Western Atlantic Deglacial Paired Benthic Mg/Ca and d18O Data ----------------------------------------------------------------------- World Data Center for Paleoclimatology, Boulder and NOAA Paleoclimatology Program ----------------------------------------------------------------------- NOTE: PLEASE CITE ORIGINAL REFERENCE WHEN USING THIS DATA!!!!! NAME OF DATA SET: Western Atlantic Deglacial Paired Benthic Mg/Ca and d18O Data LAST UPDATE: 10/2011 (Original receipt by WDC Paleo) CONTRIBUTORS: Came, R.E., W.B. Curry, D.W. Oppo, A.J. Broccoli, R.J. Stouffer, and J. Lynch-Stieglitz. IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2011-133 WDC PALEO CONTRIBUTION SERIES CITATION: Came, R.E., et al. 2011. Western Atlantic Deglacial Paired Benthic Mg/Ca and d18O Data. IGBP PAGES/World Data Center for Paleoclimatology Data Contribution Series # 2011-133. NOAA/NCDC Paleoclimatology Program, Boulder CO, USA. ORIGINAL REFERENCE: Came, R.E., W.B. Curry, D.W. Oppo, A.J. Broccoli, R.J. Stouffer, and J. Lynch-Stieglitz. 2007. North Atlantic Intermediate Depth Variability During the Younger Dryas: Evidence From Benthic Foraminiferal Mg/Ca and the GFDL R30 Coupled Climate Model. in Past and Future Changes of the Ocean's Meridional Overturning Circulation: Mechanisms and Impacts, Geophysical Monograph Series, edited by A. Schmittner, J. Chiang, and S. Hemming, American Geophysical Union, Washington, D.C, pp. 247-263, doi:10.1029/173GM16. ABSTRACT: Two new records of paired benthic foraminiferal Mg/Ca and d18O from two low latitude western Atlantic sediment cores - one taken from within the Florida Current and the other from the Little Bahama Bank - provide insights into the spatial distribution of intermediate depth temperature and salinity variability during the deglaciation. During the Younger Dryas cold event, both temperature and salinity increased at the Florida Current site and decreased at the Little Bahama Bank site. The temperature increase within the Florida Current is consistent with a reduction in the strength of the northward-moving surface return flow of the Atlantic meridional overturning circulation; the temperature decrease at the Little Bahama Bank is consistent with a cooling of high latitude North Atlantic surface waters. To test the possibility that a freshening of the surface North Atlantic caused the paleoceanographic changes during the Younger Dryas, the Geophysical Fluid Dynamics Laboratory (GFDL) R30 coupled ocean-atmosphere general circulation model was forced using a North Atlantic freshwater perturbation of 0.1 Sv for a period of 100 years. The freshwater flux causes an overall reduction in the Atlantic overturning from 25 Sv to 13 Sv. However, at ~1,100 m water depth, ventilation increases, causing decreases in both temperature and salinity throughout much of the intermediate depth, open-ocean North Atlantic. At the western boundary, intermediate depth temperatures and salinities increase due to weakened overturning, and also due to an increase in runoff from the Amazon River, which causes a surface stability and a decrease in the upwelling of colder, deeper waters. ADDITIONAL REFERENCES: Slowey, N.C. and W.B. Curry. 1995. Glacial-interglacial differences in circulation and carbon cycling within the upper western North-Atlantic. Paleoceanography, Vol. 10, pp. 715-732. GEOGRAPHIC REGION: Western Tropical Atlantic PERIOD OF RECORD: 27 KYrBP - present FUNDING SOURCES: Woods Hole Oceanographic Institution (WHOI) Ocean and Climate Change Institute, Agricultural Experiment Station Project NJ07167, US National Science Foundation (NSF) grants OCE0096495, ATM0502428, OCE0096472, OCE0220776, and ATM0501351. DESCRIPTION: Benthic foraminiferal Mg/Ca and d18O data from two sediment cores collected in the Florida Current and the Little Bahama Bank covering the last deglacial interval. Core OCE205-2-100GGC, Little Bahama Bank: 26.06°N, 78.03°W, 1,057 m water depth Core KNR166-2-31JPC, Florida Current: 24.22°N, 83.30°W, 751 m water depth DATA: 1. Came et al. 2007 KNR166-2-31JPC Cibicidoides spp. d18O data Calendar ages are based on radiocarbon dates converted to calendar age using Calib 5.02 and a reservoir correction of 400 years. Depth Calendar Age Number of d18O Mean d18O (cm) (yrs BP) Individuals Species (permil) (permil) 0.50 1,204 3 C. pachyderma 2.19 2.19 2.25 1,415 1 C. wuellerstorfi 2.13 2.14 2.25 1 C. wuellerstorfi 2.15 4.25 1,657 3 C. pachyderma 2.23 2.23 6.25 1,899 1 C. pachyderma 2.12 2.05 6.25 1 C. wuellerstorfi 1.99 8.00 2,110 3 C. pachyderma 2.24 2.24 10.25 2,382 1 C. pachyderma 2.14 1.89 10.25 1 C. wuellerstorfi 1.83 10.25 1 C. wuellerstorfi 1.71 12.25 2,623 3 C. pachyderma 2.21 2.21 14.25 2,865 1 C. pachyderma 2.06 2.12 14.25 1 C. wuellerstorfi 2.14 14.25 1 C. wuellerstorfi 2.18 16.00 3,076 3 C. pachyderma 2.18 2.18 18.25 3,348 1 C. pachyderma 2.64 2.37 18.25 1 C. pachyderma 2.01 18.25 1 C. pachyderma 2.47 20.25 3,590 3 C. pachyderma 2.42 2.42 22.00 3,801 1 C. pachyderma 2.37 2.19 22.25 1 C. wuellerstorfi 2.01 24.00 4,043 4 C. pachyderma 2.14 2.14 26.00 4,284 1 C. pachyderma 2.17 2.36 26.00 1 C. pachyderma 2.54 28.25 4,549 2 C. pachyderma 2.29 2.29 30.00 4,706 1 C. pachyderma 2.09 2.19 30.00 1 C. pachyderma 2.27 30.00 1 C. pachyderma 2.22 32.00 4,887 4 C. pachyderma 2.30 2.30 34.00 5,067 1 C. pachyderma 2.34 2.42 34.00 1 C. pachyderma 2.50 36.25 5,270 3 C. pachyderma 2.39 2.39 38.25 1 