Table S1. Radiocarbon data and calendar-year calibrations from the headland moraine belt. Ages are calibrated using INTCAL13 and the CALIB program (13).Locations are keyed to Fig. S3: MG = Marshall-Garwood; MM = Miers-Marshall; GS = Garwood-Salmon; HM = Hidden-Miers; WV = Ward Valley; HV = Hidden Valley; HH = Hjorth Hill; SH = Salmon-Hobbs; BG = Blue Glacier.
Sample / Lab # / Location / 14C age / Error / δ13C / Cal. age / Error2s / % Prob. / Description
TK14C-10-77 / OS-92213 / MG / 16,100 / 50 / -2.75 / 19,420 / 128 / 1 / Algae in mound near drift limit
TK14C-10-38 / OS-87533 / MM / 15,550 / 55 / -4.25 / 18,800 / 126 / 1 / Algae in crest of ridge
GM14C-10-19 / OS-87463 / MG / 15,500 / 110 / -4.32 / 18,753 / 221 / 1 / Algae in small ridge
TK14C-10-79 / OS-88399 / MG / 15,400 / 70 / -3.38 / 18,665 / 153 / 1 / Algae in interbedded silt and sand
TK14C-11-40 / OS-104173 / MM / 15,400 / 100 / -4.91 / 18,657 / 213 / 1 / Algae in silty sand in ridge
BH14C-11-40 / OS-96820 / GS / 15,300 / 110 / -4.70 / 18,556 / 240 / 1 / Algae in silt in ice-proximal side of ridge; same as OS-100118
BH14C-11-40 / OS-100118 / GS / 15,250 / 130 / -4.65 / 18,490 / 300 / 1 / Algae in silt in ice-proximal side of ridge; same as OS-96820
TK14C-10-51 / OS-92244 / HM / 15,250 / 65 / -4.44 / 18,517 / 171 / 1 / Algae in pilly silt clasts in diamicton in ridge crest
ED14C-11-35 / OS-100360 / GS / 15,250 / 140 / -4.56 / 18,480 / 320 / 1 / Algae in layered silt interbedded with fine sand in basaltic mound
BH14C-10-24 / OS-88272 / MM / 15,200 / 65 / -5.0 / 18,469 / 176 / 1 / Algae in fine sand in basalt mound
GM14C-10-33 / OS-90162 / MM / 15,150 / 75 / 0.41 / 18,399 / 217 / 1 / Algae in gravel interbedded with sand and silt
TK14C-11-5 / OS-100058 / HM / 15,100 / 130 / -1.89 / 18,325 / 319 / 1 / Algae in moraine crest
MJ14C-11-32 / OS-96641 / GS / 15,050 / 160 / -5.0 / 18,283 / 365 / 1 / Algae in vertical beds of sand and silt from ice-proximal side of ridge
GM14C-10-15 / OS-90080 / MM / 15,000 / 60 / -2.91 / 18,210 / 200 / 1 / Algae in poorly sorted gravel in ridge
TK14C-10-40 / OS-88345 / MM / 15,000 / 55 / -3.22 / 18,210 / 192 / 1 / Algae in ridge crest
TK14C-10-55 / OS-87466 / MM / 15,000 / 80 / -2.72 / 18,214 / 233 / 1 / Abundant algae in sand layers under gravel in ridge
BH14C-11-24 / OS-96661 / WV / 14,950 / 160 / -4.47 / 18,195 / 377 / 1 / Algae in sorted medium sand
TK14C-10-34 / OS-87414 / HM / 14,900 / 95 / -2.91 / 18,122 / 242 / 1 / Algae from poorly sorted fine sand to gravel, in moraine crest.
