Publication Sample-type Sample-ID Group-ID Sample Lat(DD) Long(DD) Elev(masl) Thickn(cm) Density(g/cm3) Shield 10Be-conc(at/g) 10Be-unc(at/g) 10Be-std 26Al-conc(at/g) 26Al-unc(at/g) 26Al-std Sampl-year Publ-10-age(yr) Publ-10-unc(yr) Publ-26-age(yr) Publ-26-unc(yr) 10Be-age(yr) 10-ext-unc(yr) 10-int-unc(yr) 26Al-age(yr) 26-ext-unc(yr) 26-int-unc(yr) Extra-publ Hein et al. (2016b) cobble-boulder Hein2016b-1 Hein2016b-A MH12-53 -80.2967 -82.1180 1271 4.5 2.7 0.988 15588900 370800 NIST_27900 81159400 3076400 Z92-0222 2012 1331000 220000 1196000 323000 1271897 117322 42275 1218183 204831 89143 Hein et al. (2016a) Hein et al. (2016b) cobble-boulder Hein2016b-2 Hein2016b-A MH12-52 -80.2968 -82.1170 1269 3 2.7 0.988 14445700 356500 NIST_27900 78649600 3217400 Z92-0222 2012 1179000 187000 1105000 284000 1128334 100550 37406 1124252 181720 84049 Hein et al. (2016a) Hein et al. (2016b) cobble-boulder Hein2016b-3 Hein2016b-A MH12-50 -80.2966 -82.1150 1267 5 2.7 0.989 15629500 393300 NIST_27900 78468000 3182500 Z92-0222 2012 1349000 225000 1137000 297000 1288948 120377 45538 1157694 190452 87493 Hein et al. (2016a) Hein et al. (2016b) cobble-boulder Hein2016b-4 Hein2016b-B MH12-27 -80.2631 -82.1871 1381 3 2.7 1 9588500 198200 NIST_27900 59892700 2388300 Z92-0222 2012 614000 82000 611000 117000 591466 44699 14225 619573 75057 34021 Hein et al. (2016a) Hein et al. (2016b) cobble-boulder Hein2016b-5 Hein2016b-B MH12-28 -80.2626 -82.1863 1380 2.5 2.7 1 10306700 228100 NIST_27900 63053100 2211900 Z92-0222 2012 666000 91000 654000 127000 641038 49442 16723 662324 80189 32745 Hein et al. (2016a) Hein et al. (2016b) cobble-boulder Hein2016b-6 Hein2016b-B MH12-29 -80.2625 -82.1863 1375 5 2.7 1 9372900 243300 NIST_27900 53195300 2116600 Z92-0222 2012 614000 83000 538000 99000 591447 45985 17863 544388 63305 28645 Hein et al. (2016a) Hein et al. (2016b) cobble-boulder Hein2016b-7 Hein2016b-C MH12-72 -80.2766 -82.1105 1095 4.5 2.7 0.998 6419800 138400 NIST_27900 36986400 1516700 Z92-0222 2012 529000 69000 462000 82000 509718 37874 12515 467764 52553 24353 Hein et al. (2016a) Hein et al. (2016b) cobble-boulder Hein2016b-8 Hein2016b-C MH12-71 -80.2766 -82.1101 1093 3.5 2.7 0.998 7100100 154500 NIST_27900 40216100 1645900 Z92-0222 2012 589000 79000 510000 93000 567663 42866 14283 516316 59498 27528 Hein et al. (2016a) Hein et al. (2016b) cobble-boulder Hein2016b-9 Hein2016b-C MH12-73 -80.2766 -82.1106 1092 5 2.7 0.998 5790400 147300 NIST_27900 39585500 1634600 Z92-0222 2012 474000 62000 508000 93000 457221 34223 13067 515086 59431 27691 Hein et al. (2016a) Hein et al. (2016b) cobble-boulder Hein2016b-10 Hein2016b-D MH12-45 -80.2529 -82.0915 879 4 2.7 0.999 10200 2000 NIST_27900 51800 7500 Z92-0222 2012 850 180 600 90 820 169 161 604 100 88 Hein et al. (2016a) Hein et al. (2016b) cobble-boulder Hein2016b-11 Hein2016b-D MH12-47 -80.2533 -82.0868 869 3.5 2.7 0.998 200 1700 NIST_27900 12600 6600 Z92-0222 2012 20 170 160 70 19 163 163 165 87 86 Hein et al. (2016a) Hein et al. (2016b) cobble-boulder Hein2016b-12 Hein2016b-D MH12-42 -80.2529 -82.1038 867 6 2.7 0.998 6200 2000 NIST_27900 0 0 0 2012 540 210 - - 521 171 168 - - - Hein et al. (2016a) Hein et al. (2016b) cobble-boulder Hein2016b-13 Hein2016b-E PH12-138 -80.3337 -81.4099 1189 6 2.7 0.998 9261000 195200 NIST_27900 46325600 1563100 Z92-0222 2012 746000 104000 563000 104000 717394 56157 18187 570433 65304 25811 Hein et al. (2016a) Hein et al. (2016b) cobble-boulder Hein2016b-14 Hein2016b-F PH12-59 -80.3275 -81.4821 1109 6 2.7 0.999 5779300 124300 NIST_27900 29663600 1091300 Z92-0222 2012 468000 61000 352000 58000 451613 33045 10897 355714 36885 15666 Hein et al. (2016a) Hein et al. (2016b) cobble-boulder Hein2016b-15 Bent2010-B PH12-140 -80.3308 -81.3862 1006 2 2.7 0.991 4809700 154400 NIST_27900 27948600 1002800 Z92-0222 2012 411000 54000 355000 59000 396925 30487 14094 358750 37094 15434 Hein et al. (2016a) Hein et al. (2016b) cobble-boulder Hein2016b-16 Bent2010-B PH12-14 -80.3308 -81.3864 997 3 2.7 0.990 5475000 117600 NIST_27900 29004200 1036200 Z92-0222 2012 486000 63000 379000 64000 468051 34389 11327 383429 40130 16637 Hein et al. (2016a) Hein et al. (2016b) cobble-boulder Hein2016b-17 Bent2010-B PH12-15 -80.3309 -81.3850 997 5 2.7 0.990 5403300 116600 NIST_27900 29257300 1048700 Z92-0222 2012 488000 64000 391000 66000 470301 34592 11441 395835 41721 17344 Hein et al. (2016a) Hein et al. (2016b) cobble-boulder Hein2016b-18 Hein2016b-G PH12-133 -80.3200 -81.4135 762 3 2.7 0.995 8900 1500 NIST_27900 0 0 0 2012 820 200 - - 795 143 134 - - - Hein et al. (2016a) Hein et al. (2016b) cobble-boulder Hein2016b-19 Hein2016b-G PH12-145 -80.3252 -81.3540 751 5 2.7 0.996 15200 2300 NIST_27900 107400 10600 Z92-0222 2012 1460 290 1420 240 1407 230 213 1435 181 142 Hein et al. (2016a) Hein et al. (2016b) cobble-boulder Hein2016b-20 Hein2016b-G PH12-96 -80.3300 -81.2939 742 3.5 2.7 0.997 13500 2200 NIST_27900 67800 8300 Z92-0222 2012 1280 310 890 200 1241 216 202 894 130 109 Hein et al. (2016a) Hein et al. (2016b) cobble-boulder Hein2016b-21 Hein2016b-G PH12-97 -80.3303 -81.2901 738 3 2.7 0.997 800 1200 NIST_27900 0 0 0 2012 90 160 - - 84 127 127 - - - Hein et al. (2016a) Reference: Hein AS, Woodward J, Marrero SM, Dunning SA, Steig EJ, Freeman SPHT, Stuart FM, Winter K, Westoby MJ, Sugden DE, 2016b. Evidence for the stability of the West Antarctic ice sheet divide for 1.4 million years. Nature Communications 7, 10325. Data comments: Sampling year based on sample names. Group ID based on sample location and geomorphology. Three samples grouped with Bentley et al. (2010) samples. Four samples (group Hein2016b-G) grouped with Sugden et al. (2017) samples. expage.github.io - data from expage-202306