C. wuellerstorfi 2.16 2.16 40.00 5,608 4 C. pachyderma 2.27 2.27 42.00 5,789 1 C. pachyderma 2.16 2.21 42.00 1 C. pachyderma 2.17 42.00 1 C. pachyderma 2.28 44.25 5,992 3 C. pachyderma 2.41 2.41 46.00 6,150 1 C. pachyderma 2.00 2.03 46.00 1 C. pachyderma 2.04 46.25 1 C. wuellerstorfi 2.05 48.00 6,330 4 C. pachyderma 2.26 2.26 50.00 6,510 1 C. pachyderma 2.23 2.15 50.00 1 C. pachyderma 1.88 50.00 1 C. pachyderma 2.35 52.25 6,713 3 C. pachyderma 2.33 2.33 54.00 6,871 1 C. pachyderma 2.08 2.03 54.00 1 C. pachyderma 2.27 54.00 1 C. pachyderma 1.75 56.00 7,051 4 C. pachyderma 2.24 2.24 58.00 7,232 1 C. pachyderma 2.23 2.15 58.00 1 C. pachyderma 1.97 58.00 1 C. pachyderma 2.25 60.25 7,435 3 C. pachyderma 2.47 2.47 62.00 7,593 1 C. pachyderma 2.27 2.22 62.00 1 C. pachyderma 2.07 62.00 1 C. pachyderma 2.32 64.00 7,773 4 C. pachyderma 2.57 2.57 66.00 8,396 1 C. pachyderma 2.34 2.34 66.00 1 C. pachyderma 2.27 66.00 1 C. pachyderma 2.41 70.00 9,641 1 C. pachyderma 2.19 2.16 70.00 1 C. pachyderma 1.94 70.00 1 C. pachyderma 2.34 72.00 10,264 4 C. pachyderma 2.41 2.41 74.00 10,436 1 C. pachyderma 3.45 2.82 74.00 1 C. pachyderma 2.18 78.00 10,780 1 C. pachyderma 2.09 2.13 78.00 1 C. pachyderma 2.22 78.00 1 C. pachyderma 2.07 80.00 10,952 4 C. pachyderma 2.42 2.42 82.00 11,124 1 C. pachyderma 2.44 2.36 82.25 1 C. pachyderma 2.36 82.25 1 C. pachyderma 2.29 86.25 11,498 1 C. pachyderma 2.48 2.45 86.25 1 C. pachyderma 2.42 88.00 11,705 4 C. pachyderma 2.50 2.50 90.25 11,972 1 C. pachyderma 2.55 2.30 90.25 1 C. pachyderma 2.10 90.25 1 C. wuellerstorfi 2.24 94.25 12,447 1 C. pachyderma 2.37 2.30 94.25 1 C. sp. 2.32 94.25 1 C. wuellerstorfi 2.21 96.00 12,655 4 C. pachyderma 2.39 2.39 98.25 12,774 1 C. sp. 2.16 2.51 98.40 1 C. pachyderma 2.86 102.25 12,985 1 C. pachyderma 2.61 2.64 102.25 1 C. pachyderma 2.68 104.00 13,078 4 C. pachyderma 2.77 2.77 106.25 13,196 1 C. pachyderma 2.75 2.79 106.25 1 C. pachyderma 2.79 106.25 1 C. pachyderma 2.84 110.25 13,408 1 C. pachyderma 2.78 2.76 110.25 1 C. pachyderma 2.63 110.25 1 C. pachyderma 2.89 112.00 13,500 4 C. pachyderma 2.76 2.76 114.25 13,639 1 C. pachyderma 2.20 2.45 114.25 1 C. pachyderma 2.69 118.25 13,885 1 C. pachyderma 2.82 2.94 118.40 1 C. pachyderma 3.06 120.00 13,993 4 C. pachyderma 2.88 2.88 122.25 14,132 1 C. pachyderma 3.17 3.10 122.25 1 C. pachyderma 3.03 126.25 14,378 1 C. pachyderma 2.96 2.97 126.25 1 C. pachyderma 3.08 126.25 1 C. pachyderma 2.86 128.00 14,486 4 C. pachyderma 2.40 2.40 130.25 14,625 1 C. pachyderma 3.20 3.05 130.25 1 C. pachyderma 2.89 130.25 1 C. pachyderma 3.06 134.25 14,871 1 C. pachyderma 2.92 2.86 134.25 1 C. wuellerstorfi 2.88 134.25 1 C. wuellerstorfi 2.79 136.00 14,979 1 C. pachyderma 3.00 3.00 