Central Pacific ODP1215 Cenozoic Elemental Concentration Data ----------------------------------------------------------------------- World Data Center for Paleoclimatology, Boulder and NOAA Paleoclimatology Program ----------------------------------------------------------------------- NOTE: PLEASE CITE CONTRIBUTORS WHEN USING THIS DATA!!!!! NAME OF DATA SET: Central Pacific ODP1215 Cenozoic Elemental Concentration Data LAST UPDATE: 4/2007 (Original receipt by WDC Paleo) CONTRIBUTOR: Rick Murray, Boston University IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2007-043 SUGGESTED DATA CITATION: Ziegler, C. L., and R. W. Murray. 2007. Central Pacific ODP1215 Cenozoic Elemental Concentration Data. IGBP PAGES/World Data Center for Paleoclimatology Data Contribution Series # 2007-043. NOAA/NCDC Paleoclimatology Program, Boulder CO, USA. ORIGINAL REFERENCE: Ziegler, C. L., and R. W. Murray. 2007. Geochemical evolution of the central Pacific Ocean over the past 56 Myr. Paleoceanography, 22, PA2203, doi:10.1029/2006PA001321. ABSTRACT: We measured the elemental concentrations of 69 sediment samples collected at Ocean Drilling Program Site 1215 and employed a suite of statistical methods and elemental ratios to quantify the lithogenic, biogenic, and authigenic/hydrogenous/hydrothermal (AHH) components. We show that the changes in their abundance record (1) northwestward migration of the Pacific Plate, (2) changes in climatic and oceanographic processes associated with the transition from the Eocene "greenhouse" into the Oligocene "icehouse", and (3) changes in Pacific spreading rates and plate reorganization. The distributions of three separate lithogenic end-members depend on the latitudinal positioning of the site underneath the different wind belts. Locations north of 22N received material from Asia, which was transported to the central Pacific via the westerlies. Locations between 20 and 22N display a silicic volcanic composition and may reflect the boundary between westerlies and northeast trade winds. Locations south of 20N are geochemically (e.g., Cr/Ta, Sc/Th, etc.) distinct from locations north of 22N and suggest a North American origin. Rb/Sc significantly increases from values of 2.8 g g-1 at ~20–22 Ma to 5.7 g g-1 in the modern, recording the development of the east Asian monsoon and formation of Asian loess. During the early to mid-Eocene (53–54 Ma), when Site 1215 was located at ~11–13N and was above the carbonate compensation depth, export production increased by 40–55% and was ~25% greater than the modern value at 9N. The AHH component dominated from late Eocene to the late Miocene and during the late Eocene may have been driven by elevated hydrothermal activity during increased seafloor spreading. GEOGRAPHIC REGION: Central Pacific PERIOD OF RECORD: 56 MMYrBP - present FUNDING SOURCES: Joint Oceanographic Institutions/USSAC to R. W. Murray DESCRIPTION: Elemental concentration data for 69 samples from Ocean Drilling Program Leg 199, Hole 1215A, located on an abyssal hill in the central Pacific Ocean (26.0N, 147.5W, 5396m water depth). DATA: 1. Auxiliary Data Table. Bulk sediment composition. Sample Name Depth Age Paleolat Dist.Ridge DBD LSR BAR Si Al Ti Fe Mn Ca Mg Na K P Ba Sr Cr Ni Sc V Zn Zr Li Rb Nb Cs Y La Ce Pr Nd Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Hf Ta Th U Si/Al Al/Ti Fe/Ti P/Ti Ba/Ti Fe/Mn Fe/Si Rb/Sc Cr/Ta Zr/Hf La/Ce Ce/Ce* Site 1215A: 1H-1 20-25 cm 0.20 0.35 25.92 3749 0.743 0.057 42 24.50 9.23 0.568 5.36 0.369 0.53 2.09 2.13 2.94 0.060 1007 151 100.4 129 20.12 150.5 181 166.7 55.72 112.6 16.97 12.64 33.7 36.1 88.2 9.6 34.7 7.1 1.44 6.01 1.06 6.26 1.30 3.49 0.50 3.55 0.52 4.66 1.27 19.25 2.65 2.66 16.2 9 0.11 0.18 14.52 0.22 5.60 79.19 35.8 0.41 1.09 1H-1 30-35 cm 0.30 0.53 25.84 3734 0.741 0.057 42 25.18 9.24 0.571 5.44 0.376 0.50 2.08 2.19 2.90 0.059 943 150 98.2 143 20.54 148.5 185 177.9 60.04 118.8 16.86 13.02 37.6 35.2 89.1 10.0 36.5 7.7 1.59 6.75 1.20 7.12 1.49 3.98 0.58 4.07 0.59 5.05 1.26 19.66 2.66 2.72 16.2 10 0.10 0.16 14.48 0.22 5.78 78.09 35.2 0.39 1.09 2H-1 30-35 cm 1.50 4.11 24.39 3427 0.709 0.057 40 23.83 9.13 0.600 5.52 0.376 0.48 2.09 2.39 3.02 0.058 1114 144 98.4 133 20.51 152.3 191 179.5 53.10 134.7 16.78 12.37 45.4 43.8 99.4 11.8 43.3 8.9 1.68 7.81 1.38 8.10 1.70 4.47 0.64 4.45 0.64 5.50 1.25 18.81 2.61 2.61 15.2 9 0.10 0.19 14.68 0.23 6.57 78.59 32.7 0.44 1.00 2H-2 30-32 cm 3.00 6.75 23.39 3207 0.669 0.057 38 23.45 8.74 0.615 5.74 0.704 0.66 2.04 2.41 2.84 0.124 760 160 90.2 275 21.75 154.6 187 193.6 56.57 148.5 17.09 12.09 70.0 47.9 94.7 15.2 59.1 13.6 3.17 12.80 2.26 13.55 2.80 7.26 1.01 6.98 1.00 5.73 1.26 19.00 2.55 2.68 14.2 9 0.20 0.12 8.15 0.24 6.83 71.39 33.8 0.51 0.80 2H-3 30-35 cm 4.50 9.38 * 22.71 