 -614.6 -0.10   BH5-A 634
Moulton A21a 10.29 14.1 0.000 -4.0 -0.10 0.00 -4.7 -626.4 -0.10   BH5-B 833
Moulton A21b 10.29 14.1 0.042 -28.1 0.10 0.03 -12.3 -630.7 0.04   BH5-C 660
Moulton A45a 24.5 16.0 0.057 -18.4 -0.06 0.10 -6.5 -474.3 -0.27   BH-8a 946
Moulton A45b 24.5 16.0 0.041 -20.9 -0.04 0.07 -9.7 -612.4 -0.19   BH-8b 683
Moulton A94a 50.11 19.0 0.053 -12.2 0.37 0.11 -5.8 -604.3 0.16   BV-14 A 6038
Moulton A94b 50.11 19.0 0.052 -5.3 0.47 0.15 -2.0 -619.8 0.17   BV-14 B 1090
Moulton A144a 77.14 22.1 0.039 -13.2 0.15 0.10 -3.9 -592.8 -0.06   BV-14 C 2523
Moulton A144b 77.14 22.1 0.048 -10.6 0.16 0.13 -2.0 -607.0 -0.10   BV-15 A 1123
Moulton A168a 89.95 23.5 0.040 -8.0 0.35 -0.02 -2.5 667.7 0.38   BV-16 A 1136
Moulton A192a 102.31 25.0 0.040 -4.6 0.55 0.05 1.3 467.7 0.45   BV-16 B 1029
Moulton A192b 102.31 25.0 0.046 -27.3 0.77 0.08 -10.3 303.1 0.60   BV-17 A 1227
Moulton A217a 116.08 26.5 0.040 0.5 0.24 0.13 0.2 -612.1 -0.02   CH 1 A 840
Moulton A217b 116.08 26.5 0.044 4.2 0.68 0.09 3.0 770.4 0.51   CH 2 A 2292
Moulton A233b 124.61 28.5 0.047 -9.2 0.45 -0.01 -2.6 153.9 0.47   CH 2B 678
Moulton A233b 124.61 28.5 0.040 14.1 0.31 -0.05 13.5 265.7 0.40   CH10-C 1720
Moulton A236b 126.21 30.1 0.030 -7.2 0.17 -0.02 -2.3 527.3 0.21   CH10-B 764
Moulton A236b 126.21 30.1 0.031 2.1 0.11 -0.04 5.0 232.0 0.19   CH10-A 729
Moulton A242a 128.98 33.0 0.027 26.2 -0.20 0.02 19.1 -608.7 -0.24   CH-50 / #3a 620
Moulton A242b 128.98 33.0 0.033 -11.4 0.21 0.00 1.0 157.3 0.22   CH-50 / #3b 675
Moulton A246a 131.09 35.2 0.039 23.1 0.07 0.02 13.3 391.2 0.03   CH-100 / #9a 500
Moulton A246b 131.09 35.2 0.057 5.3 0.03 -0.04 2.1 504.9 0.12          
Moulton A249a 132.71 36.9 0.035 18.6 0.57 0.03 14.6 556.0 0.52   A2 1.02 10.4 434
Moulton A251a 134.21 38.5 0.038 -28.7 0.39 0.03 -1.3 571.1 0.33   A2 1.04 10.4 244
Moulton A251b 134.21 38.5 0.027 17.5 -0.03 -0.04 14.9 659.5 0.04   A13 7.33 12.9 948
Moulton A254a 135.84 40.2 0.027 25.7 -0.05 -0.03 19.1 711.8 0.01   A21 10.25 14.1 831
Moulton A254b 135.84 40.2 0.034 -14.2 0.11 0 -1 571.1 0.1   A21 10.25 14.1 756
Moulton A257a 137.43 41.8 0.033 59.2 -0.18 0.01 27.6 619.2 -0.20   A45 24.5 16.0 462
Moulton A257B 137.43 41.8 0.031 33.9 -0.09 -0.04 21.6 440.3 -0.01   A70 37.38 17.5 336
Moulton A263b 140.18 44.7 0.040 20.5 -0.06 0.01 24.2 1724.2 -0.08   A70 37.38 17.5 425
Moulton A263a 140.18 44.7 0.035 6.5 0.09 0.03 9.2 926.0 0.04   A94 50.1 19.0 609
Moulton A266b 141.74 46.3 0.037 -3.5 -0.2 0.06 0.5 550.8 -0.31   A120 63.91 20.5 183
Moulton A361a 142.43 47.0 0.039 -15.6 0.41 0.07 -1.3 427.7 0.28   A144 77.15 22.1 276