138.25 15,118 1 C. pachyderma 2.29 2.49 138.25 1 C. sp. 2.10 138.25 1 C. sp. 3.07 142.25 15,364 1 C. wuellerstorfi 3.17 3.20 142.25 1 C. wuellerstorfi 3.23 146.25 15,648 1 C. pachyderma 3.29 3.29 150.25 15,931 1 C. pachyderma 2.61 2.61 150.25 1 C. pachyderma 2.75 150.25 1 C. pachyderma 2.47 154.25 17,353 1 C. wuellerstorfi 3.74 3.75 154.25 1 C. wuellerstorfi 3.83 154.25 1 C. wuellerstorfi 3.69 158.25 18,775 1 C. pachyderma 3.70 3.72 158.25 1 C. wuellerstorfi 3.77 158.25 1 C. wuellerstorfi 3.68 160.00 19,397 1 C. pachyderma 3.67 3.67 162.25 20,197 1 C. pachyderma 3.82 3.70 162.25 1 C. wuellerstorfi 3.69 162.25 1 C. wuellerstorfi 3.58 166.25 21,619 1 C. wuellerstorfi 3.73 3.65 166.25 1 C. wuellerstorfi 3.58 166.25 1 C. wuellerstorfi 3.65 170.25 23,041 1 C. wuellerstorfi 3.93 3.82 170.25 1 C. wuellerstorfi 3.72 170.25 1 C. wuellerstorfi 3.81 2. Came et al. 2007 KNR166-2-31JPC H. elegans Mg/Ca data. Calendar ages are based on radiocarbon dates converted to calendar age using Calib 5.02 and a reservoir correction of 400 years. Depth Calendar Age Mg/Ca Mean Mg/Ca (cm) (yrs BP) (mmol/mol) (mmol/mol) 0.5 1,204 1.02 1.02 4.0 1,627 1.01 1.01 8.0 2,110 1.09 1.09 12.0 2,593 1.06 1.06 16.0 3,076 1.04 1.04 16.0 3,076 1.03 20.0 3,560 1.02 1.00 20.0 3,560 0.98 24.0 4,043 1.01 1.02 24.0 4,043 1.03 28.0 4,526 1.02 1.02 32.0 4,887 1.05 1.04 32.0 4,887 1.02 36.0 5,248 1.04 1.01 36.0 5,248 0.98 40.0 5,608 1.06 1.06 44.0 5,969 1.14 1.14 48.0 6,330 1.00 1.04 48.0 6,330 1.07 52.0 6,691 1.07 1.09 52.0 6,691 1.11 56.0 7,051 1.13 1.11 56.0 7,051 1.09 60.0 7,412 1.05 1.05 64.0 7,773 1.07 1.07 64.0 7,773 1.06 68.0 9,019 1.09 1.09 68.0 9,019 1.09 72.0 10,264 1.05 1.07 72.0 10,264 1.10 76.0 10,608 1.04 1.04 80.0 10,952 1.16 1.16 84.0 11,296 1.07 1.10 84.0 11,296 1.12 88.0 11,705 1.14 1.21 88.0 11,705 1.28 92.0 12,180 1.21 1.21 96.0 12,655 1.20 1.21 96.0 12,655 1.20 96.0 12,655 1.24 100.0 12,866 1.27 1.18 100.0 12,866 1.10 104.0 13,078 1.07 1.18 104.0 13,078 1.16 104.0 13,078 1.27 104.0 13,078 1.24 108.0 13,289 1.25 1.13 108.0 13,289 1.12 108.0 13,289 1.07 108.0 13,289 1.10 112.0 13,500 1.13 1.15 112.0 13,500 1.18 116.0 13,747 1.10 1.13 116.0 13,747 1.19 116.0 13,747 1.11 120.0 13,993 1.00 1.05 120.0 13,993 1.16 120.0 13,993 1.01 120.0 13,993 1.04 124.0 14,240 1.17 1.15 124.0 14,240 1.20 124.0 14,240 1.10 124.0 14,240 1.12 128.0 14,486 1.12 1.22 128.0 14,486 1.20 128.0 14,486 1.33 128.0 14,486 1.22 132.0 14,733 1.14 1.14 140.0 15,226 1.03 1.03 144.0 15,472 1.23 1.26 144.0 15,472 1.30 148.0 15,719 0.98 0.98 152.0 16,553 1.07 1.07 168.0 22,241 1.11 1.11 3. Came et al. 2007, Slowey and Curry 1995 OCE205-2-100GGC Cibicidoides spp. d18O data The d18O data set from OCE205-2-100GGC contains both