Table T13. Biostratigraphic events identified, Site 1171.
Group | Hole | Bioevent | Age (Ma) |
Interval (cm) | Depth (mbsf) | Mean (mbsf) |
+/- | Top (mcd) |
Bottom (mcd) |
Mean (mcd) |
+/- | |||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Top
|
Bottom
|
Top
|
Bottom
|
|||||||||||
D | 1171A | LO Fragilariopsis reinholdii | 0.7 | 1H-CC | 2H-CC | 7.02 | 16.10 | 11.56 | 4.54 | 7.02 | 16.84 | 11.93 | 4.91 | |
R | 1171A | LO Antarctissa sp. G | 0.7 | 2H-CC | 3H-CC | 16.10 | 24.76 | 20.43 | 4.33 | 16.84 | 25.32 | 21.08 | 4.24 | |
D | 1171A | LO Thalassiosira fasciculata | 0.7 | 1H-CC | 2H-CC | 7.02 | 16.10 | 11.56 | 4.54 | 7.02 | 16.84 | 11.93 | 4.91 | |
D | 1171A | LO Fragilariopsis barronii | 1.4 | 2H-CC | 3H-CC | 16.10 | 24.76 | 20.43 | 4.33 | 16.84 | 25.32 | 21.08 | 4.24 | |
D | 1171A | LO Thalassiosira tetraoestrupii var. reimeri | 1.5 | 2H-CC | 3H-CC | 16.10 | 24.76 | 20.43 | 4.33 | 16.84 | 25.32 | 21.08 | 4.24 | |
D | 1171A | LO Proboscia barboi | 1.8 | 2H-CC | 3H-CC | 16.10 | 24.76 | 20.43 | 4.33 | 16.84 | 25.32 | 21.08 | 4.24 | |
D | 1171A | LO Thalassiosira complicata | 2.5 | 3H-CC | 4H-CC | 24.76 | 35.78 | 30.27 | 5.51 | 25.32 | 36.96 | 31.14 | 5.82 | |
D | 1171A | LO Thalassiosira inura | 2.5 | 3H-CC | 4H-CC | 24.76 | 35.78 | 30.27 | 5.51 | 25.32 | 36.96 | 31.14 | 5.82 | |
D | 1171A | LO Thalassiosira insigna | 2.6 | 3H-CC | 4H-CC | 24.76 | 35.78 | 30.27 | 5.51 | 25.32 | 36.96 | 31.14 | 5.82 | |
D | 1171A | LO Fragilariopsis weaveri | 2.7 | 3H-CC | 4H-CC | 24.76 | 35.78 | 30.27 | 5.51 | 25.32 | 36.96 | 31.14 | 5.82 | |
D | 1171A | FO Fragilariopsis weaveri | 3.4 | 6H-CC | 7H-CC | 55.17 | 64.20 | 59.69 | 4.52 | 47.26 | 57.43 | 52.35 | 5.09 | |
R | 1171A | FO Pseudocubus vema | 4.5 | 4H-CC | 5H-CC | 35.78 | 45.36 | 40.57 | 4.79 | 36.96 | 47.26 | 42.11 | 5.15 | |
N | 1171A | LO Amaurolithus delicatus | 4.6 | 5H-CC | 6H-CC | 45.36 | 55.17 | 50.27 | 4.91 | 47.26 | 57.43 | 52.35 | 5.09 | |
R | 1171A | LCO Stichocorys peregrina | 5.0 | 4H-CC | 5H-CC | 35.78 | 45.36 | 40.57 | 4.79 | 36.96 | 47.26 | 42.11 | 5.15 | |
R | 1171A | LO Lychnocanoma grande | 5.0 | 5H-CC | 6H-CC | 45.36 | 55.17 | 50.27 | 4.91 | 47.26 | 57.43 | 52.35 | 5.09 | |
R | 1171A | LO Amphymenium challengerae | 6.1 | 6H-CC | 7H-CC | 55.17 | 64.20 | 59.69 | 4.52 | 57.43 | 67.76 | 62.60 | 5.17 | |
R | 1171A | FO Amphymenium challengerae | 6.6 | 7H-CC | 8H-CC | 64.20 | 73.05 | 68.63 | 4.43 | 67.76 | 77.75 | 72.76 | 5.00 | |
D | 1171A | FO Fragilariopsis reinholdii | 8.1 | 8H-CC | 9H-CC | 73.05 | 82.40 | 77.73 | 4.68 | 77.75 | 87.84 | 82.80 | 5.05 | |