GM14C-10-12 / OS-88400 / MM / 14,900 / 70 / -5.49 / 18,118 / 204 / 1 / Algae in ridge
PS14C-11-31 / OS-96649 / GS / 14,850 / 150 / -4.04 / 18,060 / 371 / 1 / Algae in poorly sorted sand and gravel in crest of basaltic mound
BH14C-11-8 / OS-100055 / HM / 14,850 / 120 / -4.66 / 18,067 / 304 / 1 / Algae in silty pebbly sand in moraine crest
BH14C-11-5 / OS-100054 / HM / 14,800 / 120 / -3.32 / 18,008 / 311 / 1 / Algae in layer in stratified sandy gravel in ice-proximal side of ridge
BH14C-10-25 / OS-87527 / HV / 14,800 / 75 / -1.32 / 18,020 / 222 / 1 / Algae in gravel within ridge crest
TK14C-10-73 / OS-90119 / MM / 15,192 / 75 / (-2.0) / 1 / Algae in well-sorted fine sand under gravelly silt near drift limit
BH14C-11-42 / OS-96619 / GS / 14,800 / 150 / -3.23 / 18,002 / 370 / 1 / Algae in coarse sand in ridge crest
TK14C-11-4 / OS-104171 / HM / 14,800 / 40 / -5.89 / 18,003 / 156 / 1 / Algae in sandy silt layers below gravel lag in ice-proximal slope of ridge
TK14C-10-36 / OS-87403 / HM / 14,750 / 60 / -2.45 / 17,941 / 194 / 1 / Algae in mound 30 m below main ridge crest
TK14C-10-75 / OS-92211 / MM / 14,750 / 45 / -2.83 / 17,944 / 166 / 1 / Algae from fine sand and silt beds under coarse sand and gravel in mound
PR14C-11-30 / OS-104074 / MM / 14,750 / 130 / -5.96 / 17,953 / 333 / 1 / Multiple layers of algae in medium to gravelly sand in bench
TK14C-10-76 / OS-92212 / MM / 14,700 / 55 / -1.71 / 17,877 / 182 / 1 / Abundant algae in fine sand under gravel in mound
GM14C-10-1 / OS-92285 / MM / 14,700 / 50 / -4.03 / 17,878 / 174 / 1 / Algae in fine silt and sand in ridge
PR14C-11-25 / OS-104178 / MM / 14,700 / 75 / -4.05 / 17,878 / 217 / 1 / Algal layer in stratified, dippping, coarse sand and silt in bench
BH14C-94-81 / AA-18921 / HH / 14,602 / 109 / -11.2 / 17,769 / 270 / 1 / Algae in fine, laminated sand in ridge
TK14C-11-53 / OS-100062 / HM / 14,600 / 130 / -5.86 / 17,770 / 319 / 1 / Algae in silty diamicton with cobbles in ice-proximal side of ridge
BH14C-11-6 / OS-96482 / HM / 14,600 / 120 / -9.39 / 17,767 / 294 / 1 / Algae in stratified sandy gravel in ice-proximal side of ridge
BH14C-11-21 / OS-96818 / WV / 14,550 / 120 / -2.89 / 17,718 / 296 / 1 / Abundant algae in sorted gravel in mound
TK14C-11-26 / OS-100060 / HM / 14,450 / 120 / -3.05 / 17,601 / 330 / 1 / Algae from terrace
TK14C-11-22 / OS-100059 / HM / 14,450 / 120 / -4.18 / 17,601 / 330 / 1 / Algae in ridge
BH14C-94-83 / AA-17320 / HH / 14,430 / 110 / -8.8 / 17,584 / 318 / 1 / Algae in fine, laminated sand in ridge
CM14C-10-3 / OS-92283 / HM / 14,400 / 55 / -2.99 / 17,552 / 215 / 1 / Abundant algae in ridge
BH14C-11-41 / OS-100119 / GS / 14,400 / 120 / -4.68 / 17,540 / 344 / 1 / Algae in fine yellow sand in ridge