Moulton A361b 142.43 47.0 0.036 -16.1 0.01 0.05 -1.3 834 -0.09   A168 89.95 23.5 860
Moulton A269b 143.83 48.5 0.040 4.6 0.18 0.15 2.7 -868.4 -0.11   A168 89.95 23.5 894
Moulton A269a 143.83 48.5 0.041 -24.1 0.24 0.06 -6.9 238.8 0.13   A192 102.31 25.0 266
Moulton A271 144.85 49.6 0.035 -8.8 0.36 0.06 6.1 523.8 0.24   A233 124.61 28.5 303
Moulton A277b 147.64 52.5 0.037 30.5 0.22 0.03 24 487 0.17   A236 126.2 30.1 261
Moulton A277a 147.64 52.5 0.040 39 0.18 0.02 21.8 469.2 0.14   A249 132.7 36.9 335
Moulton A282 150.72 55.7 0.030 -16.5 -0.06 0.00 -4.3 944.7 -0.06   A251 134.21 38.5 217
Moulton A288b 153.54 58.6 0.040 17 0.09 -0.04 15.3 675.4 0.17   A254 135.84 40.2 464
Moulton A288a 153.54 58.6 0.028 21.3 0.05 0.03 15.9 1414.6 -0.01   A266 141.75 46.3 229
Moulton A289a 155.54 60.7 0.028 7.4 -0.28 -0.07 7.6 583.9 -0.13   A269 143.84 48.5 312
Moulton A298b 155.54 60.7 0.027 33.6 -0.26 -0.01 21.9 460.3 -0.24   A273 145.96 50.7 353
Moulton A293a 156.63 61.9 0.035 -11.7 -0.12 -0.02 -4.6 949.6 -0.09   A282 150.75 55.7 159
Moulton A293b 156.63 61.9 0.029 23.6 -0.2 0.05 15.7 392.5 -0.31   A288a 153.5 58.6 220
Moulton A295a 157.66 62.9 0.025 41.1 -0.19 -0.07 28.7 457.3 -0.05   A288b 153.5 58.6 472
Moulton A298a 159.89 65.3 0.042 -30.9 0.30 0.05 5.7 244.7 0.20   A291 155.56 60.7 283
Moulton A302 161.51 67.0 0.034 33.8 0.09 0.05 23.1 170.7 -0.01   A295 157.69 63.0 211
Moulton A305a 162.5 68.0 0.030 0.9 0.10 -0.03 10.7 731.2 0.16   A302 161.52 67.0 228
Moulton A308a 164.65 70.2 0.029 6.4 0.31 0.05 16.9 -175.6 0.2   A305 162.5 68.0 320
Moulton A308b 164.65 70.2 0.043 -9.7 -0.24 -0.14 -1.3 517.2 0.04   A320 171.05 76.9 141
Moulton A314a 167.84 73.6 0.037 -18.5 0.40 0.02 -5.7 625.7 0.36   A341 182.25 88.6 145
Moulton A317 169.44 75.2 0.028 -2.4 -0.09 0.02 4.7 -54.1 -0.13   A344 183.85 90.3 266
Moulton A317 169.44 75.2 0.029 10.6 -0.19 -0.11 14.1 898.0 0.03   A355 189.23 95.5 299
Moulton A320a 171.05 76.9 0.037 0.0 -0.15 0.03 0.8 644.5 -0.20   A371 198.25 103.8 178
Moulton A330 175.91 82.0 0.030 7.5 -0.58 -0.06 11.9 273.4 -0.47   A374 199.85 105.3 359
Moulton A333 177.96 84.1 0.039 -9.5 -0.19 0.03 3.6 980.6 -0.25   A377 201.4 106.7 552
Moulton A341 182.25 88.6 0.004 33.1 -0.09 0.07 17.2 493.9 -0.23   F7a 201.55 106.8 446
Moulton A341 182.25 88.6 0.043 1.6 -0.09 0.02 7.5 874.5 -0.14   F7b 201.55 106.8 393
Moulton A349a 186.03 92.5 0.039 12.6 0.15 0.01 15.1 718.2 0.12   F13a 205.25 109.9 379
Moulton A349b 186.03 92.5 0.030 -2.3 0.26 -0.01 3.3 535.6 0.27   F13b 205.25 109.9 301
Moulton A353a 188.65 94.9 0.040 1.1 0.21 0.08 96.7 874.8 0.05   F16a 206.45 110.9 488
