Jenkyns, Gröcke, and Hesselbo, Paleoceanography 16, pp. 593-603 Lower Jurassic Stable Isotope and Chemical Data "Toarcian, Hawsker Bottoms, Yorkshire (Cleveland Basin)" Sample ID Height (m) d13Corg d13Ccarb d15Ntotal wt%TOC pm16 7.5 3.65 pm13 7.3 5.55 pm18 7.2 5.63 43 6.9 -27.36 -2.12 5.17 42 6.8 -27.07 -3.57 4.76 41 6.7 -27.3 -3.31 4.27 40 6.6 -27.52 -2.73 5.01 pm2c 6.55 6.36 39 6.5 -27.35 -1.77 4.73 38 6.4 -26.52 -1.37 5.94 r2c 6.4 37 6.3 -26.81 -0.58 6.34 36 6.2 -26.99 -1.21 5.66 35 6.1 -27.5 -0.64 3.98 34 6 -26.69 -0.89 5.78 33 5.9 -26.85 -1.01 4.9 32 5.8 -27.36 -1.9 5.32 31 5.7 -27.28 -2.75 5.82 pm8 5.7 4.08 30 5.6 -27.38 -2.03 5.38 29 5.5 -27.3 -1 5.42 28 5.4 -28.4 -0.6 6.83 s1a 5.4 3.63 27 5.3 -28.48 -1.45 4.83 26 5.2 -27.74 -1.78 5.7 25 5.1 -28.51 -1.18 4.67 24 5 -28.75 -0.61 5.25 23 4.9 -28.76 -1.54 5.15 r4b 4.9 5.29 22 4.8 -29.41 -2.12 5.18 21 4.7 -29.05 -1.57 5.38 pm104 4.7 3.29 20 4.6 -29.37 -2.02 5.73 19 4.5 -29.33 -1.43 4.8 18 4.4 -28.79 -1.09 4.72 17 4.3 -28.58 -0.65 4.29 16 4.2 -28.73 -1.47 4.54 15 4.1 -28.65 -2.2 4.21 14 4 -28.56 -1.51 5.33 13 3.9 -28.8 -2.24 5.19 12 3.8 -29.11 -1.89 4.66 11 3.7 -28.52 -1.4 5.29 10 3.6 -29.01 -2.63 3.82 pm3 3.6 2.36 9 3.5 -29.2 -1.31 3.75 8 3.4 -30.06 -1.03 6.1 7 3.3 -30.13 0.32 11.33 6 3.2 -30.96 1.37 10.73 5 3.1 -30.27 1.22 10 4 3 -30.66 1.99 14.27 3 2.9 -30.53 0.52 8.76 2 2.8 -30.43 0.86 9.71 1 2.7 -31.15 1.36 12.22 44 2.6 -31.86 1.75 7.76 45 2.5 -32.2 1.67 8.14 pm105 2.45 1.82 46 2.4 -31.4 1.02 6.1 47 2.3 -31.34 0.61 7.86 pm111 2.25 2 48 2.2 -30.87 0.96 8.95 49 2.1 -31.38 0.71 8.22 50 2 -32.19 0.06 8.54 51 1.9 -31.48 -0.45 8.8 52 1.8 -31.15 -0.85 8.92 pm109 1.8 3.09 53 1.7 -31.57 -0.5 8.63 54 1.6 -30.67 -0.3 8.91 55 1.5 -30.93 0.33 9.4 56 1.4 -31.36 -0.7 8.49 57 1.3 -30.97 -1.36 8.67 58 1.2 -31.01 -2.1 6.56 59 1.1 -31.08 -0.04 6.06 60 1 -30.83 -0.08 5.44 61 0.9 -29.99 -0.7 6.22 62 0.8 -30.08 -2.49 5.91 63 0.7 -30.07 -1.62 6.88 64 0.6 -29.98 -0.93 6.87 65 0.5 -30.41 -1.65 6.66 66 0.4 -30.82 -1.36 6.76 67 0.3 -30 -0.66 5.59 68 0.2 -30.91 -1.39 5.13 pm107 0.15 2 69 0.1 -30.97 -1.59 3.9 70 0 -30.72 -1.38 4.82 71 -0.1 -30.35 -1.04 3.36 72 -0.2 -30.57 -0.85 4.36 73 -0.3 -29.26 -1.39 5.54 pm106 -0.45 1.68 133 -0.6 -30.25 1.57 5.32 pm113 -0.65 2.91 132 -0.9 -27.2 0.28 5.82 pm112a -0.8 3.52 131 -1 -27.34 0.15 3.44 pm108 -1 1.92 130 -1.2 -28.11 1.54 4.46 129 -1.4 -27.95 -1.59 2.91 k117 -1.68 2.55 128 -1.7 -26.86 -0.83 3.32 127 -2 -26.76 -1.02 4.42 k118a -2.08 3.18 126 -2.3 -27.23 -1.48 3.25 125 -2.5 -27.41 -0.33 3.92 124 -2.7 -26.6 -1.7 2.2 123 -3 -26.63 -0.58 3.43 pm101 -2.9 2.29 122 -3.1 -26.07 -2.51 2.65 k121 -3.18 2.2 121 -3.4 -25.86 -2.41 1.99 120 -3.6 -25.62 -1.13 1.87 119 -3.8 -26.1 2.13 118 -4 -25.87 -2.36 1.68 pm102 -4.06 2.41 117 -4.3 -26.21 1.34 138 -4.5 -25.81 1.93 k112b -4.54 3.88 139 -4.7 -26.04 -2.28 1.92 140 -4.9 -26.03 1.69 141 -5.1 -26.03 1.5 142 -5.3 -26.48 1.66