PS14C-11-1 / OS-104077 / MM / 14,400 / 130 / -4.86 / 17,536 / 362 / 1 / Algae in fine sand interbedded with coarser sand on ice-proximal side of ridge
BH14C-93-117 / AA-14061 / HH / 14,312 / 107 / -10.2 / 17,416 / 322 / 1 / Algae from sand in ridge
TK14C-10-53 / OS-92294 / MM / 14,300 / 55 / -3.50 / 17,405 / 205 / 1 / Abundant algae in poorly sorted sandy gravel in ridge crest
GM14C-10-25 / OS-92574 / MG / 14,300 / 45 / +1.89 / 17,410 / 190 / 1 / Algae in ridge
BH14C-11-43 / OS-96620 / GS / 14,300 / 150 / -3.45 / 17,417 / 426 / 1 / Algae in gravel lenses in sand in ridge
BH14C-11-47 / OS-96623 / GS / 14,300 / 140 / -6.81 / 17,417 / 403 / 1 / Algae in silt in ridge
TK14C-10-57 / OS-87461 / MM / 14,250 / 70 / -3.09 / 17,343 / 228 / 1 / Abundant algae in basaltic sandy gravel in ridge
GM14C-10-14 / OS-90346 / MM / 14,250 / 75 / -2.63 / 17,344 / 238 / 1 / Algae in fine sand layers in ridge
TK14C-10-58 / OS-90187 / MM / 14,200 / 50 / -2.38 / 17,293 / 194 / 1 / Algae from basalt gravel mound
BH14C-11-3 / OS-96490 / MM / 14,150 / 120 / -0.29 / 17,200 / 371 / 1 / Algae from horizontal beds of yellow silty sand interlayered with gravel in ice-proximal side of ridge
GM14C-10-13 / OS-88405 / MM / 14,150 / 70 / -6.72 / 17,231 / 244 / 1 / Algae in ridge
BH14C-11-4 / OS-96487 / MM / 14,100 / 110 / -3.11 / 17,133 / 361 / 1 / Algae in well-sorted fine sand in horizontal beds below gravel
CM14C-10-4 / OS-88384 / HM / 14,050 / 60 / -2.24 / 17,090 / 267 / 1 / Algae in mound crest
BH14C-11-15 / OS-95934 / GS / 14,050 / 140 / -2.08 / 17,046 / 443 / 1 / Algae in dipping layer of silty sand sandwiched between gravel and cobbles in ice-proximal side of ridge
TK14C-11-39 / OS-104175 / MM / 14,050 / 30 / -1.87 / 17,066 / 201 / 1 / Algae in unsorted sand and gravel below cobble surface in thin drift patch
TK14C-11-50 / OS-100051 / HM / 14,000 / 110 / -11.38 / 16,991 / 387 / 1 / Algae in pilly silt in mound
TK14C-10-35 / OS-92288 / MM / 13,950 / 60 / -2.23 / 16,895 / 260 / 1 / Algae in ridge crest
BH14C-94-142 / AA-18932 / HH / 13,942 / 107 / -17.9 / 16,886 / 382 / 1 / Algae from stratified sand in ridge
BH14C-94-87 / AA-17321 / HH / 13,890 / 130 / -7.5 / 16,801 / 431 / 1 / Algae in laminated fine sand in ridge
CM14C-10-2 / OS-92282 / HM / 13,850 / 60 / -2.88 / 16,758 / 255 / 1 / Algae in ridge
ED14C-11-42 / OS-100124 / HH / 13,850 / 110 / -5.56 / 16,746 / 371 / 1 / Algae in poorly sorted sand in ice-distal side of ridge
BH14C-11-7 / OS-104174 / HM / 13,800 / 40 / -3.46 / 16,697 / 232 / 1 / Algae in orange laminated silty sand under 20 cm of gravel in distal slope of ridge
BH14C-94-80 / AA-18920 / HH / 13,778 / 110 / -9.9 / 16,659 / 360 / 1 / Algae in well-sorted, stratified fine sand in ridge