3003 0.629 0.057 36 23.48 8.77 0.554 5.35 0.821 0.88 1.99 2.61 2.92 0.201 671 192 76.9 258 25.08 129.9 190 213.2 48.37 137.5 16.28 12.17 85.3 90.2 131.6 29.2 116.5 27.1 6.46 26.90 4.68 27.97 5.91 15.43 2.09 14.29 2.10 6.43 1.19 20.63 2.76 2.68 15.8 10 0.36 0.12 6.51 0.23 5.48 64.63 33.2 0.69 0.58 2H-4 30-35 cm 6.00 12.02 22.03 2799 0.588 0.057 33 23.01 8.60 0.510 4.96 1.269 1.46 1.82 2.84 2.92 0.343 653 239 71.0 339 25.77 118.1 184 211.1 53.20 131.8 15.32 9.84 129.8 102.2 137.5 31.5 126.8 28.7 6.84 29.38 5.05 30.57 6.45 17.20 2.33 15.71 2.31 6.25 1.12 22.01 3.21 2.68 16.9 10 0.67 0.13 3.91 0.22 5.12 63.49 33.8 0.74 0.55 2H-4 73-74 cm 6.43 12.77 21.84 2740 0.577 0.057 33 21.12 7.87 0.467 4.88 1.625 1.73 1.70 2.91 2.83 0.386 466 267 49.1 353 26.98 120.1 165 215.1 48.52 121.1 14.39 9.63 142.3 112.0 144.2 29.8 134.0 29.4 7.08 31.26 5.34 29.47 6.69 17.48 2.33 16.73 2.37 6.14 1.01 23.39 2.93 2.68 16.8 10 0.83 0.10 3.00 0.23 4.49 48.57 35.0 0.78 0.57 2H-5 30-32 cm 7.50 14.65 21.35 2594 0.548 0.057 31 23.04 8.53 0.358 4.25 1.716 1.55 1.20 3.72 3.44 0.388 494 247 28.9 317 18.81 103.7 146 214.3 29.76 96.8 11.04 4.65 135.9 89.4 67.6 27.0 108.7 24.4 5.49 23.94 4.12 24.41 5.27 13.89 1.90 12.67 1.91 6.36 0.74 24.86 1.99 2.70 23.8 12 1.08 0.14 2.48 0.18 5.15 38.88 33.7 1.32 0.31 2H-5 74-75 cm 7.93 15.41 21.16 2536 0.537 0.057 31 21.00 7.76 0.293 4.59 1.963 1.61 1.27 3.81 3.55 0.391 452 260 26.4 390 19.09 104.8 137 220.6 30.89 90.8 9.83 4.45 105.6 82.7 183.7 26.8 163.1 35.6 7.87 34.49 6.10 33.44 7.58 19.91 2.59 16.92 2.62 6.30 0.67 24.89 1.97 2.71 26.4 16 1.33 0.15 2.34 0.22 4.76 39.73 35.0 0.45 0.88 2H-5 108-109 cm 8.28 16.02 21.00 2488 0.528 0.057 30 20.12 7.40 0.275 3.29 1.342 0.84 0.84 4.59 4.08 0.386 445 223 28.1 293 18.77 105.9 130 201.1 31.09 77.1 8.48 4.50 146.0 85.2 124.1 25.1 104.5 24.2 5.48 23.88 4.02 23.38 4.94 13.61 1.80 12.02 1.79 6.44 0.59 25.34 1.90 2.72 26.9 12 1.40 0.16 2.45 0.16 4.11 47.32 31.2 0.69 0.61 2H-6 30-35 cm 9.00 17.29 20.67 2390 0.508 0.057 29 21.17 7.72 0.286 4.21 1.661 1.88 1.21 3.85 3.27 0.419 411 220 25.9 372 22.21 102.0 140 204.3 32.81 82.4 8.32 4.50 153.9 85.3 72.2 33.5 140.8 30.2 7.17 31.97 5.47 31.42 6.62 16.38 2.19 14.58 2.05 6.37 0.58 24.82 1.99 2.74 27.0 15 1.47 0.14 2.53 0.20 3.71 44.95 32.1 1.18 0.30 2H-6 74-75 cm 9.44 18.06 20.47 2330 0.497 0.057 28 21.42 7.65 0.285 5.03 1.832 1.86 1.51 3.88 3.16 0.551 399 249 26.9 439 26.83 129.1 157 205.2 36.64 81.2 8.48 4.50 186.0 85.2 124.1 25.1 109.5 24.2 5.68 23.18 3.92 23.38 4.94 13.61 1.89 12.02 1.79 6.54 0.59 16.34 1.90 2.80 26.8 18 1.93 0.14 2.75 0.24 3.03 45.68 31.4 0.69 0.61 2H-7 32-37 cm 10.52 19.96 * 19.99 2183 0.468 0.057 27 20.61 7.27 0.285 5.55 2.052 1.80 1.51 3.84 2.69 0.518 426 254 24.0 481 26.64 154.0 199 198.9 32.77 73.2 8.14 3.81 157.8 103.9 134.1 30.1 125.5 27.2 6.18 28.18 4.82 28.38 5.94 15.61 2.09 13.52 1.99 6.33 0.56 15.51 2.02 2.83 25.5 19 1.82 0.15 2.71 0.27 2.75 42.94 31.4 0.77 0.55 3H-1 30-35 cm 11.00 23.33 19.12 1921 0.455 0.057 26 20.22 6.61 0.260 7.37 2.280 1.64 1.63 3.97 2.41 0.465 438 238 17.1 412 21.05 180.5 215 203.3 36.99 59.5 7.57 2.67 140.3 106.2 140.4 33.0 133.4 28.7 6.60 28.85 4.94 28.92 6.15 16.03 2.19 14.04 2.10 5.67 0.50 14.30 1.81 3.06 25.4 28 1.79 0.17 3.23 0.36 2.83 34.55 35.9 0.76 0.54 3H-1 74-75 cm 11.44 24.11 18.92 1861 0.443 0.057 25 19.05 5.66 0.227 8.96 2.833 1.92 1.75 3.69 2.26 0.587 469 288 15.5 473 20.62 177.0 244 189.1 27.30 44.8 6.45 2.77 254.9 141.0 60.4 44.7 205.5 48.0 10.27 44.22 7.20 42.79 8.82 22.59 2.95 19.04 2.94 5.21 0.43 12.04 1.54 3.37 25.0 40 2.59 0.21 3.16 0.47 2.17 36.21 36.3 2.33 0.17 3H-2 32-34 cm 12.52 26.00 18.43 1714 0.359 0.057 20 18.08 5.02 0.204 9.33 2.967 2.00 1.76 3.31 1.92 0.604 464 290 19.7 446 21.09 180.1 267 151.2 NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM 3.60 24.6 46 2.96 0.23 3.14 0.52 NC NC NC NC NC 3H-3 30-35 cm 14.00 28.60 17.76 1513 0.359 0.057 20 18.02 5.23 0.217 11.14 3.434 2.11 1.90 3.13 2.00 0.583 501 285 22.4 253 19.16 260.8 279 164.4 25.77 44.1 4.91 2.68 216.7 147.9 96.7 35.5 143.7 31.2 7.35 31.55 5.29 31.85 6.80 17.42 2.39 15.35 2.15 4.79 0.36 8.74 2.32 3.44 24.1 51 2.68 0.23 3.24 0.62 2.30 62.59 34.3 1.53 0.31 3H-3 74-75 cm 14.44 29.38 17.64 1456 0.359 0.057 20 14.14 4.39 0.180 10.65 3.489 1.37 1.81 3.05 1.66 0.521 515 239 17.8 219 18.74 264.8 306 166.7 26.31 36.0 4.09 2.71 221.3 144.4 136.5 34.8 162.9 35.9 8.45 37.38 6.19 34.30 7.59 19.89 2.63 17.00 2.42 3.92 0.30 6.96 2.24 3.22 24.4 59 2.90 0.29 3.05 0.75 1.92 60.11 42.5 1.06 0.44 3H-4 30-35 cm 15.50 31.24 17.27 1330 0.359 0.057 20 13.84 4.13 0.165 13.40 3.674 1.94 1.77 3.15 1.55 0.577 670 363 15.9 318 18.69 366.8 431 165.1 21.30 32.7 3.84 2.05 193.5 135.1 118.4 44.9 179.7 39.5 9.23 38.34 6.49 37.38 7.86 19.57 2.57 16.71 2.37 3.68 0.28 6.28 2.21 3.35 