Moulton A353b 188.65 94.9 0.037 8.5 0.26 0.08 9.1 787.6 0.09   F16b 206.45 110.9 501
Moulton A355a 189.2 95.5 0.039 -3.3 0.39 0.11 1.2 708.6 0.18   F20a 209 113.0 424
Moulton A355b 189.2 95.5 0.035 22.4 -0.10 0.03 16.7 1145.1 -0.15   F20b 209 113.0 492
Moulton A359b 191.93 98.0 0.041 3.6 0.08 -0.03 10.1 423.4 0.13   F28a 213.33 116.6 355
Moulton A359a 191.93 98.0 0.028 3.1 0.03 0.04 14.4 405.1 -0.05   F37b 217.75 120.2 180
Moulton A368 196.62 102.3 0.040 -10.5 -0.27 0.05 2.2 571.1 -0.36   F42a 220.45 122.4 278
Moulton A374 199.84 105.3 0.035 -2.9 -0.15 0.01 10.9 1048.7 -0.16   F42b 220.45 122.4 329
Moulton F-7d 201.53 106.8 0.034 -11.3 0.02 0.07 -3.6 -652.8 -0.11   F46a 223.05 124.5 340
Moulton F-7c 201.53 106.8 0.034 7.3 0.10 0.11 4.4 -646.1 -0.12   F46b 223.05 124.5 332
Moulton A379 202.04 107.2 0.044 1.3 0.11 0.11 5.3 799.2 -0.10   F48a 223.69 125.0 156
Moulton A380 203.04 108.0 0.032 13.0 -0.05 0.08 10.2 143.2 -0.22   F48b 223.69 125.0 109
Moulton A380 203.04 108.0 0.040 16.0 0.09 0.12 12.5 76.8 -0.16   F49a 224.65 125.8 322
Moulton A382 204.64 109.4 0.038 31.8 -0.11 0.06 17.9 140.9 -0.22   F49b 224.65 125.8 329
Moulton A382 204.64 109.4 0.058 -6.5 0.08 0.11 2.4 117.1 -0.14   F54a 227.35 128.0 316
Moulton F-13b 205.2 109.8 0.038 11.0 -0.21 0.00 10.0 495.2 -0.20   F54b 227.35 128.0 410
Moulton F-16b 206.4 110.8 0.036 -15.2 0.32 0.06 2.0 -621.7 0.20   F58a 229.05 129.4 348
Moulton A387a 206.78 111.1 0.047 -14.1 0.62 0.16 -3.2 221.3 0.29   F58b 229.05 129.4 312
Moulton A387b 206.78 111.1 0.044 4.0 0.55 0.13 5.1 283.8 0.29   F60a 230.6 130.7 309
Moulton A390 207.9 112.1 0.033 -4.9 0.36 0.03 7.0 283.8 0.31   F60b 230.6 130.7 362
Moulton F-20a 209 113.0 0.028 14.5 0.48 0.14 12.7 -633.7 0.21   F64a 232.75 132.4 267
Moulton A394b 210.04 113.8 0.046 5.3 0.71 0.13 7.7 424.4 0.45   F64b 232.75 132.4 305
Moulton A394a 210.04 113.8 0.058 -17.5 0.89 0.13 -8.3 319.2 0.63   F66a 233.35 132.9 354
Moulton F-25a 211.25 114.8 0.034 -1.8 0.53 0.06 5.0 -546.8 0.40   F66b 233.35 132.9 235
Moulton A396 211.64 115.2 0.045 -29.9 0.61 0.09 -16.0 105.4 0.42   F-69 235.02 134.3 631
Moulton F-28 213.35 116.6 0.041 4.7 0.49 0.12 2.4 217.1 0.25   F-70a 236 135.1 565
Moulton A401 214.25 117.3 0.047 9.0 0.56 0.10 7.7 242.5 0.36   F-70b 236 135.1 689
Moulton F-32a 215.05 118.0 0.037 -5.5 0.36 0.13 -1.5 -609.4 0.10   F-72b 236.47 135.5 1117
Moulton F-32b 215.05 118.0 0.035 6.2 0.01 -0.05 6.6 -612.5 0.11   F-71a 236.54 135.5 353
Moulton A404a 215.4 118.3 0.051 -7.8 0.73 0.16 -1.3 259.6 0.42   F-71b 236.54 135.5 285
Moulton F-35b 217.1 119.7 0.046 4.9 0.34 0.06 7.2 369.2 0.22   F73a 237.62 136.4 336