TK14C-10-39 / OS-87426 / HM / 13,750 / 80 / -2.08 / 16,625 / 303 / 1 / Algae in ridge crest
BH14C-11-39 / OS-96819 / GS / 13,750 / 110 / -2.71 / 16,627 / 359 / 1 / In silt layer in ice-proximal slope of ridge
BH14C-94-58 / AA-17309 / HH / 13,710 / 95 / -11.5 / 16,578 / 329 / 1 / Algae in fine sand in ice-contact delta
BH14C-11-65 / OS-96628 / HH / 13,700 / 130 / -6.01 / 16,573 / 403 / 1 / Algae in fine sorted sand in ridge crest
TK14C-10-37 / OS-92289 / HM / 13,650 / 50 / -2.19 / 16,463 / 226 / 1 / Algae in ridge crest
MJ14C-11-33 / OS-100353 / GS / 13,650 / 110 / -4.45 / 16,506 / 362 / 1 / Algae in layer of silty sand in distal side of mound
PR14C-11-9 / OS-100102 / GS / 13,600 / 110 / -2.65 / 16,427 / 360 / 1 / Algae in silt layer in interbedded silt and sand in ice-proximal slope of ridge
BH14C-11-18 / OS-95936 / GS / 13,550 / 140 / -4.23 / 16,359 / 439 / 1 / Abundant algae in fine sand in vertically dipping beds within ridge crest
BH14C-11-46 / OS-96622 / GS / 13,550 / 130 / -3.88 / 16,359 / 413 / 1 / Abundant algae in silty sand in felsic ridge
BH14C-11-57 / OS-100121 / HH / 13,550 / 120 / -6.31 / 16,354 / 385 / 1 / Abundant algae in fine, sorted sand in distal slope of ridge
ED14C-11-19 / OS-100066 / GS / 13,550 / 100 / -4.86 / 16,343 / 326 / 1 / Abundant algae in sand and gravel in ice-proximal side of ridge
BH14C-11-66 / OS-96629 / HH / 13,550 / 120 / -6.34 / 16,354 / 385 / 1 / Algae in fine, well-sorted sand under boulders in ridge crest
PR14C-11-19 / OS-96646 / MM / 13,500 / 120 / -0.86 / 16,270 / 376 / 1 / Algae in fine sand layer in ice-proximal slope of ridge
ED14C-11-46 / OS-96636 / HH / 13,500 / 120 / -5.78 / 16,270 / 376 / 1 / Algal pieces in silty sand in ice-distal side of ridge
BH14C-94-84 / AA-18922 / HH / 13,434 / 122 / -10.9 / 16,173 / 370 / 1 / Algae in laminated, fine silty sand in ridge
BH14C-94-88 / AA-17322 / HH / 13,425 / 95 / -7.8 / 16,401 / 481 / 1 / Algae in fine laminated sand in mound
BH14C-11-9 / OS-100050 / HM / 13,350 / 110 / -8.08 / 16,046 / 321 / 1 / Algae in fine laminated sand on crest of mound
BH14C-11-1 / OS-96488 / MM / 13,350 / 100 / -0.18 / 16,042 / 292 / 1 / Algae in dipping sand layer
ED14C-11-5 / OS-104176 / HM / 13,350 / 45 / -2.62 / 16,059 / 185 / 1 / Algae in sands and gravels in ice-distal side of ridge
BH14C-11-71 / OS-96631 / HH / 13,350 / 120 / -1.98 / 16,054 / 353 / 1 / Algae in fine sand in bench
PS14C-11-46 / OS-96654 / HH / 13,350 / 120 / -2.35 / 16,054 / 353 / 1 / Algae in stratified silt and fine sand under gravel in ridge
BH14C-94-82 / AA-17319 / HH / 13,305 / 95 / -8.0 / 15,995 / 275 / 1 / Abundant algae in fine, laminated sand in ridge
