Lab number Site Province / State Normalized age δ13C (per mil)
ISGS-154
ISGS-1540 11JY72 (Pere Marquette) 1070 ± 70 -26.0
ISGS-1541 11JY72 (Pere Marquette) 980 ± 70 -25.2
ISGS-1542 15CE19 (Indian Camp Lake) KY 3220 ± 70
ISGS-1543 15FU24 (White) KY 640 ± 70
ISGS-1544 15FU24 (White) KY 560 ± 70
ISGS-1545 11BR242 (Buckshaw Bridge) IL 4510 ± 70
ISGS-1546 2300 ± 250
ISGS-1547 11JY72 (Pere Marquette) 850 ± 70 -10.0
ISGS-1548 1660 ± 70
ISGS-1549 13870 ± 170
ISGS-155
ISGS-1551 11C383 (Mortland Island) IL 1400 ± 70 -24.5
ISGS-1553 11C383 (Mortland Island) IL 1300 ± 70 -25.2
ISGS-1555 14WY8 (Miller) KS 1590 ± 15
ISGS-1557 23PL285 MO 2005 ± 15 -27.2
ISGS-1559 14WY8 (Miller) KS 1555 ± 15 -15.5
ISGS-156
ISGS-1565 14MY388 (Eastep) KS 2210 ± 15 -25.2
ISGS-1570 14100 ± 640
ISGS-1572 11MS517 (Sponemann) IL 1340 ± 70
ISGS-1573 11MS128 (Notchta) IL 6490 ± 90
ISGS-1582 11JY72 (Pere Marquette) 1000 ± 70 -25.0
ISGS-1585 11JY72 (Pere Marquette) 990 ± 70 -26.5
ISGS-1586 11JY72 (Pere Marquette) 840 ± 70 -24.9
ISGS-159
ISGS-1597 15FU67 (Running Slough) KY 890 ± 90
ISGS-16 35Lnc,DevilsLake (35Lnc, Devils Lake)
ISGS-1600 22HO650 (Upland Farmstead) 590 ± 70
ISGS-1601 22HO650 (Upland Farmstead) 650 ± 70