Moulton A407 217.31 119.8 0.050 -9.3 0.31 0.12 -2.9 236.7 0.07   F73b 237.62 136.4 275
Moulton A407 217.31 119.8 0.039 13.9 0.10 0.06 10.8 520.9 -0.02   F-74a 238.15 136.8 287
Moulton F-37a 217.79 120.2 0.038 -6.3 0.33 0.11 4.4 341.8 0.12   F-74b 238.15 136.8 341
Moulton A410 219.12 121.3 0.044 -2.4 -0.23 -0.15 2.1 338.0 0.06   F75a 238.7 137.3 319
Moulton F-40a 219.4 121.5 0.041 -5.5 0.06 0.15 -3.2 290.6 -0.25   F-76a 239.25 137.7 307
Moulton A413 220.25 122.2 0.033 19.9 -0.03 0.03 20.0 195.6 -0.09   F-76b 239.25 137.7 321
Moulton F-42a 220.48 122.4 0.045 -21.8 0.05 0.02 3.1 -238.4 0.00   F-77a 239.79 138.2 451
Moulton F-44a 221.95 123.6 0.038 -4.5 0.13 0.14 0.2 -578.2 -0.14   F-77b 239.79 138.2 375
Moulton F-44b 221.95 123.6 0.040 -10.4 0.24 0.18 20.8 -618.7 -0.12   F78a 240.32 138.6 304
Moulton A417 222.9 124.4 0.045 9.4 0.11 0.16 9.9 492.3 -0.20   F78b 240.32 138.6 323
Moulton F-46b 223.05 124.5 0.045 -14.0 0.10 0.14 -1.4 399.0 -0.17   E8a 240.75 139.0 644
Moulton F-48a 223.67 125.0 0.048 -9.0 0.12 0.20 -2.1 -585.4 -0.29   E8b 240.75 139.0 644
Moulton F-48b 223.67 125.0 0.038 -8.7 0.16 0.17 -2.9 -615.0 -0.18   F-79a 240.86 139.0 249
Moulton A421 224.57 121.3 0.056 -8.7 0.10 0.25 -6.2 163.2 -0.39   F-79b 240.86 139.0 300
Moulton F-49 224.63 125.8 0.037 5.9 0.03 0.13 8.5 128.5 -0.23   E9a 241.25 139.4 602
Moulton F-52b 225.9 126.8 0.041 -2.3 0.07 0.09 0.0 330.6 -0.11   E9b 241.25 139.4 656
Moulton A424 226.2 127.1 0.053 -17.4 0.06 0.17 -7.3 236.0 -0.28   F-80a 241.4 139.5 284
Moulton F-54a 227.4 128.1 0.050 0.9 0.00 0.11 -0.4 -337.1 -0.23   F-80b 241.4 139.5 279
Moulton F-54b 227.4 128.1 0.039 22.8 -0.06 0.11 10.0 -311.8 -0.28   F80a 241.4 139.5 331
Moulton A427 228.3 128.8 0.043 2.0 0.00 0.13 5.4 782.0 -0.25   F80b 241.4 139.5 309
Moulton F-58a 229.07 129.4 0.044 -7.4 0.08 0.18 -3.7 -541.0 -0.28   E10a 241.78 139.8 538
Moulton F-58b 229.07 129.4 0.035 12.5 -0.02 0.13 5.9 -603.3 -0.28   E10b 241.78 139.8 428
Moulton A431 229.97 130.2 0.044 11.4 -0.17 0.10 6.7 249.1 -0.38   E11a 242.33 140.2 721
Moulton A434 231.6 131.5 0.042 15.3 -0.17 0.15 11.0 492.1 -0.46   E11b 242.33 140.2 677
Moulton A434 231.6 131.5 0.040 1.1 -0.20 0.09 6.2 842.3 -0.38   F87a 242.45 140.3 687
Moulton F-64b 232.72 132.4 0.030 -11.9 -0.35 -0.05 -1.9 -245.6 -0.26   F87b 242.45 140.3 762
Moulton F-64a 232.72 132.4 0.030 -2.1 -0.08 0.14 1.6 -238.4 -0.37   E12a 242.87 140.7 779
Moulton F-66b 233.4 133.0 0.054 -1.3 0.00 0.13 4.4 499.0 -0.27   E12b 242.87 140.7 723
Moulton A438b 234.24 133.6 0.054 -5.1 0.23 0.15 -2.6 375.8 -0.07   F83a 243.03 140.8 1071