D | 1171A | FO Actinocyclus ingens var. ovalis | 8.7 | 8H-CC | 9H-CC | 73.05 | 82.40 | 77.73 | 4.68 | 77.75 | 87.84 | 82.80 | 5.05 | |
D | 1171A | LO Denticulopsis dimorpha | 10.7 | 10H-CC | 11H-CC | 92.66 | 102.49 | 97.58 | 4.92 | 98.54 | 109.25 | 103.90 | 5.35 | |
D | 1171A | FO Actinocyclus fryxellae | 11.1 | 13X-CC | 14X-CC | 113.66 | 120.53 | 117.10 | 3.44 | 120.40 | 127.27 | 123.84 | 3.43 | |
R | 1171A | LAO Cyrtocapsella japonica | 11.6 | 11H-CC | 12H-CC | 102.49 | 110.62 | 106.56 | 4.07 | 109.25 | 117.36 | 113.31 | 4.05 | |
N | 1171C | LO Pseudoemiliania lacunosa | 0.5 | 1H-0 | 1H-CC | 0.00 | 9.65 | 4.83 | 4.83 | 0.44 | 10.096 | 5.27 | 4.83 | |
N | 1171C | LO Calcidiscus macintyrei | 1.7 | 2H-CC | 3H-CC | 19.24 | 28.53 | 23.89 | 4.65 | 19.98 | 28.58 | 24.28 | 4.30 | |
R | 1171C | LO Pseudocubus vema | 2.4 | 2H-CC | 3H-CC | 19.24 | 28.56 | 23.90 | 4.66 | 19.98 | 28.58 | 24.28 | 4.30 | |
P | 1171C | FO Globorotalia inflata | 3.2 | 3H-CC | 4H-CC | 28.56 | 37.80 | 33.18 | 4.62 | 28.58 | 38.14 | 33.36 | 4.78 | |
N | 1171C | LO Reticulofenestra pseudoumbilica | 3.8 | 4H-CC | 5H-CC | 37.80 | 47.86 | 42.83 | 5.03 | 38.14 | 49.46 | 43.80 | 5.66 | |
N | 1171C | LO Triquetrorhabdulus rugosus | 5.3 | 6H-CC | 7H-CC | 57.45 | 67.13 | 62.29 | 4.84 | 59.83 | 70.51 | 65.17 | 5.34 | |
P | 1171C | FO Globorotalia puncticulata | 5.3 | 6H-CC | 7H-CC | 57.45 | 67.13 | 62.29 | 4.84 | 59.83 | 70.51 | 65.17 | 5.34 | |
D | 1171C | LO Actinocyclus ingens var. ovalis | 6.3 | 6H-CC | 7H-CC | 57.45 | 67.13 | 62.29 | 4.84 | 59.83 | 70.51 | 65.17 | 5.34 | |
P | 1171C | FO Globorotalia conomiozea | 6.9 | 6H-CC | 7H-CC | 57.45 | 67.13 | 62.29 | 4.84 | 59.83 | 70.51 | 65.17 | 5.34 | |
P | 1171C | LO Paragloborotalia nympha | 10.1 | 7H-CC | 8H-CC | 67.13 | 75.33 | 71.23 | 4.10 | 70.51 | 80.71 | 75.61 | 5.10 | |
N | 1171C | LO Coccolithus miopelagicus | 10.9 | 13X-CC | 14X-CC | 115.72 | 123.49 | 119.61 | 3.89 | 122.40 | 130.17 | 126.29 | 3.88 | |
P | 1171C | LO Paragloborotalia mayeri | 11.4 | 10H-CC | 11H-CC | 94.40 | 104.12 | 99.26 | 4.86 | 100.62 | 111.06 | 105.84 | 5.22 | |
D | 1171C | LO Denticulopsis praedimorpha | 11.5 | 13X-CC | 14X-CC | 115.72 | 123.49 | 119.61 | 3.89 | 122.40 | 130.17 | 126.29 | 3.88 | |
D | 1171C | LO Nitzschia denticuloides | 11.7 | 13X-CC | 14X-CC | 115.72 | 123.49 | 119.61 | 3.89 | 122.40 | 130.17 | 126.29 | 3.88 | |
N | 1171C | LO Cyclocargolithus floridanus | 11.9 | 17X-CC | 18X-CC | 150.18 | 162.93 | 156.56 | 6.38 | 156.86 | 169.61 | 163.24 | 6.38 | |
