Decadal averages oxygen isotopic ratio Note: the period of time represented in the most recent decadal average is not identical among the cores as they were collected at different times. Guliya Dunde Dasuopu date at date drilled date at date drilled date at date drilled Sajama data ok checked Huascaran Core 2 6 core composite top of 1992 top of 1987 top of 1997 d18O decadal avgs So Am composite interval A.D. interval A.D. interval A.D. to decade bottom first value 1990 to 1993 NA NA NA NA 1997 -17.34 2000 1990 -16.91 -0.11 2000 1990 -15.87 3.09 0.992 0.496 1990 -12.35 1987 -10.09 1990 -18.58 1990 1980 -17.20 -0.31 1990 1980 -17.32 1.36 0.350 0.175 1980 -13.75 1980 -10.33 1980 -17.67 1980 1970 -18.72 -1.31 1980 1970 -18.20 0.29 -0.340 -0.170 1970 -12.63 1970 -10.39 1970 -17.97 1970 1960 -16.40 0.22 1970 1960 -16.46 2.38 0.869 0.435 1960 -13.74 1960 -9.74 1960 -17.91 1960 1950 -16.39 0.23 1960 1950 -17.88 0.68 0.304 0.152 1950 -12.78 1950 -9.22 1950 -17.14 1950 1940 -15.41 0.88 1950 1940 -17.18 1.52 0.801 0.401 1940 -13.46 1940 -9.43 1940 -18.41 1940 1930 -16.92 -0.12 1940 1930 -16.93 1.82 0.565 0.282 1930 -13.29 1930 -9.85 1930 -19.01 1930 1920 -17.88 -0.76 1930 1920 -17.39 1.27 0.172 0.086 1920 -14.22 1920 -9.74 1920 -19.78 1920 1910 -17.82 -0.72 1920 1910 -18.10 0.41 -0.102 -0.051 1910 -14.18 1910 -10.86 1910 -18.58 1910 1900 -16.13 0.40 1910 1900 -17.84 0.73 0.377 0.189 1900 -14.10 1900 -10.16 1900 -20.24 1900 1890 -17.97 -0.82 1900 1890 -18.99 -0.65 -0.490 -0.245 1890 -12.28 1890 -9.89 1890 -18.65 1890 1880 -16.86 -0.08 1890 1880 -17.19 1.51 0.475 0.238 1880 -15.86 1880 -11.63 1880 -18.65 1880 1870 -19.51 -1.84 1880 1870 -16.50 2.34 0.167 0.084 1870 -14.77 1870 -10.00 1870 -20.20 1870 1860 -17.82 -0.72 1870 1860 -17.49 1.15 0.144 0.072 1860 -15.29 1860 -10.08 1860 -18.98 1860 1850 -17.06 -0.21 1860 1850 -17.87 0.69 0.160 0.080 1850 -14.75 1850 -10.56 1850 -19.72 1850 1840 -16.35 0.26 1850 1840 -17.96 0.58 0.279 0.140 1840 -17.14 1840 -10.24 1840 -19.97 1840 1830 -16.06 0.45 1840 1830 -17.29 1.38 0.611 0.305 1830 -14.38 1830 -10.77 1830 -19.35 1830 1820 -19.77 -2.01 1830 1820 -16.64 2.17 0.054 0.027 1820 -13.59 1820 -10.70 1820 -20.67 1820 1810 -18.71 -1.31 1820 1810 -18.18 0.32 -0.330 -0.165 1810 -17.83 1810 -10.19 1810 -19.63 1810 1800 -17.48 -0.49 1810 1800 -17.13 1.58 0.364 0.182 1800 -15.17 1800 -10.60 1800 -18.67 1800 1790 -15.13 1.07 1800 1790 -16.41 2.45 1.170 0.585 1790 -14.39 1790 -11.38 1790 -21.52 1790 1780 -16.90 -0.11 