newly acquired data (Came et al. 2007) and previously published data (Slowey and Curry 1995). Calendar ages are based on radiocarbon dates converted to calendar age using Calib 5.02 and a reservoir correction of 400 years. Depth Calendar Age d18O Mean d18O (cm) (yrsBP) (permil) (permil) 7 613 2.35 2.35 10 986 2.66 2.66 13 1,359 2.04 2.23 13 1,359 2.24 13 1,359 2.41 14 1,483 2.14 2.23 14 1,483 2.20 14 1,483 2.22 14 1,483 2.36 15 1,607 2.16 2.06 15 1,607 1.95 16 1,732 2.14 2.20 16 1,732 2.26 17 1,856 2.50 2.44 17 1,856 2.37 19 2,010 2.34 2.37 19 2,010 2.40 20 2,087 2.45 2.35 20 2,087 2.24 22 2,242 2.22 2.38 22 2,242 2.45 22 2,242 2.48 23 2,319 2.25 2.24 23 2,319 2.27 23 2,319 2.19 24 2,396 2.27 2.19 24 2,396 2.08 24 2,396 2.25 24 2,396 2.17 25 2,473 2.18 2.18 27 2,627 1.70 1.84 27 2,627 1.97 29 2,782 2.29 2.34 29 2,782 2.37 29 2,782 2.36 30 2,859 2.26 2.16 30 2,859 2.16 30 2,859 2.19 30 2,859 2.12 30 2,859 2.07 31 2,936 2.36 2.35 31 2,936 2.34 32 3,017 2.27 2.28 32 3,017 2.29 32 3,017 2.35 33 3,097 2.07 2.12 33 3,097 2.17 34 3,178 2.16 2.20 34 3,178 2.23 35 3,258 2.11 2.22 35 3,258 2.15 35 3,258 2.40 36 3,339 2.23 2.32 36 3,339 2.29 36 3,339 2.33 36 3,339 2.42 40 3,661 2.39 2.32 40 3,661 2.24 45 4,064 2.25 2.27 45 4,064 2.26 45 4,064 2.30 46 4,145 2.28 2.17 46 4,145 2.13 46 4,145 2.11 48 4,306 2.37 2.24 48 4,306 2.10 49 4,387 2.00 2.07 49 4,387 2.14 50 4,467 2.11 2.27 50 4,467 2.48 50 4,467 2.21 51 4,548 2.08 2.19 51 4,548 2.30 52 4,629 2.17 2.25 52 4,629 2.34 52 4,629 2.23 53 4,709 1.70 2.10 53 4,709 2.40 53 4,709 2.12 53 4,709 2.19 54 4,790 2.28 2.33 54 4,790 2.35 54 4,790 2.40 54 4,790 2.30 55 4,870 2.26 2.21 55 4,870 2.13 55 4,870 2.25 56 4,951 2.24 2.26 56 4,951 2.14 56 4,951 2.41 57 5,031 2.18 2.08 57 5,031 1.98 58 5,112 2.25 2.24 58 5,112 2.22 60 5,273 1.89 2.24 60 5,273 2.30 60 5,273 2.29 60 5,273 2.23 60 5,273 2.21 60 5,273 2.33 60 5,273 2.41 61 5,354 2.10 2.22 61 5,354 2.34 61 5,354 2.20 61 5,354 2.24 62 5,434 2.23 2.26 62 5,434 2.25 62 5,434 2.26 62 5,434 2.29 63 5,515 2.35 2.33 63 5,515 2.31 64 5,584 2.26 2.20 64 5,584 2.27 64 5,584 2.15 64 5,584 2.10 65 5,652 2.09 2.23 65 5,652 2.31 65 5,652 2.29 66 5,721 2.22 2.20 66 5,721 2.18 67 5,789 2.44 2.28 67 5,789 2.21 67 5,789 2.19 69 5,926 2.23 2.27 69 5,926 2.30 70 5,995 2.19 2.19 70 5,995 2.10 70 5,995 2.29 71 6,063 2.16 2.07 71 6,063 1.85 71 6,063 2.20 72 6,132 2.14 2.20 72 6,132 2.25 73 6,200 2.35 2.18 73 6,200 1.72 73 6,200 2.48 74 6,310 2.45 2.36 74 6,310 2.26 75 6,420 2.28 2.32 75 6,420 2.35 76 6,530 2.30 2.24 76 6,530 2.22 76 6,530 2.21 77 6,640 2.41 2.35 77 6,640 2.28 77 6,640 2.29 77 6,640 2.40 78 6,750 2.24 2.29 78 6,750 2.35 78 6,750 2.28 79 6,860 2.24 2.31 79 6,860 2.31 79 6,860 2.38 80 6,970 