P | 1171C | FO Paragloborotalia mayeri | 12.1 | 16X-CC | 17X-CC | 139.66 | 150.18 | 144.92 | 5.26 | 146.34 | 156.86 | 151.60 | 5.26 | |
D | 1171C | LO Proboscia barboi | 12.5 | 14X-CC | 15X-CC | 123.49 | 134.45 | 128.97 | 5.48 | 130.17 | 141.13 | 135.65 | 5.48 | |
R | 1171C | LAO Cyrtocapsella tetrapera | 12.5 | 14X-CC | 15X-CC | 123.49 | 134.45 | 128.97 | 5.48 | 130.17 | 141.13 | 135.65 | 5.48 | |
D | 1171C | LO Actinocyclus ingens var. nodus | 12.7 | 14X-CC | 15X-CC | 123.49 | 134.45 | 128.97 | 5.48 | 130.17 | 141.13 | 135.65 | 5.48 | |
D | 1171C | FO Actinocyclus ingens var. nodus | 14.4 | 21X-CC | 22X-CC | 190.11 | 198.93 | 194.52 | 4.41 | 196.79 | 205.61 | 201.20 | 4.41 | |
D | 1171C | LO Cavitatus (Synedra) jouseanus | 14.6 | 22X-CC | 23X-CC | 198.93 | 210.12 | 204.53 | 5.60 | 205.61 | 216.8 | 211.21 | 5.60 | |
P | 1171C | FO Orbulina suturalis | 15.1 | 20X-CC | 21X-CC | 181.10 | 190.11 | 185.61 | 4.51 | 187.78 | 196.79 | 192.29 | 4.51 | |
R | 1171C | FO Lychnocanoma nipponica | 15.7 | 19X-CC | 20X-CC | 172.76 | 181.10 | 176.93 | 4.17 | 179.44 | 187.78 | 183.61 | 4.17 | |
P | 1171C | FO Praeorbulina curva | 16.3 | 21X-CC | 22X-CC | 190.11 | 198.93 | 194.52 | 4.41 | 196.79 | 205.61 | 201.20 | 4.41 | |
R | 1171C | LO Cenosphaera coronata | 16.7 | 22X-CC | 23X-CC | 198.93 | 210.12 | 204.53 | 5.60 | 205.61 | 216.8 | 211.21 | 5.60 | |
N | 1171C | FO Calcidiscus premacintyrei | 17.4 | 22X-CC | 23X-CC | 198.93 | 210.12 | 204.53 | 5.60 | 205.61 | 216.8 | 211.21 | 5.60 | |
P | 1171C | FO Globigerinoides trilobus | 18.8 | 22X-CC | 23X-CC | 198.93 | 210.12 | 204.53 | 5.60 | 205.61 | 216.80 | 211.21 | 5.60 | |
P | 1171C | FO Globoturborotalita connecta | 20.9 | 23X-CC | 24X-CC | 210.12 | 219.74 | 214.93 | 4.81 | 216.80 | 226.42 | 221.61 | 4.81 | |
D | 1171C | LO Rocella gelida | 22.5 | 25X-CC | 26X-CC | 228.48 | 237.56 | 233.02 | 4.54 | 235.16 | 244.24 | 239.70 | 4.54 | |
P | 1171C | FO Globoturborotalita woodi | 22.6 | 25X-CC | 26X-CC | 228.48 | 237.56 | 233.02 | 4.54 | 235.16 | 244.24 | 239.70 | 4.54 | |
N | 1171C | LO Reticulofenestra bisecta | 23.9 | 28X-CC | 29X-CC | 253.79 | 264.83 | 259.31 | 5.52 | 260.47 | 271.51 | 265.99 | 5.52 | |
D | 1171C | FO Rocella gelida | 26.5 | 29X-CC | 30X-CC | 264.83 | 272.87 | 268.85 | 4.02 | 271.51 | 279.55 | 275.53 | 4.02 | |
P | 1171C | LO Subbotina angiporoides | 30.0 | 29X-CC | 30X-CC | 264.83 | 272.87 | 268.85 | 4.02 | 271.51 | 279.55 | 275.53 | 4.02 | |