1790 1780 -16.71 2.08 0.657 0.329 1780 -13.96 1780 -11.63 1780 -21.04 1780 1770 -17.23 -0.33 1780 1770 -18.46 -0.01 -0.112 -0.056 1770 -14.86 1770 -10.82 1770 -21.08 1770 1760 -18.22 -0.98 1770 1760 -17.23 1.46 0.158 0.079 1760 -15.60 1760 -10.19 1760 -19.63 1760 1750 -16.59 0.10 1760 1750 -18.33 0.15 0.081 0.040 1750 -15.16 1750 -10.60 1750 -19.29 1750 1740 -18.32 -1.05 1750 1740 -18.14 0.37 -0.225 -0.113 1740 -13.24 1740 -10.51 1740 -21.99 1740 1730 -18.60 -1.23 1740 1730 -19.34 -1.07 -0.767 -0.383 1730 -14.92 1730 -10.43 1730 -19.77 1730 1720 -17.20 -0.31 1730 1720 -20.06 -1.93 -0.744 -0.372 1720 -15.11 1720 -9.74 1720 -20.68 1720 1710 -18.35 -1.07 1720 1710 -19.57 -1.34 -0.803 -0.401 1710 -15.60 1710 -9.75 1710 -19.93 1710 1700 -18.42 -1.11 1710 1700 -18.16 0.35 -0.254 -0.127 1700 -14.11 1700 -10.02 1700 -19.42 1700 1690 -16.75 -0.01 1700 1690 -18.74 -0.35 -0.120 -0.060 1690 -15.50 1690 -10.22 1690 -19.58 1690 1680 -17.65 -0.60 1690 1680 -19.04 -0.71 -0.437 -0.219 1680 -15.14 1680 -11.56 1680 -19.28 1680 1670 -16.60 0.09 1680 1670 -18.97 -0.62 -0.177 -0.089 1670 -13.44 1670 -11.47 1670 -20.63 1670 1660 -16.56 0.12 1670 1660 -19.12 -0.80 -0.229 -0.114 1660 -12.54 1660 -12.18 1660 -20.72 1660 1650 -18.22 -0.98 1660 1650 -19.19 -0.88 -0.622 -0.311 1650 -13.44 1650 -11.98 1650 -19.95 1650 1640 -17.57 -0.55 1650 1640 -19.27 -0.98 -0.511 -0.255 1640 -14.15 1640 -10.44 1640 -20.04 1640 1630 -17.68 -0.62 1640 1630 -19.29 -1.00 -0.542 -0.271 1630 -12.91 1630 -11.18 1630 -20.84 1630 1620 -20.36 -2.40 1630 1620 -19.39 -1.12 -1.174 -0.587 1620 -13.44 1620 -12.40 1620 -21.29 1620 1610 -14.50 1.48 1620 1610 -18.85 -0.48 0.335 0.168 1610 -13.70 1610 -10.83 1610 -20.78 1610 1600 -16.21 0.35 1610 1600 -19.59 -1.36 -0.338 -0.169 1600 -13.80 1600 -10.61 1600 -21.10 1600 1590 -17.07 -0.22 1600 1590 -18.74 -0.35 -0.191 -0.096 1590 -14.20 1590 -11.15 1590 -20.83 1590 1580 -16.06 0.45 1590 1580 -19.76 -1.57 -0.372 -0.186 1580 -14.41 1580 -10.24 1580 -20.53 1580 1570 -17.35 -0.41 1580 1570 -19.37 -1.11 -0.505 -0.252 1570 -14.36 1570 -10.15 1570 -20.71 1570 1560 -16.75 -0.01 1570 1560 -19.58 -1.36 -0.455 -0.227 1560 -11.71 1560 -11.13 1560 -20.69 1560 1550 -17.54 -0.53 1560 1550 -18.77 -0.39 -0.307 -0.154 1550 -14.56 1550 -10.20 1550 -19.98 1550 1540 -20.27 -2.34 1550 1540 -19.19 -0.89 -1.076 -0.538 1540 -14.68 1540 -11.56 1540 -20.56 1540 1530 -17.09 -0.23 1540 1530 -19.21 -0.91 -0.380 -0.190 1530 -12.87 1530 -10.80 1530 -20.71 1530 1520 -14.94 1.19 1530 1520 -19.04 -0.71 0.161 0.080 1520 -15.19 1520 -10.06 1520 -21.33 1520 1510 -17.67 -0.62 1520 1510 -19.69 -1.49 -0.701 -0.351 1510 -14.84 1510 -11.73 1510 -20.56 1510 1500 -15.16 1.05 1510 1500 -19.15 -0.83 0.070 0.035 1500 -16.23 1500 -10.48 1500 -19.93 1500 1490 -16.82 -0.05 1500 1490 -19.58 -1.35 -0.470 -0.235 1490 -14.67 1490 -10.93 1490 -20.34 1490 1480 -17.99 -0.83 1490 1480 -19.44 -1.19 -0.673 -0.336 1480 -13.07 1480 -11.56 1480 -20.58 1480 1470 -17.23 -0.33 1480 1470 -19.31 -1.03 -0.453 -0.226 1470 -13.17 1470 -11.29 1470 -20.77 1470 1460 -13.92 1.87 1470 1460 -19.20 -0.90 0.323 0.161 1460 -14.57 1460 -11.06 1460 -20.24 1460 1450 -17.68 -0.62 1460 1450 -19.03 -0.70 -0.441 -0.221 1450 -12.17 1450 -11.20 1450 -21.29 1450 1440 -17.47 -0.49 1450 1440 -19.10 -0.78 -0.422 -0.211 1440 -15.50 1440 -10.69 1440 -20.60 1440 1430 -17.94 -0.80 1440 1430 -19.64 -1.42 -0.740 -0.370 1430 -13.14 1430 -12.41 1430 -21.38 1430 1420 -11.68 3.35 1430 1420 -19.04 -0.71 0.879 0.440 1420 -13.42 1420 -10.89 1420 -20.79 1420 1410 -16.55 0.12 1420 1410 -19.25 -0.95 -0.277 -0.138 1410 -12.96 1410 -12.03 1410 -21.09 1410 1400 -16.69 0.03 1410 1400 -19.06 -0.73 -0.233 -0.117 1400 -12.26 1400 -12.80 1400 -20.46 1400 1390 -15.33 0.93 1400 1390 -18.80 -0.42 0.172 0.086 1390 -12.52 1390 -11.03 1390 -19.81 1390 1380 -16.99 -0.17 1390 1380 -18.65 -0.24 -0.137 -0.068 1380 -14.24 1380 -11.31 1380 -20.60 1380 1370 -13.79 1.95 1380 1370 -18.56 -0.13 0.606 0.303 1370 -13.92 1370 -11.36 1370 -20.71 1370 1360 -15.43 0.87 1370 1360 -18.93 -0.58 0.097 0.048 1360 -14.58 1360 -12.83 1360 -20.27 1360 1350 -13.79 1.95 1360 1350 -19.23 -0.94 0.339 0.170 1350 -14.17 1350 -11.09 1350 -20.36 1350 1340 -16.14 0.40 1350 1340 -18.96 -0.61 -0.073 -0.036 1340 -14.83 1340 -11.27 1340 -20.69 1340 1330 -18.39 -1.10 1340 1330 -18.80 -0.42 -0.506 -0.253 1330 -13.34 1330 -11.30 1330 -21.03 1330 1320 -17.73 -0.66 1330 1320 -18.20 0.30 -0.121 -0.060 1320 -15.78 1320 -10.10 1320 -20.41 1320 1310 -14.68 1.36 1320 1310 -18.54 -0.11 0.418 0.209 1310 -13.93 1310 -11.37 1310 -21.12 1310 1300 -17.31 -0.38 1310 1300 -18.35 0.11 -0.089 -0.044 1300 -14.69 1300 -11.23 1300 -20.35 1300 1290 -16.55 0.12 1300 1290 -18.46 -0.01 0.038 0.019 1290 -16.21 1290 -11.52 1290 -20.42 1290 1280 -14.16 1.71 1290 1280 -18.84 -0.47 0.412 0.206 1280 -17.57 1280 -10.93 1280 -21.00 1280 1270 -15.95 0.52 1280 1270 -18.62 -0.20 0.107 0.054 1270 -16.91 1270 -11.04 1270 -20.24 1270 1261 -17.11 -0.25 1270 1260 -18.49 -0.05 -0.100 -0.050 1260 -17.58 1260 -10.76 1260 -20.44 1260 1250 -16.79 -0.03 1260 1250 -18.12 0.39 0.119 0.059 1250 -14.23 1250 -10.20 1250 -21.12 1250 1240 -16.72 0.01 1250 1241 -18.41 0.05 0.019 0.009 1240 -13.81 1240 -10.69 1240 -19.67 1240 1231 -15.12 1.07 1240 1230 -18.71 -0.31 0.255 0.127 1230 -13.53 1230 -9.56 1230 -20.89 1230 1220 -15.90 0.55 1230 1220 -18.27 0.21 0.255 0.127 1220 -13.18 1220 -9.84 1220 -21.30 1220 1210 -15.48 0.83 1220 1210 -18.54 -0.11 0.242 0.121 1210 -15.38 1210 -10.58 1210 -20.69 1210 1201 -18.02 -0.85 1210 1200 -18.44 0.01 -0.278 -0.139 1200 -15.49 1200 -9.88 1200 -21.34 1200 1190 -16.12 0.41 1200 1190 -18.31 0.16 0.190 0.095 1190 -12.89 1190 -10.28 1190 -20.78 1190 1181 -15.03 1.13 1190 1180 -17.68 0.92 0.683 0.341 1180 -13.46 1180 -10.86 1180 -21.08 1180 1170 -15.91 0.55 1180 1170 -17.81 0.77 0.439 0.220 1170 -12.77 1170 -11.79 1170 -20.98 1170 1160 -16.42 0.21 1170 1160 -18.21 0.29 0.166 0.083 1160 -13.84 1160 -11.76 1160 -20.77 1160 1150 -14.25 1.65 1160 1151 -17.54 1.09 0.912 0.456 1150 -13.95 1150 -10.64 1150 -20.50 1150 1140 -15.25 0.99 1150 1140 -18.26 0.23 0.404 0.202 1140 -13.67 1140 -11.60 1140 -20.67 1140 1130 -15.66 0.71 1140 1131 -18.24 0.26 0.323 0.162 1130 -12.12 1130 -11.39 1130 -21.94 1130 1120 -14.10 1.75 1130 1120 -18.29 0.18 0.644 0.322 1120 -14.95 1120 -11.12 1120 -21.38 1120 1111 -16.75 -0.01 1120 1110 -18.57 -0.15 -0.051 -0.026 1110 -14.46 1110 -9.98 1110 -20.89 1110 1100 -16.64 0.06 1110 1100 -18.43 0.03 0.030 0.015 1100 -12.52 1100 -9.64 1100 -21.48 1100 1091 -17.03 -0.19 1100 1090 -18.50 -0.06 -0.083 -0.042 1090 -14.14 1090 -11.19 1090 -21.22 1090 1080 -17.04 -0.20 1090 1080 -18.75 -0.36 -0.186 -0.093 1080 -14.49 1080 -10.49 1080 -21.73 1080 1071 -19.48 -1.82 1080 1070 -18.03 0.50 -0.439 -0.219 1070 -14.35 1070 -11.23 1070 -20.56 1070 1061 -14.69 1.36 1070 1060 -18.05 0.48 0.611 0.305 1060 -14.04 1060 -10.80 1060 -20.71 1060 1050 -17.69 -0.63 1060 1050 -18.45 0.00 -0.210 -0.105 1050 -14.58 1050 -10.98 1050 -21.93 1050 1040 -17.76 -0.68 1050 1041 -18.37 0.09 -0.194 -0.097 1040 -14.43 1040 -11.64 1040 -21.71 1040 1030 -19.36 -1.74 1040 1030 -18.41 0.05 -0.564 -0.282 1030 -13.83 1030 -10.80 1030 -21.52 1030 1020 -15.02 1.14 1030 1020 -18.89 -0.53 0.203 0.102 1020 -14.65 1020 -10.74 1020 -21.47 1020 1011 -14.38 1.56 1020 1010 -18.71 -0.31 0.416 0.208 1010 -14.75 1010 -11.37 1010 -22.18 1010 1000 -15.47 0.84 1010 1000 -18.09 0.43 0.423 0.212 -16.7373 0.00 -18.4488 -0.01 -0.002 -0.001 1.5092 0.8349