# NOAA Paleoclimatology Program - Paleocean Site Data # vm28-122-fwc.txt # Complete Data # File Created: 18-Jul-2011 # #********************************************************************************* # Please cite the contributor and the original publications when using these data #********************************************************************************* # # Missing Values indicated by '-999' # # PI: Matthew W. Schmidt # Core/Site: VM28-122 # Latitude: 11.34.00N ( 11.56667) # Longitude: 78.25.00W ( -78.41667) # Water Depth(m): 3623 # # Publications: # Schmidt, M.W., H.J. Spero, and D.W. Lea. 2004. Links between salinity variation # in the Caribbean and North Atlantic thermohaline circulation. # Nature 428:160-163. #------------------ # # Description & Notes: # Caribbean Foraminiferal Mg/Ca, d18OCalcite, and Paleosalinity # Authors combine Mg/Ca paleothermometry with d18Ocalcite measurements on the planktic # foraminifera Globigerinoides ruber from two Caribbean cores and reconstruct d18Oseawater # variation (a proxy for salinity) during the last glacial cycle. We demonstrate # that Caribbean surface d18OSW oscillated between more positive values (saltier) # conditions during cold oxygen isotope stages (OIS) 2, 4, and 6 and modern values # during warm OIS 3 and 5. # # VM28-122 C14 Dates # # yrBP radiocarbon years B.P. (Libby half-life; B.P. = 1950) # # Depth yrBP Error+ Error- Material Thickness Cal Age # 2 3040 130 130 G. ruber white 2 2780 # 24.5 6170 190 190 G. ruber white 1 6617 # 48.5 9390 160 160 G. ruber white 1 10116 # 58.5 9930 45 45 G. ruber white 1 10798 # 74.5 12120 35 35 G. ruber white 1 13729 # 101 13240 240 240 G. ruber white 6 15383 # 123.5 15540 270 270 G. ruber white 1 17990 # 134 18730 480 480 G. ruber white 10 21657 # # Variables: # depth Depth (cm) # calyrBP calendar years B.P. (B.P. = 1950) # d18Ocarb delta O18 PDB Calcium Carbonate # d18Owater delta O18 PDB (water) # Mg/Ca-g.rub-w Magnesium/Calcium ratio (Globigerinoides ruber, white) (mmol/mol) # sst-mg/ca Sea surface temperature from Mg/Ca (C) # # CORE: VM28-122 depth calyrBP d18Ocarb d18Owater Mg/Ca-g.rub-w sst-mg/ca 4 3130 -1.97 0.66 3.833 27.9 6 3480 -1.91 -999 -999 -999 8 3830 -1.88 -999 -999 -999 10 4180 -1.73 0.79 3.65 27.3 14 4870 -1.86 -999 -999 -999 16 5220 -1.77 -999 -999 -999 18 5570 -1.8 -999 -999 -999 20 5920 -1.89 0.69 3.751 27.6 22 6270 -1.63 -999 -999 -999 24 6620 -1.83 -999 -999 -999 26 6910 -1.96 0.66 3.817 27.8 28 7200 -1.95 0.61 3.724 27.6 30 7490 -1.8 -999 -999 -999 32 7780 -1.6 0.9 3.627 27.3 34 8070 -1.71 -999 -999 -999 36 8370 -1.59 -999 -999 -999 38 8660 -1.63 -999 -999 -999 40 8950 -1.54 -999 -999 -999 42 9240 -1.47 -999 -999 -999 44 9530 -1.47 1.15 3.814 27.8 46 9820 -1.5 1.12 3.819 27.8 48 10120 -1.58 1.03 3.804 27.8 50 10250 -1.57 -999 -999 -999 52 10390 -1.57 0.94 3.65 27.3 54 10530 -1.51 1.05 3.727 27.6 56 10660 -1.32 1.29 3.81 27.8 58 10800 -1.4 1.31 3.98 28.3 60 11160 -1.36 1.36 3.993 28.3 62 11530 -1.14 1.46 3.787 27.7 64 11900 -1.27 1.38 3.88 28 66 12260 -0.88 1.74 3.817 27.8 68 12630 -0.77 1.74 3.642 27.3 70 13000 -0.75 1.65 3.481 26.8 72 13360 -0.84 1.76 3.782 27.7 74 13730 -0.98 1.58 3.709 27.5 76 13860 -0.75 1.78 3.676 27.4 78 13980 -0.82 1.6 3.512 26.9 80 14110 -0.76 1.81 3.742 27.6 82 14240 -0.76 1.76 3.66 27.4 84 14360 -0.83 1.76 3.772 27.7 86 14490 -0.73 1.8 3.676 27.4 88 14620 -0.54 2.04 3.768 27.7 90 14750 -0.68 1.97 3.863 28 92 14870 -0.47 2.08 3.712 27.5 94 15000 -0.55 2.03 3.753 27.6 96 15130 -0.39 2.18 3.739 27.6 100 15380 -0.35 2.22 3.74 27.6 102 15620 -0.19 2.37 3.715 27.5 104 15850 -0.29 2.11 3.472 26.8 106 16090 -0.31 2.02 3.373 26.5 108 16330 -0.11 2.22 3.376 26.5 110 16570 -0.18 2.11 3.314 26.3 112 16800 -0.15 2.09 3.233 26 114 17040 -0.2 -999 -999 -999 116 17280 -0.24 -999 -999 -999 118 17520 -0.09 2.29 3.43 26.6 120 17750 -0.12 2.18 3.323 26.3 122 17990 -0.2 -999 -999 -999 124 18600 -0.1 2.14 3.246 26 126 19210 -0.09 2.12 3.2 25.9 128 19820 0 2.49 3.61 27.2 130 20430 -0.09 2.32 3.487 26.8 132 21050 -0.19 1.99 3.148 25.7 134 21660 -0.18 2.06 3.237 26 136 22400 -0.11 2.2 3.334 26.3 138 23140 -0.26 2.04 3.324 26.3 140 23880 -0.3 -999 -999 -999 142 24620 -0.17 -999 -999 -999 147 25360 -0.32 2.02 3.383 26.5 152 25660 -0.33 -999 -999 -999 157 25880 -0.28 2.03 3.337 26.3 162 26700 -0.29 2.14 3.52 26.9 167 27520 -0.4 2.08 3.584 27.1 172 28340 -0.33 -999 -999 -999 177 29150 -0.32 2.13 3.548 27 182 29970 -0.39 2.02 3.494 26.8 187 30790 -0.55 1.79 3.388 26.5 192 31610 -0.47 1.88 3.41 26.6 197 32430 -0.31 1.92 3.227 26 202 33250 -0.36 2.11 3.589 27.1 207 34060 -0.34 2.13 3.587 27.1 212 34880 -0.41 2.06 3.576 27.1 217 35700 -0.7 1.56 3.265 26.1 222 36520 -0.45 1.81 3.264 26.1 227 37020 -0.5 1.73 3.224 26 232 37530 -0.65 1.5 3.112 25.6 237 38030 -0.26 2.04 3.329 26.3 242 38530 -0.75 1.58 3.372 26.5 247 39030 -0.38 1.98 3.417 26.6 252 39540 -0.56 1.73 3.313 26.3 257 40040 -0.49 1.84 3.372 26.5 262 40540 -0.58 1.84 3.504 26.9 267 41040 -0.41 2.01 3.501 26.9