D | 1171C | FO Rocella vigilans (small) | 30.2 | 30X-CC | 31X-CC | 272.87 | 274.43 | 273.65 | 0.78 | 279.55 | 281.11 | 280.33 | 0.78 | |
D | 1171C | FO Cavitatus (Synedra) jouseanus | 30.6 | 30X-CC | 31X-CC | 272.87 | 274.43 | 273.65 | 0.78 | 279.55 | 281.11 | 280.33 | 0.78 | |
C | 1171C | LO Areosphaeridium diktyoplokum | 33.3 | 30X-CC | 31X-CC | 272.87 | 274.43 | 273.65 | 0.78 | 279.55 | 281.11 | 280.33 | 0.78 | |
R | 1171D | FO Cyrtocapsella tetrapera | 23.6 | 2R-CC | 3R-CC | 260.68 | 271.34 | 266.01 | 5.33 | 268.80 | 281.10 | 274.95 | 6.15 | |
N | 1171D | LO Chiasmolithus altus | 26.0 | 3R-3, 2 | 3R-3, 20 | 269.62 | 269.80 | 269.71 | 0.09 | 279.40 | 279.60 | 279.50 | 0.10 | |
D | 1171D | FO Rocella gelida | 26.5 | 2R-CC | 3R-CC | 260.68 | 271.34 | 266.01 | 5.33 | 268.80 | 281.10 | 274.95 | 6.15 | |
D | 1171D | FO Rocella vigilans (small) | 30.24 | 2R-CC | 3R-CC | 260.68 | 271.34 | 266.01 | 5.33 | 268.80 | 281.10 | 274.95 | 6.15 | |
D | 1171D | FO Cavitatus (Synedra) jouseanus | 30.62 | 2R-CC | 3R-CC | 260.68 | 271.34 | 266.01 | 5.33 | 268.80 | 281.10 | 274.95 | 6.15 | |
N | 1171D | LO Isthmolithus recurvus | 31.80 | 3R-3, 20 | 3R-CC | 269.80 | 271.39 | 270.60 | 0.80 | 279.60 | 281.10 | 280.40 | 0.80 | |
N | 1171D | LO Reticulofenestra umbilica | 32.3 | 3R-3, 20 | 3R-CC | 271.30 | 280.60 | 276.00 | 4.60 | 279.60 | 281.10 | 280.40 | 0.80 | |
N | 1171D | LO Reticulofenestra oamaruensis | 33.70 | 3R-3, 20 | 3R-CC | 268.80 | 271.36 | 270.10 | 1.30 | 279.60 | 281.10 | 280.40 | 0.80 | |
N | 1171D | LO Reticulofenestra reticulata | 35.0 | 4R-CC | 5R-CC | 280.60 | 287.50 | 284.10 | 3.50 | 290.40 | 297.30 | 293.80 | 3.50 | |
N | 1171D | FO Isthmolithus recurvus | 36.0 | 4R-CC | 5R-CC | 280.60 | 287.50 | 284.10 | 3.40 | 290.40 | 297.30 | 293.90 | 3.40 | |
C | 1171D | FCO Alterbidinium distinctum | 37.0 | 4R-CC | 5R-CC | 280.59 | 287.53 | 284.06 | 3.47 | 290.37 | 297.31 | 293.84 | 3.47 | |
C | 1171D | LO Cerebrocysta bartonensis | 38.6 | 6R-CC | 7R-CC | 295.26 | 302.30 | 298.78 | 3.52 | 305.04 | 312.08 | 308.56 | 3.52 | |
C | 1171D | LAO Enneadocysta partridgei | 39.5 | 15R-CC | 17R-CC | 374.35 | 398.40 | 386.38 | 12.03 | 384.13 | 408.18 | 396.16 | 12.03 | |
N | 1171D | LO Chiasmolithus solitus | 40.4 | 6R-CC | 7R-1, 25 | 300.70 | 300.30 | 295.30 | 5.00 | 300.70 | 310.40 | 305.50 | 4.90 | |
N | 1171D | FO Reticulofenestra reticulata | 42.0 | 6R-CC | 7R-1, 25 | 300.70 | 300.30 | 295.30 | 5.00 | 300.70 | 310.40 | 305.50 | 4.90 | |
C | 1171D | FO Cerebrocysta bartonensis | 43.0 | 29R-CC | 35R-CC | 516.79 | 573.86 | 545.33 | 28.54 | 526.57 | 583.64 | 555.11 | 28.54 | |