25.1 81 3.50 0.41 3.65 0.97 1.75 57.61 44.8 1.14 0.34 3H-5 32-34 cm 17.02 33.91 16.74 1148 0.359 0.057 20 12.34 3.15 0.127 14.42 3.740 1.48 1.81 3.12 1.43 0.472 671 357 12.1 367 16.30 333.1 426 171.3 21.1 23.1 2.39 2.2 138.5 127.8 110.8 39.2 169.8 36.4 9.06 37.82 6.28 35.83 7.51 18.91 2.36 15.10 2.06 2.53 0.18 4.86 1.99 3.92 24.7 113 3.71 0.53 3.86 1.17 1.42 68.93 67.6 1.15 0.36 3H-6 30-35 cm 18.50 36.51 16.22 972 0.271 0.057 15 10.08 2.61 0.100 14.44 3.720 1.42 2.13 2.90 1.23 0.383 681 345 9.9 230 15.68 294.9 363 133.3 24.85 22.8 1.79 1.30 119.6 114.9 106.0 38.7 155.6 34.8 8.31 32.46 5.58 31.85 6.39 15.95 2.15 14.04 1.90 1.93 0.13 3.83 2.08 3.87 26.0 144 3.81 0.68 3.88 1.43 1.45 74.46 69.2 1.08 0.36 3H-7 30-35 cm 20.00 39.15 15.70 793 0.271 0.057 15 8.80 2.53 0.092 15.56 3.727 1.35 2.20 2.78 1.19 0.391 617 348 6.1 204 13.70 298.4 293 128.8 13.51 21.4 1.59 1.19 118.7 107.7 95.9 35.8 142.5 32.2 7.77 30.14 5.17 29.50 5.93 14.91 2.00 12.77 1.75 1.78 0.11 3.59 2.15 3.48 27.6 170 4.26 0.67 4.18 1.77 1.56 53.98 72.5 1.12 0.35 3H-7 36-37 cm 20.06 39.25 15.68 786 0.271 0.057 15 8.25 1.60 0.084 15.01 3.822 0.79 2.17 2.75 0.97 0.241 629 320 6.6 189 12.94 290.5 291 132.2 14.24 19.6 1.42 0.91 116.1 102.9 64.3 22.5 102.8 23.7 5.30 22.31 3.69 19.42 4.16 11.57 1.57 9.84 1.52 1.61 0.10 3.24 2.20 5.15 19.0 178 2.85 0.75 3.93 1.82 1.51 64.02 82.4 1.60 0.31 4H-1 30-35 cm 20.50 43.68 14.81 474 0.271 0.057 15 12.06 1.99 0.084 14.85 3.925 1.27 2.09 2.89 0.96 0.347 715 360 5.9 227 12.45 347.0 350 154.1 16.22 20.4 1.43 1.06 108.5 126.6 89.4 42.3 168.3 37.8 8.75 35.88 6.15 35.30 7.07 17.53 2.36 16.13 2.17 1.59 0.10 3.33 2.47 6.08 23.7 178 4.15 0.86 3.78 1.23 1.64 57.55 97.1 1.42 0.28 4H-2 30-34 cm 22.00 46.32 * 14.13 386 0.271 0.057 15 10.13 1.85 0.087 15.11 4.395 1.51 1.92 3.34 1.07 0.416 681 392 6.0 286 12.95 387.8 356 149.1 NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM 5.49 21.2 174 4.78 0.78 3.44 1.49 NC NC NC NC NC 4H-2 74-75 cm 22.44 47.09 13.92 361 0.271 0.057 15 11.63 2.05 0.090 15.65 5.253 1.63 1.96 3.42 1.18 0.437 775 456 6.2 326 12.57 393.4 352 133.9 11.8 22.9 1.43 1.0 184.5 152.9 72.9 36.0 171.6 39.1 8.53 35.12 5.74 30.33 6.64 16.53 2.48 15.43 2.37 1.45 0.10 2.69 3.21 5.66 22.8 174 4.86 0.86 2.98 1.35 1.82 60.33 92.1 2.10 0.23 4H-3 30-35 cm 23.50 48.95 13.41 299 0.271 0.057 15 14.12 2.36 0.090 15.82 4.738 1.74 2.19 4.09 1.33 0.477 703 418 6.2 315 12.34 426.0 346 123.2 7.12 18.2 1.42 0.95 177.9 125.1 87.5 53.7 212.8 46.8 10.95 43.99 7.66 43.51 9.03 22.76 2.90 18.76 2.63 1.40 0.10 2.74 3.14 5.98 26.3 176 5.32 0.78 3.34 1.12 1.47 60.00 88.2 1.43 0.23 4H-4 30-35 cm 25.00 50.90 12.88 235 0.196 0.368 72 11.70 1.94 0.064 9.89 3.026 1.38 2.26 4.23 1.29 0.326 456 289 4.5 169 9.50 201.9 316 60.5 NM NM 1.79 0.54 95.2 43.6 16.8 10.2 45.9 10.5 2.46 10.72 1.63 8.97 1.94 4.72 0.64 4.13 0.65 1.43 0.11 0.76 0.89 6.03 30.2 154 5.08 0.71 3.27 0.85 NC 42.49 42.2 2.60 0.18 4H-4 45-47 cm 25.15 50.94 12.86 233 0.196 0.368 72 7.95 0.88 0.034 4.93 2.165 10.18 2.67 4.32 1.05 0.148 282 292 2.3 93 5.31 64.4 167 35.1 35.1 14.7 1.02 0.16 62.8 59.7 26.5 13.9 58.7 14.7 3.37 14.09 2.14 11.79 2.50 6.20 0.79 5.23 0.81 0.89 0.07 0.49 0.57 9.01 26.1 146 4.39 0.84 2.28 0.62 2.77 34.52 39.7 2.25 0.21 4H-4 74-75 cm 25.44 51.02 12.84 231 0.196 0.368 72 10.97 1.01 0.044 8.05 2.442 1.26 3.34 3.87 1.09 0.191 357 232 3.1 150 7.34 85.1 215 52.4 39.4 17.7 1.21 0.46 78.1 60.8 29.4 13.9 62.8 14.4 3.27 13.41 2.21 11.89 2.67 6.80 1.04 6.45 0.97 1.09 0.08 0.52 0.60 10.85 22.8 182 4.31 0.81 3.30 0.73 2.41 38.21 48.2 2.07 0.23 4H-5 30-34 cm 26.50 51.31 12.76 221 0.286 0.368 105 9.84 0.89 0.036 4.75 1.899 19.61 1.57 3.10 0.57 0.142 196 477 1.7 142 4.91 40.5 198 37.4 NM NM 0.92 0.12 32.8 29.4 12.1 7.1 30.7 6.6 1.51 6.73 1.04 5.91 1.27 2.98 0.40 2.65 0.41 0.78 0.06 0.51 0.60 11.04 25.0 133 3.98 0.55 2.50 0.48 NC 28.83 47.7 2.44 0.19 4H-5 45-47 cm 26.65 51.35 12.75 220 0.299 0.368 110 9.39 0.86 0.031 3.75 1.397 22.89 1.27 2.97 0.51 0.148 191 642 1.3 100 4.10 37.4 180 17.7 24.4 11.2 0.81 0.31 50.8 47.4 21.8 11.5 50.4 11.1 2.50 11.18 1.77 9.93 2.05 4.93 0.65 4.22 0.66 0.49 0.05 0.49 0.54 10.95 28.1 123 4.85 0.63 2.68 0.40 2.72 26.06 35.7 2.18 0.21 4H-6 45-47 cm 28.15 51.76 12.64 206 0.430 0.422 181 4.75 0.43 0.014 2.79 0.699 30.76 0.71 1.98 0.28 0.078 87 861 BDL 63 1.93 30.7 80 14.8 NM NM 0.47 BDL 28.9 25.0 9.5 5.8 24.8 5.7 1.46 5.87 0.85 5.09 1.01 2.58 0.34 2.26 0.35 0.41 0.05 0.28 0.30 11.07 30.5 198 5.55 0.62 3.99 0.59 NC NC 36.6 2.62 0.18 4H-7 45-47 cm 29.65 52.11 12.55 195 0.561 0.422 237 2.97 0.18 0.006 2.07 0.478 34.52 0.42 1.20 0.14 0.048 67 1093 BDL 37 0.95 22.1 45 17.3 NM NM 0.19 BDL 19.4 18.0 5.9 4.2 18.9 4.1 1.05 4.23 0.62 3.58 0.74 1.88 0.24 1.66 0.25 0.36 0.05 0.18 0.18 16.86 31.7 371 8.66 1.21 4.32 0.69 NC NC 48.8 3.05 