ED14C-11-36 / OS-104169 / GS / 13,250 / 45 / -4.48 / 15,925 / 179 / 1 / Algae in silt layer interbedded with sand and gravel in ice-proximal side of ridge
BH14C-95-116 / AA-20665 / HH / 13,230 / 90 / -21.7 / 15,904 / 287 / 1 / Algae in mica sand interbedded with silt in ridge
ED14C-11-25 / OS-95940 / GS / 13,200 / 120 / -11.0 / 15,821 / 391 / 1 / Algae from basaltic sand and gravel in ice-proximal side of mound
GM14C-10-39 / OS-87424 / HB / 13,200 / 60 / -4.17 / 15,869 / 209 / 1 / Algae in delta from lake dammed by ice sheet
BH14C-94-103 / AA-17330 / HH / 13,159 / 106 / -7.2 / 15,754 / 361 / 1 / Algae in fine sand and indurated silt balls in ridge
GM14C-10-26 / OS-92575 / MG / 13,150 / 55 / -3.31 / 15,802 / 220 / 1 / Algae in fine sand and silt layers under gravel
MJ14C-11-3 / OS-104172 / HM / 13,150 / 35 / -2.83 / 15,814 / 175 / 1 / Algae in yellow silt layer
ED14C-11-26 / OS-95939 / GS / 13,100 / 120 / -7.18 / 15,680 / 380 / 1 / Algae in sand and gravel from ice-distal side of ridge
PR14C-11-17 / OS-96645 / MM / 13,050 / 120 / -1.80 / 15,627 / 373 / 1 / Algae in silt layer from ice-proximal side of ridge
TK14C-10-50 / OS-92250 / HM / 13,050 / 55 / -1.87 / 15,605 / 242 / 1 / Algae from ridge
MJ14C-11-22 / OS-105055 / GS / 13,050 / 45 / -7.4 / 15,606 / 233 / 1 / Algae in silty sand in basaltic mound
ED14C-11-13 / OS-95925 / GS / 13,050 / 120 / -4.73 / 15,627 / 373 / 1 / Algal layer in silty sandy gravel in ice-distal side of ridge
MJ14C-11-18 / OS-105054 / GS / 13,000 / 40 / -5.25 / 15,539 / 211 / 1 / Algae in poorly sorted sand and gravel in proximal side of ridge
PS14C-11-34 / OS-96650 / GS / 12,950 / 110 / -5.35 / 15,493 / 337 / 1 / Algae pieces in fine silt layer interbedded with coarse sand in mound
PR14C-11-21 / OS-100056 / MM / 12,950 / 95 / -2.34 / 15,489 / 302 / 1 / Multiple algal layers interbedded in silt and sand in ice-proximal side of ridge
ED14C-11-50 / OS-96638 / HH / 12,950 / 120 / -6.27 / 15,498 / 361 / 1 / Algae in silty sand in mound
CM14C-10-9 / OS-92284 / HM / 12,900 / 45 / -4.17 / 15,417 / 204 / 1 / Abundant algae wrapped around gravel in ridge crest
BH14C-11-19 / OS-95937 / GS / 12,900 / 120 / -6.38 / 15,445 / 366 / 1 / Algae in silt in ridge crest
ED14C-11-28 / OS-100067 / SH / 12,900 / 90 / -2.67 / 15,435 / 289 / 1 / Algae wrapped around gravel in ridge crest
BH14C-11-74 / OS-96632 / HH / 12,900 / 110 / -2.22 / 15,441 / 335 / 1 / Algae in poorly sorted gravel and coarse sand in mound
BH14C-95-106 / AA-20662 / HH / 12,865 / 90 / -13.1 / 15,398 / 292 / 1 / Algae in fine sand in ridge
BH14C-11-20 / OS-95988 / GS / 12,850 / 65 / -6.15 / 15,362 / 235 / 1 / In silt layer in crest of ridge
ED14C-11-47 / OS-96637 / HH / 12,850 / 110 / -4.34 / 15,381 / 360 / 1 / Algae from silty fine sand in crest of mound