Moulton A438a 234.24 133.6 0.050 11.2 0.25 0.18 6.4 733.7 -0.11   E13a 243.43 141.1 526
Moulton F-60a 234.64 134.0 0.033 -4.6 0.08 0.15 4.3 120.9 -0.21   E13b 243.43 141.1 610
Moulton A440 234.84 134.1 0.044 -7.9 0.39 0.09 -1.2 304.0 0.20   F84a 243.55 141.2 794
Moulton F-69a 235.05 134.3 0.043 4.5 -0.09 0.10 5.6 195.9 -0.30   F84b 243.55 141.2 819
Moulton F-70b 236 135.1 0.049 -12.6 0.02 0.10 -6.7 370.6 -0.18   F85a 244.1 149.5 818
Moulton F-71B 236.5 135.5 0.042 -4.8 0.64 0.46 0.9 262.4 -0.27   F85b 244.1 149.5 1048
Moulton F-71A 236.5 135.5 0.045 -18.1 0.55 0.45 -7.0 168.0 -0.34   F86a 244.25 160.2 540
Moulton F-71c 236.5 135.5 0.039 -1.6 -0.18 0.06 6.2 -92.0 -0.30   F86b 244.25 160.2 520
Moulton A444a 237 135.9 0.050 -18.8 0.8 0.16 -10.2 648 0.48  
Moulton A444b 237 135.9 0.050 -17 0.77 0.11 -8.2 507.4 0.54  
Moulton F-72a 237.04 135.9 0.046 -43.3 0.28 0.26 -1.9 -173.1 -0.24  
Moulton F-72b 237.04 135.9 0.049 0.0 0.07 0.05 4.4 -122.1 -0.04  
Moulton F-73A 237.58 136.4 0.045 -0.3 0.12 0.10 3.2 183.8 -0.09  
Moulton F-74A 238.12 136.8 0.039 -16.8 0.43 0.13 -1.0 333.5 0.18  
Moulton F-75a 238.66 137.3 0.034 7.3 0.43 0.16 7.4 -185.2 0.11  
Moulton F-76b 239.25 137.7 0.055 -7.5 0.49 0.06 -1.4 395.3 0.36  
Moulton F-76a 239.27 137.8 0.039 4.7 -0.02 -0.08 6.3 246.6 0.14  
Moulton A448a 239.48 137.9 0.055 12.4 0.26 -0.10 10.6 340.3 0.46  
Moulton A448b 239.48 137.9 0.045 -12.0 0.84 0.14 -6.9 284.2 0.56  
Moulton E-7A 239.68 138.1 0.046 -4.8 1.46 0.42 -3.3 143.2 0.63  
Moulton E-7b 239.68 138.1 0.042 -8.3 1.78 0.58 0.3 190.1 0.62  
Moulton E-7c 239.68 138.1 0.050 -30.7 0.65 -0.01 -10.4 -91.1 0.66  
Moulton F-77b 239.75 138.1 0.034 -8.8 0.50 0.11 -4.5 237.8 0.28  
Moulton E-8b 240.66 138.9 0.035 -8.4 0.37 -0.15 -2.6 -115.6 0.66  
Moulton F-78b 240.75 139.0 0.042 -6.1 0.36 0.12 -1.6 182.0 0.12  
Moulton F-79b 240.9 139.1 0.041 -15.7 0.46 0.02 -2.8 -51.5 0.41  
Moulton E-9a 241.22 139.3 0.036 -15.7 1.16 0.13 -5.5 -14.8 0.90  
Moulton E-9b 241.22 139.3 0.037 -3.1 0.70 0.04 2.8 -220.8 0.62  
Moulton A451 241.26 139.4 0.036 0.7 1.03 0.13 4.3 156.5 0.77  
Moulton A451 241.26 139.4 0.035 -3.9 0.58 0.07 1.9 220.0 0.43  
Moulton F-80b 241.46 139.5 0.046 -12.7 0.54 -0.05 3.2 -40.4 0.65  
Moulton E-10A 241.82 139.8 0.046 -0.9 1.07 0.04 3.1 -168.1 0.98  
Moulton E-10b 241.82 139.8 0.037 -18.7 1.05 0.03 3.3 -168.1 0.99  
Moulton E-10c 241.82 139.8 0.027 -5.8 1.02 0.13 0.4 -371.2 0.76  
Moulton E-10d 241.82 139.8 0.037 2.7 0.99 0.13 4.9 -607.7 0.73  
Moulton F-81a 241.9 139.9 0.031 -3.7 0.92 0.12 3.5 33.8 0.69  