0.16 4H-7 60-65 cm 29.80 52.15 12.54 193 0.574 0.422 242 3.05 0.26 0.009 3.20 0.593 30.65 0.58 1.32 0.17 0.053 76 898 BDL 59 1.06 32.2 64 19.6 NM NM 0.31 BDL 19.9 19.1 7.5 4.3 19.3 4.5 1.13 4.53 0.65 3.98 0.76 1.95 0.25 1.70 0.26 0.35 0.05 0.27 0.31 11.58 28.5 346 5.69 0.83 5.39 1.05 NC NC 55.7 2.55 0.19 5H-1 59-61 cm 30.29 52.34 12.48 187 0.617 0.422 260 4.28 0.35 0.012 4.50 0.948 30.57 0.70 2.46 0.23 0.065 130 877 BDL 76 2.15 54.5 116 26.2 NM NM 0.40 0.09 25.8 24.3 9.7 6.0 25.8 6.2 1.53 6.19 0.90 5.08 1.05 2.62 0.36 2.35 0.39 0.44 0.06 0.38 0.44 12.10 28.7 365 5.29 1.05 4.75 1.05 NC NC 59.7 2.52 0.18 5H-1 60-65 cm 30.30 52.34 * 12.48 187 0.618 0.422 261 4.85 0.32 0.012 3.72 0.835 29.73 0.97 2.52 0.24 0.064 123 838 1.1 69 2.08 46.1 112 37.2 13.4 5.4 0.34 0.06 26.5 23.1 9.2 6.0 26.6 6.4 1.61 6.33 0.92 5.31 1.07 2.69 0.37 2.44 0.40 0.63 BDL 0.42 0.45 15.25 25.8 301 5.17 1.00 4.46 0.77 2.62 NC 59.2 2.51 0.18 5H-2 29-34 cm 31.49 52.60 12.41 179 0.658 0.473 311 3.84 0.55 0.025 2.03 0.478 34.55 0.59 1.47 0.28 0.058 124 1120 2.2 48 2.18 24.1 129 14.2 19.5 9.3 0.61 0.05 23.9 20.2 13.5 4.8 21.5 5.0 1.25 5.04 0.76 4.31 0.89 2.26 0.29 2.02 0.30 0.26 0.04 0.83 0.47 6.98 22.1 82 2.33 0.50 4.26 0.53 4.25 48.27 53.9 1.50 0.31 5H-2 45-47 cm 31.65 52.63 12.40 178 0.658 0.473 311 3.17 0.52 0.024 2.27 0.521 33.91 1.57 1.55 0.30 0.059 138 1059 2.5 52 2.27 28.9 131 14.3 NM NM 0.69 0.04 23.8 20.1 12.8 5.1 21.7 5.2 1.29 5.17 0.76 4.47 0.92 2.39 0.33 2.14 0.36 0.24 0.05 0.80 0.43 6.06 22.0 96 2.48 0.58 4.36 0.72 NC 50.70 58.8 1.57 0.29 5H-3 45-47 cm 33.15 52.95 12.32 167 0.658 0.473 311 3.96 0.60 0.028 2.12 0.558 32.96 1.21 1.57 0.30 0.064 134 974 2.5 52 2.60 25.8 92 11.8 NM NM 0.73 0.05 27.1 23.0 14.7 5.3 23.4 5.5 1.37 5.73 0.81 4.61 0.94 2.42 0.32 2.15 0.34 0.21 0.05 0.95 0.39 6.56 21.8 77 2.30 0.48 3.80 0.54 NC 51.25 56.4 1.57 0.31 5H-3 139-144 cm 34.09 53.15 12.26 161 0.589 0.473 279 5.49 0.30 0.012 3.22 0.800 31.61 0.39 1.57 0.26 0.071 177 966 BDL 58 2.05 56.5 93 9.6 NM NM 0.37 BDL 27.0 24.3 10.2 5.6 25.4 5.8 1.48 5.90 0.88 5.17 1.03 2.64 0.35 2.35 0.36 0.17 0.05 0.32 0.36 18.10 24.5 260 5.76 1.43 4.02 0.59 NC NC 58.3 2.40 0.20 5H-3 140-144 cm 34.10 53.15 12.26 160 0.589 0.473 279 4.67 0.32 0.012 3.28 0.875 31.47 1.16 1.58 0.27 0.073 179 950 BDL 58 1.17 69.1 80 10.2 NM NM 0.39 BDL 28.6 26.5 10.6 6.3 26.9 6.3 1.59 6.45 0.93 5.42 1.10 2.82 0.37 2.46 0.39 0.17 0.06 0.31 0.40 14.42 27.6 279 6.20 1.52 3.75 0.70 NC NC 59.6 2.49 0.19 5H-4 45-47 cm 34.65 53.26 12.23 157 0.589 0.473 279 3.87 0.29 0.008 2.86 0.744 32.47 1.60 1.58 0.21 0.063 140 993 BDL 49 1.84 50.6 89 10.1 NM NM 0.25 BDL 24.4 23.1 8.8 5.3 22.8 5.2 1.32 5.36 0.78 4.53 0.92 2.30 0.32 2.07 0.32 0.18 0.05 0.25 0.27 13.42 34.0 337 7.42 1.65 3.84 0.74 NC NC 57.5 2.62 0.18 5H-5 29-34 cm 35.99 53.42 12.19 152 0.589 1.790 1055 4.46 0.37 0.011 4.00 0.992 31.97 1.10 1.50 0.26 0.090 178 929 BDL 131 2.01 46.6 129 13.3 NM NM 0.33 1.26 33.2 26.6 9.6 6.5 28.3 6.6 1.67 6.89 1.00 5.98 1.22 3.10 0.41 2.77 0.42 0.19 0.06 0.34 0.33 12.00 32.9 353 8.00 1.58 4.03 0.90 NC NC 68.6 2.76 0.17 5H-5 45-47 cm 36.15 53.43 12.19 151 0.589 1.790 1055 4.93 0.35 0.011 3.64 0.975 28.85 1.09 1.90 0.26 0.081 175 928 BDL 72 2.53 52.8 98 9.3 NM NM 0.34 0.02 32.7 28.1 10.3 6.7 30.4 6.4 1.48 6.53 1.01 5.87 1.23 3.10 0.41 2.67 0.42 0.15 0.05 0.30 0.38 13.93 31.6 325 7.22 1.56 3.73 0.74 NC NC 61.5 2.72 0.17 5H-6 45-47 cm 37.65 53.51 12.17 148 0.589 1.790 1055 5.47 0.38 0.013 3.53 0.820 30.43 1.08 2.22 0.29 0.078 191 910 2.7 60 1.52 41.2 112 8.5 NM NM 0.42 BDL 27.2 23.4 8.7 5.6 25.4 5.7 1.44 5.87 0.85 5.18 1.02 2.62 0.34 2.32 0.35 0.15 0.05 0.37 0.48 14.37 29.4 273 6.00 1.48 4.31 0.65 NC 55.90 57.8 2.68 0.17 5H-6 61-62 cm 37.81 53.52 12.16 148 0.589 1.790 1055 3.67 0.22 0.009 2.03 0.401 28.13 0.76 1.10 0.21 0.048 128 963 1.8 36 1.35 23.0 73 7.0 18.5 4.6 0.29 0.09 14.9 12.7 4.5 2.9 13.0 2.7 0.71 2.66 0.43 2.33 0.53 1.27 0.20 1.22 0.13 0.15 0.04 0.07 0.09 16.90 25.3 236 5.55 1.49 5.06 0.55 3.40 42.04 48.4 2.82 0.17 5H-6 90-94 cm 38.10 53.53 12.16 148 0.589 1.790 1055 6.08 0.32 0.012 4.58 1.027 27.94 1.06 1.96 0.31 0.102 172 849 2.6 70 2.43 104.1 105 9.5 27.5 6.6 0.42 BDL 32.4 28.1 10.1 6.7 28.7 6.6 1.69 6.96 0.98 5.95 1.20 3.06 0.41 2.82 0.44 0.20 0.05 0.32 0.41 19.14 26.0 375 8.37 1.41 4.45 0.75 2.71 48.55 47.6 2.79 0.17 5H-7 49-51 cm 39.19 53.60 * 12.14 146 0.589 1.790 1055 5.39 0.57 0.021 5.86 1.263 27.19 0.74 2.17 0.44 0.141 276 748 3.9 83 2.84 118.5 113 11.8 46.8 11.1 0.73 0.05 44.1 36.9 12.4 8.8 38.3 8.9 2.27 9.45 1.32 8.14 1.61 4.11 0.56 3.70 0.58 0.24 0.05 0.32 0.49 9.38 26.8 274 6.58 1.29 4.64 1.09 3.92 79.90 48.7 2.99 0.16 5H-7 89-94 cm 39.59 53.62 12.14 145 0.589 1.790 1055 5.26 0.50 0.018 5.45 1.193 27.17 0.77 2.25 0.37 0.127 253 756 3.2 80 2.61 101.4 84 12.2 32.2 9.4 