BH14C-11-68 / OS-96630 / HH / 12,850 / 110 / -5.37 / 15,381 / 360 / 1 / Algae in fine sorted sand in ridge crest
MJ14C-11-41 / OS-100355 / HH / 12,850 / 110 / -3.15 / 15,381 / 360 / 1 / Algae in layer of moderately well-sorted sand in ice-proximal slope of ridge
ED14C-11-12 / OS-100065 / GS / 12,800 / 95 / -4.99 / 15,290 / 346 / 1 / Algae in fine sand layer below rocky surface in ice-proximal side
BH14C-95-144 / AA-20672 / HH / 12,785 / 90 / -9.4 / 15,265 / 336 / 1 / Algae in fine gray sand under rocky surface in ridge
PS14C-11-43 / OS-100352 / HH / 12,750 / 100 / -5.87 / 15,176 / 395 / 0.98 / Algae in fine silt under gravel in ice-proximal side of ridge crest
MJ14C-11-44 / OS-100357 / HH / 12,750 / 100 / -6.14 / 15,176 / 395 / 1 / Algae in gravel layer in ice-proximal side of ridge
BH14C-11-44 / OS-96621 / GS / 12,700 / 120 / -5.37 / 15,033 / 533 / 1 / Abundant algae in medium-coarse stratified sand in ice-proximal side of ridge
BH14C-95-120 / AA-20667 / HH / 12,665 / 110 / -5.7 / 14,915 / 494 / 1 / Algae in well-sorted mica sand in ridge
ED14C-11-51 / OS-96639 / HH / 12,650 / 110 / -5.21 / 14,870 / 490 / 1 / Algae in fine gravelly sand in ice-proximal side of ridge
ED14C-11-20 / OS-105052 / GS / 12,650 / 45 / -6.56 / 15,009 / 217 / 1 / Abundant algae from dipping bed in proximal side of ridge crest
TK14C-10-48 / OS-92290 / MM / 12,600 / 45 / -3.82 / 14,939 / 226 / 1 / Algae in ridge crest
BH14C-11-54 / OS-96624 / HH / 12,600 / 110 / -6.72 / 14,789 / 479 / 1 / Layer of algae in fine sand in ice-distal side of ridge
MJ14C-11-14 / OS-95989 / GS / 12,600 / 65 / -4.37 / 14,896 / 323 / 1 / Algae in layer of fine silt in ice-proximal side of mound
ED14C-11-24 / OS-95924 / GS / 12,600 / 110 / -5.01 / 14,789 / 479 / 1 / Algae wrapped around gravel in ice-proximal side of ridge
BH14C-11-45 / OS-104170 / GS / 12,600 / 40 / -4.49 / 14,941 / 213 / 1 / Thick layer of algae in fine sand in ridge
PS14C-11-24 / OS-95992 / SH / 12,550 / 65 / -3.76 / 14,772 / 374 / 1 / Algae in fine sand in mound
TK14C-10-74 / OS-90185 / MM / 12,550 / 45 / -0.44 / 14,787 / 354 / 1 / Algae in fine sand layer interbedded with gravel from mound
TK14C-10-49 / OS-88286 / MM / 12,500 / 65 / -3.07 / 14,683 / 393 / 1 / Algae from mound
PR14C-11-36 / OS-100361 / HH / 12,500 / 95 / -5.14 / 14,672 / 441 / 1 / In fine sand in ice-proximal side of ridge crest
BH14C-11-62 / OS-96626 / BG / 12,500 / 110 / -2.69 / 14,664 / 465 / 1 / Algae in fine, well-sorted sand in ice-contact delta
MJ14C-11-21 / OS-100100 / GS / 12,450 / 100 / -4.29 / 14,613 / 448 / 1 / Algal in interbedded silt and sand in ice-proximal side of mound
MJ14C-11-23 / OS-95990 / GS / 12,450 / 60 / -3.85 / 14,601 / 383 / 1 / Algae in silt layer in distal flank of ridge
