IODP Proceedings, Volume 317 Site U1352, Table T16. Diatom abundance, preservation, and distribution, Site U1352. Notes: Samples 317-U1352C-13R-CC through 148R-CC were barren. Abundance: C = common, F = few, R = rare, B = barren, X = present. Preservation: M = moderate, P = poor, — = no data. HO = highest occurrence. Core, section Top depth CSF-A (m) Group abundance Preservation Marine Actinocylus actinochilus Actinocylus karstenii Actinoptychus bipunctatus Actinoptychus senarius Coscinodiscus radiatus Delphineis spp. Diploneis splendida Fragilariopsis cylindrica Fragilariopsis fossilis Fragilariopsis kerguelensis Fragilariopsis obliquecostata Grammatophora sp. Hemidiscus karstenii Hemidiscus sp. 1 of Zielinski & Gersonde (2002) Hyalodiscus sp. Rhizosolenia hebetata Rhizosolenia hebetata f. hiemalis Stephanopyxis turris Stephanopyxis spp. Thalassiosira eccentrica Thalassiosira fasciculata Thalassiosira gracilis Thalassiosira lentiginosa Thalassiosira oestrupii Thalassiosira spp. Thalassiothrix longissima Coastal upwelling Resting spores of Chaetoceros Coastal Paralia sulcata Thalassionema nitzschioides Fresh or brackish water Aulacoseira granulata Cocconeis fasciolata Cyclotella spp. Navicula spp. Nitzschia? sp. 1 Pinularia sp. Pleurosigma directum Comments 317-U1352A- 1H-CC 4.21 B — 2H-CC 13.67 B — 3H-CC 23.10 B — 4H-CC 33.43 B — 5H-CC 43.06 B — 317-U1352B- 1H-CC 7.93 R P R X X X X 2H-CC 17.48 B — 3H-CC 27.12 X P X 4H-CC 36.96 X P X 5H-CC 46.38 B — 6H-CC 55.46 R P X X X X R X X 7H-CC 64.45 B — 8H-CC 74.56 X P 9H-CC 83.87 B — 10H-CC 93.61 B — 11H-CC 103.14 X P 12H-CC 112.82 R M R X R X 13H-CC 121.10 F M X F X X X X X X X X 14H-CC 130.26 R M R X X X 15H-CC 141.14 X P 16H-CC 150.74 F M F F R X R R X R R R F X 17H-CC 155.99 R M X X X X X R X 18H-CC 164.18 X P X X 19H-CC 173.71 R M X X X X X X X 20H-CC 180.38 X P X X X X X X X 21H-CC 189.06 F M R X R X X X X F X 22H-CC 198.87 F M X X X X R X F F 23H-CC 208.46 F M X X X X X X X R X F HO Fragilariopsis fossilis (>0.67–0.72 Ma) 24H-CC 217.96 F M X X X X R X F F X X 25H-CC 227.00 R M X X X X X 26H-CC 235.48 F M X X X X X X X X X X X X R 27H-CC 246.08 F M X X X X X X X F X X 28H-CC 250.70 B — 29H-CC 257.09 X P X X 30H-CC 266.92 X P X X X X X X 31H-CC 272.44 X P X 32H-CC 280.84 X P X X 33H-CC 288.17 X P 34H-CC 292.54 X P X R R R X 35H-CC 295.24 R M X X X X R R R X 36H-CC 297.01 B — 37X-CC 299.55 X P X X 38X-CC 310.85 R M X X X X X X R X X X X 39X-CC 321.55 X P X X X X 40X-CC 330.54 B — 41X-CC 340.91 X P X X X X 42X-CC 348.59 X P X X X X R X 43X-CC 360.08 B — 44X-CC 369.84 X P X 45X-CC 378.55 X P X X 46X-CC 388.95 B — 47X-CC 398.56 X P X 48X-CC 408.18 X P X X 49X-CC 412.30 B — 50X-CC 427.34 X P 51X-CC 436.82 B — 52X-CC 446.38 B — 53X-CC 455.49 X P X X 54X-CC 463.67 X P X X X 55X-CC 469.84 F M X X X X X X X R R X HO? Actinocyclus karstenii (>1.59–1.87 Ma) 56X-CC 484.83 X P X 57X-CC 491.74 B — 58X-CC 504.14 B — 59X-CC 507.09 B — 60X-CC 514.61 B — 61X-CC 525.34 B — 62X-CC 542.58 R M R R X 63X-CC 552.15 X P X 64X-CC 557.28 B — 65X-CC 562.35 X P 66X-CC 572.40 X P X 67X-CC 573.33 B — 68X-CC 583.56 B — 69X-CC 590.70 B — 70X-CC 601.19 B — 71X-CC 614.56 B — 72X-CC 626.26 B — 73X-CC 637.97 B — 74X-CC 648.16 B — 75X-CC 657.75 B — 76X-CC 667.33 B — 77X-CC 669.80 B — 78X-CC 679.51 B — 79X-CC 687.46 B — 80X-CC 703.25 B — 81X-CC 710.42 X P X 82X-CC 710.65 X P X 83X-CC 715.70 B — 84X-CC 725.30 X P X X R X 85X-CC 739.85 B — 86X-CC 744.85 B — 87X-CC 756.10 B — 88X-CC 765.72 B — 89X-CC 773.20 B — 90X-CC 783.61 B — 91X-CC 793.02 B — 92X-CC 802.78 B — 93X-CC 811.70 B — 94X-CC 821.74 B — 317-U1352C 2R-CC 576.47 B — 3R-CC 588.04 B — 4R-CC 601.23 B — 6R-CC 661.16 B — 7R-CC 671.20 X P X 8R-CC 680.24 X P X 9R-CC 690.03 X P X 10R-CC 701.00 C M X X X X X X C X X 11R-CC 709.73 X P X 12R-CC 719.46 X P X 13R-CC 728.93 B — All samples barren from 13R-CC through 148R-CC * * — 148R-CC 1917.90 B — 317-U1352D 1H-CC 3.55 B — 2H-CC 13.32 B — 3H-CC 22.33 B — 4H-CC 32.60 B — 5H-CC 41.98 X P X 6H-CC 51.26 X P X 7H-CC 60.32 F M X X X X R X X X 8H-CC 70.00 B — X 9H-CC 79.80 B — 10H-CC 88.92 F M X X X X X X X X R X 11H-CC 98.23 X P X 12H-CC 108.06 X P X X? X X X R X X HO Hemidiscus karstenii (0.28–0.33 Ma) 13H-CC 117.72 B — 14H-CC 127.61 X P X X X X X