0.63 BDL 44.3 37.5 10.8 8.2 36.3 8.4 1.92 8.85 1.33 7.64 1.62 4.08 0.56 3.57 0.58 0.26 0.05 0.23 0.48 10.45 28.1 305 7.08 1.41 4.57 1.04 3.60 63.85 47.9 3.48 0.14 6H-1 55-57 cm 39.75 53.63 12.13 145 0.589 1.790 1055 2.58 0.25 0.010 2.78 0.519 35.17 0.70 1.32 0.19 0.050 132 1078 BDL 54 1.20 54.9 52 11.1 NM NM 0.30 0.03 20.5 17.5 6.4 4.0 17.7 4.0 0.97 4.26 0.62 3.66 0.74 1.92 0.25 1.74 0.25 0.25 0.05 0.18 0.44 10.19 26.1 287 5.18 1.36 5.35 1.08 NC NC 44.3 2.72 0.18 6H-1 60-65 cm 39.80 53.63 12.13 145 0.589 1.790 1055 4.49 0.35 0.013 4.16 0.958 29.67 0.67 2.00 0.26 0.058 202 913 BDL 79 2.03 73.0 109 13.1 NM NM 0.49 BDL 24.4 21.4 8.6 5.3 23.1 5.5 1.37 5.63 0.81 4.74 0.94 2.40 0.32 2.15 0.35 0.28 0.05 0.40 0.40 12.68 26.8 315 4.38 1.53 4.35 0.93 NC NC 47.3 2.49 0.18 6H-2 30-35 cm 41.00 53.67 12.12 143 0.589 1.790 1055 7.35 0.59 0.022 5.23 1.320 24.90 1.29 2.54 0.39 0.101 292 640 3.5 97 2.64 111.0 176 20.0 NM NM 0.77 BDL 36.7 32.2 11.3 8.0 33.7 8.1 2.09 8.39 1.20 7.19 1.44 3.54 0.49 3.25 0.51 0.44 0.06 0.59 0.48 12.53 26.4 235 4.54 1.31 3.96 0.71 NC 61.99 45.0 2.85 0.16 6H-2 46-48 cm 41.16 53.67 12.12 143 0.589 1.790 1055 3.29 0.21 0.007 2.10 0.639 31.81 1.11 1.44 0.16 0.040 124 993 BDL 38 1.39 32.0 46 18.4 NM NM 0.30 BDL 17.5 16.0 6.7 3.7 16.1 3.6 0.88 3.73 0.52 3.17 0.64 1.71 0.22 1.46 0.23 0.49 0.05 0.21 0.37 15.62 31.8 317 6.04 1.87 3.28 0.64 NC NC 37.8 2.38 0.20 6H-2 75-76 cm 41.45 53.72 12.11 141 0.589 1.790 1055 4.07 0.29 0.009 3.13 0.760 30.46 0.68 1.26 0.23 0.077 187 971 BDL 55 2.25 58.3 53 16.2 NM NM 0.44 0.09 32.8 32.9 6.8 6.3 27.9 6.5 1.52 6.58 1.03 5.70 1.30 3.17 0.43 2.92 0.44 0.50 0.05 0.27 0.52 13.96 31.4 337 8.23 2.01 4.13 0.77 NC NC 32.6 4.87 0.11 6H-3 44-46 cm 42.64 53.75 12.10 141 0.589 2.090 1232 6.45 0.49 0.015 5.10 1.269 24.26 1.53 2.27 0.32 0.100 269 718 2.0 104 3.00 73.0 70 11.0 20.1 9.3 0.83 0.09 38.2 32.3 13.1 8.2 36.0 8.6 2.20 8.60 1.24 7.38 1.47 3.76 0.50 3.30 0.53 0.34 0.06 0.47 0.45 13.16 32.7 340 6.67 1.79 4.02 0.79 3.08 36.33 32.3 2.47 0.18 6H-3 145-150 cm 43.65 53.80 12.09 139 0.589 2.090 1232 2.14 0.24 0.009 1.96 0.561 34.25 0.66 1.21 0.20 0.051 144 1133 BDL 48 1.58 30.7 49 13.0 NM NM 0.48 0.16 19.6 16.5 6.4 3.9 16.7 4.1 1.04 4.17 0.61 3.67 0.75 1.96 0.27 1.78 0.29 0.37 0.06 0.33 0.33 9.09 26.4 220 5.70 1.62 3.50 0.92 NC NC 35.1 2.58 0.18 6H-4 45-47 cm 44.15 53.82 12.08 138 0.589 2.090 1232 4.49 0.32 0.009 3.57 0.983 30.48 0.77 1.85 0.25 0.061 229 989 BDL 79 1.81 50.3 89 10.5 NM NM 0.50 BDL 22.9 19.8 7.9 4.9 21.1 4.9 1.27 5.10 0.74 4.38 0.89 2.27 0.30 2.04 0.31 0.29 0.05 0.25 0.24 13.97 35.2 390 6.73 2.50 3.63 0.79 NC NC 35.5 2.51 0.18 6H-5 30-35 cm 45.50 53.89 12.06 136 0.589 2.090 1232 3.75 0.28 0.010 2.60 0.817 31.71 0.77 1.28 0.24 0.055 179 1053 BDL 58 1.65 50.3 86 10.5 14.5 6.6 0.50 BDL 24.0 22.3 7.3 5.1 22.9 5.2 1.17 5.18 0.79 4.39 0.98 2.36 0.32 2.04 0.30 0.28 0.05 0.16 0.21 13.24 29.5 270 5.78 1.87 3.18 0.69 4.01 NC 37.6 3.08 0.16 6H-5 45-47 cm 45.65 53.89 * 12.06 136 0.589 2.090 1232 2.94 0.31 0.010 2.00 0.722 34.16 0.69 1.60 0.26 0.052 135 1105 2.7 66 1.20 39.1 78 10.1 14.1 5.8 0.50 0.03 21.9 23.2 6.6 4.3 18.8 4.2 0.95 4.37 0.65 3.83 0.82 2.08 0.28 1.76 0.28 0.26 0.05 0.13 0.17 9.49 30.3 195 5.09 1.31 2.77 0.68 4.84 56.45 38.4 3.51 0.15 6H-6 74-78 cm 46.94 54.02 12.03 132 0.835 0.989 825 4.78 0.29 0.012 3.75 1.247 29.40 0.92 1.72 0.23 0.069 231 969 2.9 88 1.88 98.5 82 9.2 17.2 7.3 0.59 0.01 30.5 28.0 9.9 6.6 28.5 6.3 1.45 6.16 1.01 5.47 1.16 2.85 0.37 2.50 0.39 0.25 0.05 0.24 0.40 16.21 24.5 312 5.74 1.92 3.01 0.79 3.89 61.75 36.5 2.82 0.17 8H-1 35-40 cm 50.55 54.38 11.93 120 0.835 0.989 825 4.23 0.24 0.011 2.75 0.734 29.66 0.77 1.45 0.20 0.066 152 971 2.4 53 1.01 72.0 78 12.5 12.5 5.1 0.40 BDL 22.4 21.8 7.7 4.6 19.9 4.2 0.94 4.06 0.66 3.76 0.82 2.05 0.27 1.81 0.27 0.30 0.05 0.23 0.39 17.41 22.4 253 6.12 1.40 3.74 0.65 5.08 49.89 41.1 2.82 0.18 8H-3 146-148 cm 54.66 54.80 11.81 106 0.835 0.989 825 9.40 0.73 0.028 9.90 2.041 18.84 1.51 2.16 0.55 0.173 498 440 BDL 240 4.42 231.2 182 16.9 26.9 11.3 0.94 0.06 53.8 47.4 16.2 11.0 47.7 10.6 2.52 10.98 1.64 9.36 1.98 5.00 0.68 4.55 0.72 0.46 0.05 0.60 0.39 12.95 25.5 348 6.08 1.75 4.85 1.05 2.56 NC 36.8 2.92 0.16 8H-7 20-35 cm 59.40 55.28 11.68 90 0.835 0.989 825 2.90 0.31 0.011 3.93 1.330 31.68 0.61 1.03 0.19 0.067 238 1025 1.4 78 1.14 113.8 79 15.2 28.2 6.0 0.91 BDL 38.8 33.3 11.5 7.8 35.0 8.1 1.86 8.44 1.26 7.09 1.53 3.64 0.50 3.13 0.49 0.35 0.05 0.21 0.33 9.40 27.1 345 5.89 2.09 2.96 1.35 5.26 25.43 43.4 2.88 0.16 9H-1 17-21 cm 59.87 55.32 11.67 89 0.889 0.989 879 1.89 0.23 0.008 3.81 0.759 33.39 0.44 0.89 0.14 0.078 171 1147 1.2 54 1.17 103.7 74 9.3 17.3 5.3 0.65 BDL 23.2 21.1 5.7 4.4 19.6 4.2 0.99 4.47 0.68 3.86 0.83 2.11 0.28 1.74 0.28 0.25 0.04 0.14 0.33 8.41 28.5 483 9.89 2.17 5.02 