PS14C-11-33 / OS-100227 / GS / 12,450 / 75 / -5.66 / 14,606 / 409 / 1 / Algae in fine sand layer interbedded with coarse sand layers in mound crest
ED14C-11-29 / OS-95994 / SH / 12,450 / 60 / -7.38 / 14,601 / 383 / 1 / Algae wrapped around gravel in the ice-proximal slope of ridge
ED14C-11-44 / OS-100126 / BG / 12,400 / 95 / -2.22 / 14,547 / 435 / 1 / Algae in sandy silt in ridge crest
PS14C-11-36 / OS-96651 / HH / 12,400 / 110 / -6.26 / 14,561 / 464 / 1 / Algae between layer of fine silt and coarse sand in ice-proximal side of ridge
ED14C-11-43 / OS-100125 / HH / 12,400 / 95 / -6.21 / 14,547 / 435 / 1 / Algal layer within silty sand in ice-proximal side of ridge
ED14C-11-48 / OS-100128 / HH / 12,400 / 100 / -5.33 / 14,552 / 445 / 1 / Algae from silty fine sand in ridge crest
TK14C-11-30 / OS-96657 / MM / 12,300 / 120 / -1.43 / 14,428 / 508 / 1 / Algae from ridge
PR14C-11-35 / OS-100359 / HH / 12,300 / 90 / -3.53 / 14,382 / 400 / 1 / Algae in fine sand in ice-distal side of mound
PS14C-11-39 / OS-96652 / HH / 12,300 / 110 / -3.48 / 14,420 / 481 / 1 / Layer of algae in fine silt in ice-proximal side of ridge crest
BH14C-11-79 / OS-96634 / HH / 12,300 / 110 / -5.92 / 14,420 / 481 / 1 / Algae in fine sand in ridge
BH14C-95-119 / AA-20666 / HH / 12,259 / 77 / -19.0 / 14,306 / 351 / 1 / Algae in fine sand in ridge
MJ14C-11-29 / OS-95993 / SH / 12,250 / 60 / -4.34 / 14,228 / 261 / 1 / Algae in sandy gravel in ice-proximal side of ridge
BH14C-11-23 / OS-96485 / WV / 12,250 / 90 / +1.77 / 14,293 / 388 / 0.98 / Algae in fine sand in crest of ridge
ED14C-11-52 / OS-100225 / HH / 12,250 / 65 / -6.47 / 14,247 / 291 / 1 / Algae in silty sand in ice-contact delta
MJ14C-11-43 / OS-96644 / HH / 12,200 / 100 / -7.21 / 14,164 / 398 / 1 / Algae in gravel in ice-proximal side of ridge
ED14C-11-22 / OS-95991 / GS / 12,200 / 70 / -8.11 / 14,084 / 270 / 1 / Layer of algae between layers of fine and coarse sand in crest of mound
CM14C-10-10 / OS-92682 / MG / 12,150 / 55 / -0.45 / 14,001 / 181 / 1 / Algae from sand and gravel in hummocky ridge
BH14C-11-22 / OS-96478 / WV / 12,100 / 95 / +2.58 / 13,972 / 231 / 1 / Algae in sorted gravel in moraine crest
PR14C-11-12 / OS100358 / WV / 12,100 / 90 / +3.41 / 13,964 / 216 / 1 / Algae in layer of medium-grained sand in ridge
ED14C-11-10 / OS-100064 / GS / 12,100 / 85 / -8.61 / 13,958 / 205 / 1 / Algae in gravelly sand in ice-proximal side of ridge
MJ14C-11-13 / OS-95938 / GS / 12,100 / 100 / -10.63 / 13,982 / 250 / 1 / Algal layer within fine, well-sorted silt in ice-proximal side of ridge
MJ14C-11-37 / OS-100354 / HH / 12,100 / 95 / -4.47 / 13,972 / 231 / 1 / Algae in layer of fine, well-sorted sand in ice-proximal side of ridge