C | 1171D | FAO Enneadocysta partridgei | 43.0 | 29R-CC | 35R-CC | 516.79 | 573.86 | 545.33 | 28.54 | 526.57 | 583.64 | 555.11 | 28.54 | |
N | 1171D | FO Reticulofenestra umbilica | 43.7 | 25R-CC | 26R-CC | 476.80 | 488.00 | 482.40 | 5.60 | 486.60 | 497.80 | 492.20 | 5.60 | |
C | 1171D | LO Membranophoridium perforatum | 46.3 | 29R-CC | 35R-CC | 516.79 | 573.86 | 545.33 | 28.54 | 526.57 | 583.64 | 555.11 | 28.54 | |
C | 1171D | LO Hystrichokolpoma spinosa | 47.0 | 35R-CC | 40R-CC | 573.86 | 622.70 | 598.28 | 24.42 | 583.64 | 632.48 | 608.06 | 24.42 | |
C | 1171D | LO Charlesdowniea edwardsii | 48.0 | 40R-CC | 44R-CC | 622.70 | 660.71 | 641.71 | 19.01 | 632.48 | 670.49 | 651.49 | 19.01 | |
C | 1171D | LO Charlesdowniea coleothrypta | 48.5 | 40R-CC | 44R-CC | 622.70 | 660.71 | 641.71 | 19.01 | 632.48 | 670.49 | 651.49 | 19.01 | |
C | 1171D | FO Pyxidinopsis waipawaense | 49.5 | 44R-CC | 50R-CC | 660.71 | 718.48 | 689.60 | 28.89 | 670.49 | 728.26 | 699.38 | 28.89 | |
C | 1171D | FO Charlesdowniea coleothrypta | 50.3 | 44R-CC | 50R-CC | 660.71 | 718.48 | 689.60 | 28.89 | 670.49 | 728.26 | 699.38 | 28.89 | |
C | 1171D | FO Charlesdowniea edwardsii | 50.3 | 44R-CC | 50R-CC | 660.71 | 718.48 | 689.60 | 28.89 | 670.49 | 728.26 | 699.38 | 28.89 | |
C | 1171D | FO Areosphaeridium diktyoplokum | 51.7 | 50R-CC | 56R-CC | 718.48 | 771.40 | 744.94 | 26.46 | 728.26 | 781.18 | 754.72 | 26.46 | |
C | 1171D | FO Membranophoridium perforatum | 53.0 | 50R-CC | 56R-CC | 718.48 | 771.40 | 744.94 | 26.46 | 728.26 | 781.18 | 754.72 | 26.46 | |
C | 1171D | LO Dracodinium waipawaense | 53.2 | 60R-CC | 70R-CC | 814.60 | 908.07 | 861.34 | 46.74 | 824.38 | 917.85 | 871.12 | 46.74 | |
C | 1171D | FO Dracodinium waipawaense | 53.5 | 70R-CC | 71R-CC | 908.07 | 920.20 | 914.14 | 6.07 | 917.85 | 928.90 | 923.38 | 5.52 | |
C | 1171D | FO Hystrichokolpoma spinosa | 53.5 | 70R-CC | 71R-CC | 908.07 | 920.20 | 914.14 | 6.07 | 917.85 | 928.90 | 923.38 | 5.52 | |
C | 1171D | FO Deflandrea phosphoriticacpx | 55.0 | 72R-CC | 73R-CC | 920.20 | 939.51 | 929.86 | 9.66 | 939.07 | 949.29 | 944.18 | 5.11 |
Notes: Mean depth is the midpoint between the top and bottom sample of the event interval. D = diatom, R = radiolarian, N = nannofossil, P = planktonic foraminifer, C = dinocyst. LO = last occurrence, FO = first occurrence, LCO = last consistent occurrence, FCO = first consistent occurrence, LAO = last abundant occurrence, FAO = first abundant occurrence. This table is also available in ASCII format.