2.01 4.50 29.42 37.4 3.71 0.14 9H-2 27-32 cm 61.47 55.48 11.63 83 0.960 0.989 950 2.92 0.37 0.014 4.71 1.502 32.21 0.39 0.93 0.22 0.098 305 1016 1.9 68 1.69 152.8 151 8.6 32.6 5.4 0.99 BDL 34.2 37.1 10.0 7.3 32.4 7.2 1.66 7.41 1.12 6.39 1.38 3.45 0.46 3.04 0.47 0.26 0.05 0.24 0.40 7.97 26.4 339 7.03 2.19 3.13 1.61 3.17 41.01 33.3 3.70 0.14 9H-3 130-134 cm 64.00 55.74 11.56 75 1.073 0.989 1061 2.05 0.22 0.007 3.73 0.855 33.03 0.58 1.11 0.12 0.106 164 1110 1.5 52 2.12 87.0 61 8.6 21.6 4.7 0.77 0.01 19.3 17.9 5.4 3.5 15.9 3.4 0.80 3.53 0.55 3.31 0.71 1.83 0.25 1.75 0.27 0.28 0.05 0.13 0.39 9.41 30.0 513 14.59 2.26 4.37 1.82 2.23 30.11 30.5 3.33 0.15 9H-5 30-35 cm 66.00 56.21 11.43 59 1.162 0.681 791 2.03 0.22 0.007 4.89 0.687 33.09 0.68 1.38 0.14 0.125 168 1091 BDL 51 1.78 96.0 74 9.8 14.8 3.1 0.72 BDL 20.7 19.0 5.9 4.0 17.7 4.0 0.90 4.20 0.65 3.61 0.78 1.97 0.27 1.69 0.26 0.35 0.05 0.10 0.44 9.38 33.2 751 19.21 2.58 7.12 2.41 1.76 NC 28.2 3.20 0.16 9H-5 74-75 cm 66.44 56.28 11.41 57 1.181 0.681 804 2.83 0.37 0.010 7.89 0.947 34.24 0.28 0.70 0.24 0.152 246 1148 2 105 2.11 154 119 9.9 1.2 2.2 1.07 0.12 35.6 31.2 7.0 5.9 26.4 5.5 1.30 5.43 0.89 4.83 1.10 2.77 0.42 2.66 0.35 0.39 0.04 0.09 0.45 7.65 38.7 826 15.93 2.57 8.33 2.79 1.05 45.06 25.3 4.48 0.12 Analytical 3.2 1.2 1.3 0.8 1.4 2.6 1.9 1.6 1.1 3.0 1.5 2.6 3.2 3.2 1.5 3.2 3.3 2.9 3.3 2.3 3.0 4.5 2.7 2.6 2.0 1.9 1.3 2.0 2.8 3.5 3.3 1.5 1.9 3.5 2.9 2.5 2.9 3.1 3.5 1.8 2.6 Avg shale (29.36 10.00 0.600 5.05 0.085 0.93 1.33 0.89 3.07 0.070 650 200 110 55 16.00 150.0 85 210 75.0 160.0 19.00 15.00 27.0 38.0 80.0 8.9 32.0 5.6 1.10 4.70 0.77 4.40 1.00 2.90 0.40 2.80 0.43 5.00 NM 14.60 3.10 2.93 16.7 8 0.12 0.11 59.3 0.17 10.00 42.0 0.48 1.00 Avg pelagic25.00 8.40 0.460 6.50 0.670 0.93 2.10 4.00 2.50 0.150 2300 180 90 230 19.00 120.0 200 150 57.0 110.0 14.00 6.00 40.0 42.0 80.0 10.0 41.0 8.0 1.80 8.30 1.30 7.40 1.50 4.10 0.70 3.80 0.55 4.10 1.00 13.40 2.60 2.98 18.3 14 0.33 0.50 9.7 0.26 5.79 90.00 36.6 0.53 0.90 Major elements reported as wt%, ratios as g/g, and traces as ppm. Data over-specified for calculation purposes. See text for discussion of true analytical precision. Ce/Ce* = Cen / (0.5 x {Lan + Prn}), where "n" refers to the shale-normalized abundance. * Represents an average of three analyses. BDL = below detection limit. NM = not measured. NM = not calculated. Post-Archean average Australian shale (PAAS) and average pelagic clay (APC) values from Taylor and McLennan [1985]. 2. Table 1. Cofficients of determination (r2) for red clay unit (0-23.5 mbsf; n=27). Si Al Ti Fe Mn Ca Mg Na K P Ba Sr Cr Ni Sc V Zn Zr Li Rb Nb Cs Y La Ce Pr Nd Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Hf Ta Th U Si 1.00 Al 0.95 1.00 Ti 0.79 0.83 1.00 Fe -0.87 -0.92 -0.63 1.00 Mn -0.83 -0.92 -0.87 0.83 1.00 Ca -0.06 -0.10 -0.29 0.04 0.26 1.00 Mg -0.14 -0.16 0.00 0.35 0.08 -0.10 1.00 Na 0.00 -0.01 -0.20 -0.01 0.07 0.35 -0.53 1.00 K 0.79 0.85 0.53 -0.93 -0.74 -0.04 -0.45 0.04 1.00 P -0.14 -0.19 -0.46 0.09 0.36 0.85 -0.12 0.46 -0.07 1.00 Ba 0.00 0.00 0.14 0.03 -0.03 -0.50 0.44 -0.53 -0.03 -0.57 1.00 Sr -0.72 -0.80 -0.76 0.73 0.90 0.28 0.05 0.09 -0.61 0.32 -0.02 1.00 Cr 0.60 0.64 0.92 -0.41 -0.74 -0.46 0.03 -0.37 0.33 -0.63 0.35 -0.67 1.00 Ni 0.01 0.00 0.05 -0.03 0.02 0.57 -0.30 0.49 0.03 0.52 -0.56 0.04 -0.18 1.00 Sc 0.61 0.65 0.47 -0.67 -0.54 0.01 0.15 0.00 0.51 0.00 -0.08 -0.46 0.27 0.15 1.00 V -0.73 -0.82 -0.54 0.92 0.78 0.04 0.31 0.00 -0.83 0.08 0.06 0.71 -0.33 -0.03 -0.64 1.00 Zn -0.68 -0.74 -0.49 0.86 0.69 0.06 0.28 -0.01 -0.83 0.12 0.04 0.61 -0.31 -0.01 -0.45 0.87 1.00 Zr 0.63 0.68 0.39 -0.78 -0.53 0.00 -0.45 0.05 0.73 -0.01 -0.13 -0.42 0.17 0.16 0.64 -0.71 -0.58 1.00 Li 0.74 0.80 0.93 -0.62 -0.86 -0.26 0.00 -0.21 0.47 -0.40 0.11 -0.78 0.86 -0.03 0.54 -0.57 -0.44 0.39 1.00 Rb 0.81 0.87 0.95 -0.73 -0.87 -0.21 -0.03 -0.10 0.63 -0.38 0.05 -0.70 0.79 -0.01 0.54 -0.66 -0.60 0.52 0.86 1.00 Nb 0.83 0.88 0.99 -0.70 -0.89 -0.26 -0.01 -0.15 0.58 -0.43 0.10 -0.75 0.87 -0.03 0.50 -0.62 -0.55 0.44 0.92 0.96 1.00 Cs 0.65 0.69 0.96 -0.48 -0.78 -0.39 0.01 -0.32 0.38 -0.59 0.25 -0.67 0.97 -0.12 0.35 -0.41 -0.36 0.24 0.89 0.87 0.93 1.00 Y -0.06 -0.04 -0.06 0.01 0.05 0.01 -0.03 0.03 -0.01 0.08 -0.11 0.04 -0.09 0.05 0.00 0.00 0.00 0.00 -0.04 -0.04 -0.05 -0.05 1.00 La -0.45 -0.53 -0.60 0.42 0.72 0.53 0.00 0.13 -0.40 0.67 -0.21 0.63 -0.65 0.14 -0.12 0.40 0.43 -0.12 -0.57 -0.57 -0.61 -0.61 0.13 1.00 Ce 0.05 0.08 0.03 -0.12 -0.05 0.02 -0.10 0.03 0.11 0.02 -0.10 -0.04 0.01 0.08 0.22 -0.09 -0.05 0.25 -0.06 -0.07 -0.05 -0.02 0.00 0.00 1.00 Pr -0.37 -0.47 -0.57 0.38 0.62 0.55 0.00 0.22 -0.32 0.62 -0.18 0.64 -0.62 0.20 -0.13 0.40 0.40 -0.11 -0.57 -0.51 -0.56 -0.57 0.02 0.75 0.00 1.00 Nd -0.35 -0.44 -0.59 0.32 0.62 0.60 0.00 0.27 -0.26 0.66 -0.25 0.64 -0.67 0.27 -0.12 0.32 0.33 -0.07 -0.59 -0.50 -0.56 -0.60 0.09 0.78 0.00 0.92 1.00 Sm -0.36 -0.44 -0.58 0.32 0.62 0.56 0.00 0.26 -0.26 0.64 -0.25 0.64 -0.66 0.27 -0.13 0.31 0.31 -0.07 -0.59 -0.49 -0.55 -0.59 0.11 0.78 0.00 0.91 0.99 1.00 Eu -0.38 -0.45 -0.58 0.34 0.62 0.57 0.00 0.24 -0.28 0.65 -0.26 0.64 -0.66 0.25 -0.12 0.32 0.34 -0.07 -0.58 -0.49 -0.56 -0.59 0.09 0.79 0.00 0.94 0.99 0.99 1.00 Gd -0.32 -0.38 -0.54 0.26 0.56 0.61 -0.01 0.28 -0.22 0.69 -0.31 0.57 -0.65 0.30 -0.08 0.25 0.28 -0.03 -0.53 -0.45 -0.51 -0.57 0.10 0.79 0.01 0.91 0.99 0.98 0.99 1.00 Tb -0.30 -0.37 -0.52 0.25 0.54 0.61 -0.02 0.28 -0.21 0.67 -0.31 0.56 -0.64 0.30 -0.07 0.25 0.26 -0.03 -0.52 -0.42 -0.49 -0.55 0.08 0.76 0.02 0.91 0.98 0.97 0.98 1.00 1.00 Dy -0.25 -0.32 -0.48 0.21 0.48 0.64 -0.02 0.29 -0.18 0.69 -0.33 0.50 -0.60 0.33 -0.05 0.21 0.24 -0.02 -0.47 -0.38 -0.45 -0.51 0.06 0.74 0.02 0.92 0.96 0.96 0.97 0.98 0.99 1.00 Ho -0.22 -0.28 -0.45 0.18 0.46 0.66 -0.03 0.30 -0.15 0.70 -0.36 0.48 -0.58 0.35 -0.04 0.18 0.21 -0.01 -0.45 -0.35 -0.41 -0.49 0.08 0.74 0.03 0.87 0.96 0.94 0.96 0.98 0.99 0.99 1.00 Er -0.20 -0.25 -0.43 0.15 0.43 0.65 -0.05 0.34 -0.12 0.72 -0.42 0.44 -0.58 0.38 -0.02 0.14 0.17 0.00 -0.42 -0.32 -0.39 -0.48 0.09 0.73 0.05 0.83 0.93 0.92 0.93 0.97 0.97 0.97 0.99 1.00 Tm -0.21 -0.26 -0.44 0.15 0.45 0.68 -0.04 0.34 -0.12 0.73 -0.42 0.47 -0.59 0.38 -0.02 0.15 0.16 0.00 -0.43 -0.32 -0.40 -0.49 0.10 0.77 0.04 0.82 0.93 0.92 0.93 0.96 0.96 0.96 0.98 0.99 1.00 Yb -0.17 -0.22 -0.37 0.12 0.39 0.66 -0.05 0.31 -0.10 0.68 -0.42 0.42 -0.53 0.37 -0.01 0.12 0.13 0.00 -0.37 -0.26 -0.33 -0.42 0.10 0.73 0.06 0.80 0.90 0.89 0.90 0.94 0.95 0.95 0.97 0.98 0.99 1.00 Lu -0.13 -0.17 -0.33 0.08 0.34 0.65 -0.08 0.36 -0.06 0.67 -0.46 0.38 -0.51 0.44 -0.01 0.08 0.09 0.00 -0.34 -0.22 -0.29 -0.40 0.13 0.69 0.06 0.76 0.86 0.86 0.85 0.90 0.90 0.90 0.94 0.96 0.98 0.98 1.00 Hf 0.78 0.83 0.49 -0.92 -0.66 0.00 -0.42 0.04 0.85 -0.01 -0.11 -0.58 0.25 0.13 0.77 -0.85 -0.72 0.89 0.50 0.61 0.56 0.33 0.00 -0.22 0.17 -0.21 -0.17 -0.17 -0.18 -0.12 -0.11 -0.08 -0.06 -0.04 -0.04 -0.03 -0.01 1.00 Ta 0.80 0.85 0.99 -0.65 -0.88 -0.29 0.00 -0.19 0.54 -0.47 0.14 -0.75 0.91 -0.04 0.46 -0.57 -0.51 0.39 0.93 0.95 1.00 0.96 -0.05 -0.62 0.04 -0.58 -0.58 -0.58 -0.58 -0.54 -0.52 -0.47 -0.44 -0.42 -0.43 -0.36 -0.32 0.51 1.00 Th 0.78 0.86 0.58 -0.94 -0.76 -0.04 -0.39 0.01 0.94 -0.11 -0.02 -0.59 0.36 0.03 0.51 -0.88 -0.83 0.77 0.54 0.73 0.67 0.46 -0.01 -0.41 0.10 -0.33 -0.27 -0.27 -0.28 -0.22 -0.20 -0.17 -0.14 -0.12 -0.12 -0.09 -0.06 0.83 0.62 1.00 U 0.01 0.00 0.09 0.01 0.00 -0.07 0.25 -0.19 -0.02 -0.16 0.30 0.01 0.16 -0.14 0.00 0.05 0.01 -0.05 0.05 0.07 0.07 0.16 -0.05 0.00 0.00 -0.01 -0.02 -0.02 -0.01 -0.02 -0.02 -0.03 -0.02 -0.03 -0.02 -0.01 -0.02 -0.04 0.09 0.00 1.00 All r2 values >0.7 have a probability percentage greater than 99% [Taylor, 1997; p. 219]. 3. Table 2. Coefficients of determination (r2) for nannofossil ooze unit (25-66.44 mbsf; n=42). Si Al Ti Fe Mn Ca Mg Na K P Ba Sr Ni Sc V Zn Zr Nb Y La Ce Pr Nd Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Hf Ta Th U Si 1.00 Al 0.71 1.00 Ti 0.71 0.95 1.00 Fe 0.43 0.44 0.37 1.00 Mn 0.71 0.71 0.67 0.67 1.00 Ca -0.80 -0.73 -0.73 -0.50 -0.83 1.00 Mg 0.58 0.50 0.56 0.21 0.51 -0.72 1.00 Na 0.77 0.66 0.66 0.27 0.62 -0.78 0.66 1.00 K 0.73 0.85 0.85 0.44 0.78 -0.91 0.71 0.79 1.00 P 0.57 0.76 0.66 0.76 0.76 -0.67 0.33 0.46 0.69 1.00 Ba 0.45 0.45 0.41 0.78 0.74 -0.51 0.26 0.26 0.47 0.62 1.00 Sr -0.88 -0.66 -0.67 -0.47 -0.77 0.89 -0.67 -0.84 -0.80 -0.56 -0.47 1.00 Ni 0.60 0.46 0.43 0.72 0.66 -0.49 0.29 0.32 0.43 0.55 0.68 -0.56 1.00 Sc 0.70 0.88 0.85 0.43 0.73 -0.84 0.62 0.73 0.89 0.75 0.39 -0.69 0.38 1.00 V 0.12 0.17 0.13 0.73 0.41 -0.17 0.02 0.03 0.14 0.47 0.71 -0.13 0.43 0.12 1.00 Zn 0.70 0.82 0.82 0.51 0.72 -0.64 0.43 0.57 0.71 0.68 0.50 -0.61 0.55 0.72 0.24 1.00 Zr 0.50 0.62 0.62 0.27 0.54 -0.68 0.50 0.64 0.67 0.43 0.18 -0.58 0.27 0.71 0.04 0.54 1.00 Nb 0.35 0.66 0.63 0.58 0.68 -0.50 0.26 0.29 0.56 0.74 0.61 -0.37 0.41 0.61 0.45 0.60 0.34 1.00 Y 0.59 0.44 0.48 0.51 0.68 -0.65 0.52 0.51 0.64 0.50 0.55 -0.68 0.50 0.51 0.22 0.44 0.31 0.44 1.00 La 0.58 0.46 0.48 0.50 0.72 -0.64 0.47 0.51 0.65 0.53 0.57 -0.67 0.47 0.51 0.26 0.47 0.30 0.48 0.96 1.00 Ce 0.59 0.52 0.62 0.24 0.53 -0.63 0.68 0.62 0.69 0.35 0.30 -0.65 0.31 0.56 0.04 0.48 0.38 0.37 0.79 0.76 1.00 Pr 0.67 0.50 0.53 0.47 0.73 -0.68 0.54 0.62 0.68 0.50 0.55 -0.75 0.50 0.54 0.21 0.51 0.34 0.43 0.95 0.96 0.83 1.00 Nd 0.67 0.51 0.54 0.48 0.74 -0.69 0.54 0.61 0.68 0.52 0.55 -0.75 0.50 0.55 0.21 0.52 0.35 0.45 0.96 0.97 0.83 1.00 1.00 Sm 0.64 0.50 0.53 0.45 0.71 -0.69 0.56 0.64 0.69 0.48 0.53 -0.75 0.46 0.55 0.18 0.49 0.36 0.42 0.94 0.95 0.84 0.99 0.99 1.00 Eu 0.64 0.49 0.51 0.44 0.68 -0.66 0.55 0.64 0.67 0.45 0.51 -0.75 0.45 0.52 0.17 0.48 0.35 0.38 0.91 