MJ14C-11-42 / OS100356 / HH / 12,100 / 90 / -6.26 / 13,964 / 216 / 1 / Algae from very fine, well-sorted sand in ice-proximal side of ridge
BH14C-11-63 / OS-96627 / BG / 12,050 / 110 / -3.44 / 13,931 / 241 / 0.96 / Algae in fine sorted sand in ice-contact delta
MJ14C-11-39 / OS-96643 / HH / 12,050 / 100 / -7.59 / 13,937 / 232 / 0.99 / Algae in fine, well-sorted sand in ice-proximal slope of ridge
BH14C-11-25 / OS-100116 / WV / 12,000 / 85 / +0.40 / 13,890 / 195 / 0.95 / Algae in fine, well-sorted sand
MJ14C-11-24 / OS-100101 / GS / 12,000 / 90 / -2.8 / 13,886 / 196 / 0.94 / Algae in silty sand in ridge
ED14C-11-53 / OS-96640 / HH / 12,000 / 100 / -6.35 / 13,839 / 253 / 1 / Algae in fine silty sand in mound crest
MJ14C-11-34 / OS-96642 / HH / 11,950 / 100 / -5.58 / 13,807 / 249 / 1 / Algae in well-sorted sand in ice-proximal slope of ridge
TK14C-11-42 / OS-96658 / HM / 11,950 / 100 / -0.35 / 13,807 / 249 / 1 / Algae wrapped around gravel and cobbles in basaltic bench
TK14C-10-80 / OS-88369 / MG / 11,800 / 60 / -4.82 / 13,616 / 134 / 1 / Algae wrapped around gravel in flat-topped mound
BH14C-11-56 / OS-104236 / HH / 11,800 / 75 / -4.25 / 13,615 / 145 / 1 / Algae in stratified fine sand in distal slope of ridge
GM14C-10-11 / OS-88407 / MM / 11,800 / 90 / +0.8 / 13,615 / 168 / 1 / Algae in ridge crest
BH14C-95-113 / AA-20664 / HH / 11,800 / 85 / -14.0 / 13,615 / 158 / 1 / Algae in fine, laminated, mica-rich sand in ridge
BH14C-11-78 / OS-96633 / HH / 11,750 / 100 / -4.36 / 13,582 / 192 / 1 / Algae in coarse sand below rocks in mound
ED14C-11-18 / OS-100123 / WV / 11,450 / 90 / +0.55 / 13,286 / 171 / 1 / Algae in silty sand and gravel in terrace proximal to main ridge
ED14C-11-56 / OS-100226 / HH / 11,400 / 80 / -2.73 / 13,248 / 158 / 1 / Algae in sand in mound
ED14C-11-45 / OS-100127 / BG / 11,350 / 85 / -3.04 / 13,216 / 154 / 1 / Algae from poorly sorted silty sand from ridge crest
PS14C-11-41 / OS-96653 / BG / 11,350 / 90 / -0.43 / 13,222 / 163 / 1 / Algae from fine silt in ridge crest
TK14C-10-61 / OS-92245 / HM / 11,300 / 55 / 0.38 / 13,168 / 101 / 1 / Abundant flakes of algae in well-sorted fine sand interbedded with gravel layers in mound
TK14C-11-2 / OS-96655 / MM / 11,150 / 95 / -4.64 / 12,986 / 208 / 1 / Algae in contorted, folded silt beds in ice-contact slope
BH14C-11-72 / OS-100120 / HH / 11,150 / 80 / -6.19 / 12,975 / 178 / 1 / Algae in fine sand interbedded with gravel in ridge
ED14C-11-17 / OS-100122 / WV / 10,950 / 75 / +2.16 / 12,854 / 147 / 1 / Algae wrapped around gravel in sandy gravel in ridge crest
BH14C-95-139 / AA-20671 / HH / 10,945 / 80 / -8.1 / 12,854 / 150 / 1 / Algae in fine stratified sand in ridge