Moulton E-11a 242.32 140.2 0.045 -2.9 1.03 0.13 -1.5 -196.0 0.76  
Moulton E-11b 242.32 140.2 0.041 -12.6 1.11 0.12 0.5 -286.6 0.88  
Moulton F-82A 242.44 140.3 0.038 -3.6 0.76 0.12 2.2 -89.1 0.52  
Moulton F-82B 242.44 140.3 0.044 -6.4 0.59 0.07 -1.4 -106.7 0.45  
Moulton E-12a 242.85 140.7 0.042 8.1 0.84 0.04 10.7 -8.8 0.77  
Moulton E-12b 242.85 140.7 0.042 9.9 0.84 0.05 7.9 -218.0 0.74  
Moulton F-83a 243 140.8 0.025 -10.3 0.21 -0.18 -1.4 478.0 0.57  
Moulton E-13B 243.36 141.1 0.043 -2.5 0.76 0.00 3.9 -139.0 0.75  
Moulton E-13A 243.36 141.1 0.041 -18.9 0.97 0.06 -5.3 -135.6 0.86  
Moulton F-84A 243.52 141.2 0.030 -21.1 0.41 -0.10 -5.0 -109.2 0.60  
Moulton F-84B 243.52 141.2 0.030 -18.6 0.51 -0.07 1.5 -120.6 0.65  
Moulton E-14a 243.92 141.5 0.033 -10.7 0.74 0.08 -2.4 -251.0 0.58  
Moulton E-14b 243.92 141.5 0.030 -16.4 0.73 0.13 -2.9 -284.4 0.48  
Moulton F-85a 244.06 146.6 0.045 -11.9 0.81 0.02 -2.8 -189.8 0.77  
Moulton F-85b 244.06 146.6 0.039 1.7 0.63 -0.04 3.4 -159.5 0.71  
Moulton F-86A 244.24 159.5 0.036 7.2 0.74 0.01 7.8 -86.9 0.72  
Moulton F-86B 244.24 159.5 0.049 -7.7 0.55 -0.19 1.4 -102.9 0.93  
Moulton E-15b 244.52 179.5 0.039 2.4 0.64 0.03 3.2 592.8 0.58  
Moulton E-15a 244.52 179.5 0.049 -8.2 0.80 0.07 3.3 376.9 0.66  
Moulton E-16a 244.98 212.4 0.033 1.8 0.25 -0.01 2.8 726.0 0.26  
Moulton E-16b 244.98 212.4 0.035 9.7 0.45 0.02 8.4 688.5 0.41  
Moulton E-17a 245.52 251.0 0.037 -0.3 0.24 0.02 3.7 1040.8 0.20  
Moulton E-17b 245.52 251.0 0.037 -13.0 0.19 -0.02 -2.7 1382.4 0.23  
Moulton E-18a 246.08 291.1 0.037 1.5 0.19 0.04 3.8 918.4 0.10  
Moulton E-18b 246.08 291.1 0.037 0.2 0.23 0.05 4.2 863.6 0.13  
   
                     
   
* Trenches other than the A trench samples were converted to A trench equivalent distances with the following equaitons:  
  To convert F trench to A, add 198.25m to F distance      
  To convert E trench to A, add 236.43m to E distance      
   
** Ages were calculated by linearly interpolating between the Ar 40/39 ages assigned to the various tephra layers as follows:  
  Data from Wilch et al., 1999.  
  Sample A Trench Distance (m) 40Ar/39Ar  
  Age (ka)  
  WCM-313 11.2 14.5+/- 3.8  
  BIT-152 123.6 27.3 +/- 2.3  
  BIT-157 186 92.5 +/- 2.0  
  BIT-158 201 106.3 +/- 2.4  
  BIT-160 215.9 118.7 +/- 2.5  
  BIT-162 244 141.6 +/- 7.5  
  BIT-166 N/A 492.4 +/- 9.6  
   
  Wilch, T.I., W.C. McIntosh, and N. Dunbar, Late Quaternary volcanic activity in Marie Bryd Land: potential 40Ar/39Ar - dated time horizons in future West Antarctic ice and marine cores, Geological Scociety of America, 111 (no. 11), 1563-1580, 1999.