0.90 0.81 0.97 0.96 0.98 1.00 Gd 0.64 0.51 0.52 0.46 0.71 -0.65 0.52 0.61 0.67 0.49 0.55 -0.74 0.48 0.52 0.21 0.49 0.33 0.43 0.93 0.94 0.80 0.99 0.98 0.99 0.98 1.00 Tb 0.65 0.51 0.53 0.47 0.73 -0.69 0.53 0.61 0.69 0.51 0.55 -0.73 0.48 0.55 0.21 0.50 0.35 0.45 0.96 0.97 0.82 0.99 1.00 0.99 0.96 0.99 1.00 Dy 0.65 0.49 0.51 0.46 0.71 -0.66 0.51 0.61 0.66 0.50 0.55 -0.74 0.48 0.52 0.21 0.49 0.32 0.42 0.95 0.95 0.80 0.99 0.99 0.99 0.98 1.00 0.99 1.00 Ho 0.64 0.50 0.52 0.49 0.74 -0.69 0.53 0.58 0.68 0.53 0.57 -0.72 0.49 0.55 0.22 0.50 0.35 0.46 0.97 0.98 0.80 0.99 0.99 0.98 0.95 0.98 1.00 0.99 1.00 Er 0.62 0.49 0.51 0.49 0.72 -0.68 0.54 0.58 0.68 0.52 0.57 -0.72 0.49 0.54 0.22 0.48 0.34 0.45 0.98 0.97 0.81 0.99 0.99 0.99 0.96 0.98 0.99 0.99 1.00 1.00 Tm 0.61 0.47 0.50 0.52 0.71 -0.69 0.55 0.54 0.67 0.52 0.57 -0.70 0.49 0.55 0.23 0.48 0.36 0.46 0.99 0.95 0.79 0.95 0.97 0.95 0.92 0.94 0.96 0.95 0.97 0.98 1.00 Yb 0.63 0.47 0.51 0.52 0.71 -0.69 0.55 0.56 0.67 0.52 0.58 -0.72 0.51 0.55 0.23 0.49 0.35 0.45 0.99 0.96 0.79 0.97 0.97 0.96 0.94 0.95 0.97 0.97 0.98 0.99 0.99 1.00 Lu 0.63 0.48 0.52 0.51 0.71 -0.67 0.54 0.58 0.66 0.51 0.58 -0.72 0.51 0.54 0.23 0.48 0.35 0.44 0.96 0.94 0.80 0.97 0.97 0.97 0.95 0.97 0.97 0.97 0.98 0.99 0.98 0.99 1.00 Hf 0.50 0.67 0.63 0.35 0.63 -0.73 0.47 0.60 0.72 0.57 0.27 -0.58 0.31 0.76 0.10 0.53 0.91 0.50 0.35 0.38 0.37 0.38 0.39 0.40 0.36 0.37 0.40 0.36 0.40 0.38 0.39 0.38 0.38 1.00 Ta 0.48 0.70 0.63 0.36 0.63 -0.68 0.51 0.57 0.73 0.56 0.36 -0.51 0.31 0.75 0.14 0.55 0.75 0.45 0.31 0.31 0.34 0.35 0.36 0.38 0.38 0.36 0.36 0.35 0.36 0.36 0.37 0.37 0.38 0.72 1.00 Th 0.28 0.41 0.52 0.05 0.13 -0.17 0.27 0.26 0.26 0.11 0.09 -0.22 0.14 0.27 0.00 0.36 0.20 0.18 0.13 0.11 0.37 0.17 0.16 0.18 0.21 0.19 0.16 0.17 0.15 0.15 0.14 0.15 0.18 0.13 0.19 1.00 U 0.45 0.62 0.60 0.39 0.50 -0.46 0.30 0.49 0.52 0.59 0.31 -0.43 0.25 0.63 0.17 0.52 0.46 0.49 0.35 0.37 0.35 0.39 0.40 0.39 0.38 0.40 0.40 0.40 0.40 0.39 0.38 0.39 0.41 0.50 0.45 0.29 1.00 All r2 values >0.5 have a probability percentage greater than 99% [Taylor, 1997; p. 219]. 4. Table 3. End-member compositions produced by Q-mode, varimax rotated factor analyses (n=69). Factor % Explained Si Al Ti Fe Mn Ca P Ba Sr Sc V Zn Th Si/Al Al/Ti Fe/Ti P/Ti Ba/Ti Fe/Mn Fe/Si 1 Biogenic 60.9 3.6 0.14 0.00 2.60 0.59 36 0.04 136 1064 0.7 40.6 71 info lost 25.7 29.2 541 9.08 2.82 4.4 0.72 2 Lithogenic 30.1 36 14.9 0.78 0.19 info los 4.48 0.39 773 286 37 45 117 39.57 2.4 19.1 0.2 0.50 0.10 IM 0.01 3 Authigenic 6.5 8.1 0.96 0.02 10.61 3.01 7.70 0.29 433 404 8.0 223 257 info lost 8.4 40.8 449 12.42 1.84 3.5 1.31 Average shale (PAAS) 28.84 10.00 0.600 4.72 0.08 4.28 0.05 650 200 16.0 150 85 15 2.9 16.7 8 0.08 0.11 60 0.16 NASC1 30.29 8.93 0.474 4.35 0.05 2.63 0.07 636 142 14.9 IM IM 12 3.4 18.9 9 0.16 0.13 80 0.14 Average red clay2 25.67 8.79 0.460 5.39 0.19 2.43 0.11 2300 710 25.0 117 200 IM 2.9 19.1 12 0.24 0.50 28 0.21 Average red clay3 25.00 8.40 0.46 6.50 0.67 0.93 0.15 180 19.0 120 200 13 3.0 18.3 14 0.33 IM 10 0.26 Major elements reported as wt%, ratios as g/g, and traces as ppm. Data over-specified for calculation purposes. PAAS values from Taylor and McLennan [1985; p.28]. 1) North American Shale Composite from Gromet et al. [1984]. 2) Average pelagic clay from Bischoff et al. [1979]. 3) Average pelagic clay from Taylor and McLennan [1985; p.15]. Info lost = artifact of statistical rotation into positive compositional space. IM = information missing 5. Table 4. Chemical characteristics of surface sediment (0-1 mbsf; 0-0.5 Ma) and lithogenic end-member sources. Si/Al Al/Ti K/Mg Zr/Hf Cs/Al Sc/Th Rb/Sr Rb/Sc La/Yb Cr/Ta (g/g) (g/g) (g/g) (ug/ug) (ug/g) (ug/ug) (ug/ug) (ug/ug) (ug/ug) (ug/ug) Surface Sediment LL44-GPC3 (n=5) 2.87 17.7 1.6 NA 1.51 1.5 0.93 7.42 13.0 90 Site 1215 (n=2) 2.69 16.2 1.4 35.5 1.39 1.0 0.77 5.69 9.4 79 References Avg Shale 2.93 16.7 2.3 42.0 1.50 1.10 0.80 10.0 13.6 NA Avg Pelagic Clay 2.98 18.3 1.2 36.6 0.71 1.42 0.61 5.8 11.1 90 Avg loess (n=42) 4.71 17.6 1.7 37.4 0.79 0.25 0.40 9.6 13.6 32.7 Felsic volcanics (RGM) 4.73 45.4 21.53 35.3 1.32 0.29 1.38 34 9.2 3.9 Hawaiian Basalt (BHVO) 3.23 4.43 0.10 41.4 N/A 29 0.03 0.3 7.8 235 Data over-specified for calculation purposes Average shale and average pelagic clay from Taylor and McLennan [1985]. Average loess from Taylor and McLennan [1985] and Jahn et al. [2001]. Felsic voclanics represented by USGS geologic standard reference material, RGM, Glass Mountian, CA, USA. Hawaiian basalt represented by USGS standard reference material, BHVO, USA. 6. Table 5. Correlation coefficient (r) for export production ratios (g/g) within the depth intervals of 30-60 mbsf (n=30) Al/Ti Ba/Ti P/Ti Fe/Ti Al/Ti 1.00 Ba/Ti 0.64 1.00 P/Ti 0.61 0.72 1.00 Fe/Ti 0.61 0.78 0.86 1.00