2.27 2.30 80 6,970 2.33 81 7,144 1.45 1.64 81 7,144 2.18 81 7,144 1.28 82 7,318 2.28 2.26 82 7,318 2.25 82 7,318 2.13 82 7,318 2.36 83 7,492 2.39 2.51 83 7,492 2.57 83 7,492 2.57 84 7,666 2.36 2.30 84 7,666 2.24 85 7,840 1.92 2.09 85 7,840 2.18 85 7,840 2.23 85 7,840 2.04 86 8,015 2.41 2.42 86 8,015 2.48 86 8,015 2.49 86 8,015 2.29 87 8,189 2.32 2.28 87 8,189 2.23 87 8,189 2.29 87 8,189 2.29 88 8,363 2.15 2.01 88 8,363 2.50 88 8,363 1.39 89 8,537 2.29 2.34 89 8,537 2.21 89 8,537 2.25 89 8,537 2.39 89 8,537 2.55 90 8,711 2.39 2.38 90 8,711 2.47 90 8,711 2.28 91 8,885 2.22 2.24 91 8,885 2.39 91 8,885 2.12 92 9,059 2.07 2.22 92 9,059 2.08 92 9,059 2.75 92 9,059 2.37 92 9,059 2.27 92 9,059 2.40 92 9,059 1.59 93 9,117 2.27 2.05 93 9,117 2.32 93 9,117 1.55 94 9,176 2.40 2.31 94 9,176 2.47 94 9,176 2.29 94 9,176 2.06 95 9,234 2.25 2.41 95 9,234 2.42 95 9,234 2.32 95 9,234 2.64 96 9,292 2.20 2.37 96 9,292 2.47 96 9,292 2.36 96 9,292 2.43 97 9,350 2.34 2.44 97 9,350 2.31 97 9,350 2.57 97 9,350 2.52 98 9,409 2.43 2.49 98 9,409 2.44 98 9,409 2.51 98 9,409 2.58 99 9,467 2.37 2.46 99 9,467 2.43 99 9,467 2.57 99 9,467 2.46 100 9,525 2.33 2.37 100 9,525 2.40 100 9,525 2.40 100 9,525 2.39 100 9,525 2.35 100 9,525 2.34 101 9,741 2.39 2.45 101 9,741 2.53 101 9,741 2.42 101 9,741 2.45 102 9,957 2.57 2.49 102 9,957 2.41 103 10,173 2.42 2.32 103 10,173 2.15 103 10,173 2.39 104 10,389 2.49 2.48 104 10,389 2.47 105 10,604 2.33 2.28 105 10,604 2.31 105 10,604 2.20 106 10,820 2.12 2.39 106 10,820 2.51 106 10,820 2.52 106 10,820 2.41 107 11,036 2.31 2.68 107 11,036 3.04 108 11,252 2.56 2.71 108 11,252 2.50 108 11,252 2.61 108 11,252 3.17 109 11,468 2.18 2.43 109 11,468 2.48 109 11,468 2.64 110 11,718 2.48 2.61 110 11,718 2.47 110 11,718 2.59 110 11,718 2.37 110 11,718 2.46 110 11,718 2.54 110 11,718 3.29 110 11,718 2.69 111 11,968 2.44 2.60 111 11,968 2.47 111 11,968 2.58 111 11,968 2.92 112 12,218 2.81 3.00 112 12,218 3.11 112 12,218 3.08 113 12,468 2.45 2.71 113 12,468 2.75 113 12,468 2.92 116 13,218 2.51 2.99 116 13,218 3.25 116 13,218 2.66 116 13,218 3.30 116 13,218 3.12 116 13,218 2.90 116 13,218 3.19 117 13,270 2.61 3.03 117 13,270 2.94 117 13,270 3.08 117 13,270 2.83 117 13,270 3.08 117 13,270 3.05 117 13,270 3.61 118 13,322 2.62 2.85 118 13,322 2.68 118 13,322 2.93 118 13,322 3.16 119 13,375 2.88 3.04 119 13,375 3.19 120 13,427 3.32 3.15 120 13,427 2.98 120 13,427 3.14 120 13,427 2.78 123 14,548 2.72 2.92 123 14,548 3.28 123 14,548 2.77 127 15,905 3.05 3.15 127 15,905 3.25 130 16,923 3.98 4.03 130 16,923 4.07 133 17,940 3.58 3.67 133 17,940 3.76 137 19,297 4.14 4.14 137 19,297 4.05 137 19,297 4.24 140 20,315 3.90 4.03 140 20,315 4.07 140 20,315 4.11 150 23,708 4.11 3.89 150 23,708 3.67 153 24,725 3.40 3.80 153 24,725 3.93 153 24,725 4.08 157 26,082 3.48 3.75 157 26,082 3.87 157 26,082 3.67 157 26,082 3.98 160 27,100 3.71 3.79 160 27,100 4.01 160 27,100 3.74 160 27,100 3.68 163 3.17 3.46 163 3.75 167 3.69 3.79 167 3.89 170 3.39 3.49 170 3.39 170 3.70 173 3.37 3.38 173 3.39 4. Came et al. 2007 OCE205-2-100GGC H. elegans Mg/Ca data. Calendar ages are based on radiocarbon dates converted to calendar age using Calib 5.02 and a reservoir correction of 400 years. Depth Calendar Age Mg/Ca Mean Mg/Ca (cm) (yrs BP) (mmol/mol) (mmol/mol) 8 737 1.15 1.15 13 1,359 1.11 1.07 13 1,359 1.03 16 1,732 1.09 1.09 18 1,933 1.13 1.13 19 2,010 1.09 1.09 21 2,165 1.16 1.16 22 2,242 1.16 1.16 24 2,396 1.13 1.13 25 2,473 1.09 1.09 26 2,550 1.06 1.06 27 2,627 1.08 1.07 27 2,627 1.07 28 2,705 1.11 1.11 29 2,782 1.20 1.20 29 2,782 1.20 30 2,859 1.18 1.18 32 3,017 1.10 1.10 33 3,097 1.10 1.10 35 3,258 1.08 1.08 36 3,339 1.14 1.14 37 3,420 1.14 1.14 38 3,500 1.12 1.12 39 3,581 1.13 1.13 40 3,661 1.12 1.12 42 3,823 1.08 1.08 43 3,903 1.14 1.14 44 3,984 1.07 1.07 45 4,064 1.07 1.07 46 4,145 1.09 1.09 47 4,226 1.15 1.15 48 4,306 1.11 1.11 49 4,387 1.08 1.08 51 4,548 1.07 1.07 52 4,629 1.10 1.10 53 4,709 1.14 1.14 54 4,790 1.14 1.14 55 4,870 1.10 1.10 56 4,951 1.10 1.09 56 4,951 1.09 57 5,031 1.15 1.15 58 5,112 1.05 1.04 58 5,112 1.03 59 5,193 1.23 1.23 60 5,273 1.12 1.12 61 5,354 0.97 0.97 62 5,434 1.10 1.10 63 5,515 1.13 1.13 64 5,584 1.11 1.11 66 5,721 1.20 1.20 67 5,789 1.11 1.11 68 5,858 1.21 1.16 68 5,858 1.10 70 5,995 1.13 1.13 71 6,063 1.16 1.16 72 6,132 1.15 1.15 73 6,200 1.10 1.10 74 6,310 1.11 1.11 75 6,420 1.07 1.07 76 6,530 1.12 1.13 76 6,530 1.14 77 6,640 1.17 1.13 77 6,640 1.09 78 6,750 1.12 1.12 79 6,860 1.06 1.06 80 6,970 1.14 1.14 81 7,144 1.13 1.13 82 7,318 1.11 1.11 83 7,492 1.11 1.11 85 7,840 1.12 1.12 86 8,015 1.12 1.12 87 8,189 1.05 1.05 88 8,363 1.14 1.14 89 8,537 1.16 1.16 90 8,711 1.15 1.15 91 8,885 1.25 1.19 91 8,885 1.13 92 9,059 1.18 1.18 93 9,117 1.13 1.13 95 9,234 1.16 1.16 96 9,292 1.19 1.19 98 9,409 1.17 1.17 99 9,467 1.18 1.18 100 9,525 1.22 1.22 101 9,741 1.14 1.14 102 9,957 1.17 1.17 103 10,173 1.21 1.21 104 10,389 1.24 1.24 105 10,604 1.15 1.16 105 10,604 1.17 106 10,820 1.11 1.11 108 11,252 1.13 1.13 109 11,468 1.15 1.15 110 11,718 1.09 1.15 110 11,718 1.23 110 11,718 1.14 112 12,218 1.15 1.15 113 12,468 1.11 1.11 117 13,270 1.11 1.11 120 13,427 1.19 1.19 123 14,452 1.22 1.22 124 14,794 1.10 1.10 126 15,478 1.16 1.16 128 16,162 1.23 1.23 132 17,529 1.12 1.12 136 18,896 1.19 1.19 138 19,580 1.16 1.16 142 20,947 1.09 1.09 148 22,998 1.11 1.11 152 24,365 1.13 1.13 156 25,733 1.16 1.16 158 26,416 1.15 1.15 162 27,784 1.13 1.13