Table T13. Biostratigraphic events, Site 1170.
Group | Hole | Bioevent | Age (Ma) |
Interval (cm) | Mean depth (mbsf) |
Error
bar (m) |
|
---|---|---|---|---|---|---|---|
Top
|
Bottom
|
||||||
N | 1170A | FO Emiliania huxleyi | 0.26 | Top of core | 1H-CC | 0.82 | 0.82 |
R | 1170A | LO Stylatractus universus | 0.45 | 1H-CC | 2H-CC | 6.66 | 10.03 |
N | 1170A | LO Pseudoemiliania lacunosa | 0.46 | 1H-CC | 2H-CC | 6.66 | 5.02 |
D | 1170A | LO Actinocyclus ingens | 0.64 | 2H-CC | 3H -CC | 16.21 | 9.08 |
D | 1170A | LO Fragilariopsis barronii | 1.44 | 4H-CC | 5H -CC | 34.24 | 10.33 |
N | 1170A | LO Calcidiscus macintyrei | 1.67 | 4H-CC | 5H-CC | 34.24 | 5.17 |
D | 1170A | LO Proboscia baboi | 1.80 | 4H-CC | 5H-CC | 34.24 | 10.33 |
P | 1170A | FO Globorotalia truncatulinoides | 1.96 | 3H-CC | 4H-CC | 24.91 | 8.32 |
R | 1170A | LO Pseudocubus vema | 2.40 | 5H-CC | 6H-CC | 44.22 | 9.63 |
D | 1170A | LO Thalassiosira complicata | 2.50 | 7H-CC | 8H-CC | 63.61 | 10.72 |
D | 1170A | LO Thalassiosira inura | 2.50 | 7H-CC | 8H-CC | 63.61 | 10.72 |
D | 1170A | LO Fragilariopsis weaveri | 2.65 | 7H-CC | 8H-CC | 63.61 | 10.72 |
C | 1170A | LO Invertocysta tabulata | 2.65 | 1H-CC | 4H-CC | 15.36 | 13.72 |
P | 1170A | FO Globorotalia inflata | 3.20 | 7H-CC | 8H-CC | 63.16 | 9.25 |
N | 1170A | LO Reticulofenestra pseudoumbilica | 3.75 | 6H-CC | 7H-CC | 53.64 | 4.61 |
D | 1170A | FO Thalassiosira complicata | 4.44 | 11H-CC | 12H-CC | 101.67 | 9.57 |
R | 1170A | FO Pseudocubus vema | 4.50 | 6H-CC | 7H-CC | 53.64 | 9.22 |
P | 1170A | LO Globorotalia pliozea | 4.60 | 14H-CC | 15H-CC | 128.84 | 10.21 |
D | 1170A | FO Thalassiosira inura | 4.92 | 11H-CC | 12H-CC | 101.67 | 9.57 |
R | 1170A | LO Lychnocanoma grande | 5.00 | 9H-CC | 10H-CC | 82.67 | 9.62 |
N | 1170A | LO Ceratolithus acutus | 5.05 | 12H-CC | 13H-CC | 110.85 | 4.40 |
P | 1170A | FO Globorotalia puncticulata | 5.30 | 16H-CC | 17H-CC | 148.61 | 9.72 |
N | 1170A | FO Ceratolithus acutus | 5.37 | 12H-CC | 13H-CC | 110.85 | 4.40 |
R | 1170A | LCO Stichocorys delmontensis | 6.04 | 13H-CC | 14H-CC | 119.49 | 8.49 |
R | 1170A | LO Amphymenium challengerae | 6.10 | 17H-CC | 18H-CC | 158.64 | 10.13 |
D | 1170A | LO Actinocyclus ingens var. ovalis | 6.27 | 16H-CC | 17H-CC | 148.66 | 9.82 |
R | 1170A | FO Amphymenium challengerae | 6.60 | 18H-CC | 19H-CC | 165.42 | 3.43 |
P | 1170A | FO Globorotalia conomiozea | 6.90 | 18H-CC | 19X-CC | 165.42 | 3.43 |
P | 1170A | LO Paragloborotalia continuosa | 8.00 | 18H-CC | 19X-CC | 165.42 | 3.43 |
P | 1170A | LO Paragloborotalia nympha | 10.10 | 19X-CC | 20X-CC | 170.84 | 7.41 |
D | 1170A | LO Denticulopsis dimorpha | 10.70 | 22X-CC | 23X-CC | 196.57 | 9.04 |
P | 1170A | LO Paragloborotalia mayeri | 11.40 | 21X-CC | 22X-CC | 186.48 | 11.14 |
R | 1170A | FO Dictyophimus splendeus | 11.80 | 19X-CC | 20X-CC | 170.84 | 7.41 |
N | 1170A | LO Cyclicargolithus floridanus | 11.90 | 27X-CC | 28X-CC | 245.04 | 5.66 |
P | 1170A | FO Paragloborotalia mayeri | 12.10 | 29X-CC | 30X-CC | 264.83 | 10.78 |
D | 1170A | FO Denticulopsis dimorpha | 12.20 | 27X-CC | 28X-CC | 245.04 | 11.32 |
R | 1170A | LAO Cyrtocapsella tetrapera | 12.50 | 27X-CC | 28X-CC | 245.04 | 11.32 |
D | 1170A | LO Actinocyclus ingens var. nodus | 12.71 | 27X-CC | 28X-CC | 245.04 | 11.32 |
D | 1170A | FO Actinocyclus ingens var. nodus | 14.38 | 32X-CC | 33X-CC | 295.25 | 8.71 |
D | 1170A | LO Cavitatus (Synedra) jouseanus | 14.61 | 32X-CC | 33X-CC | 295.25 | 8.71 |
D | 1170A | LO Denticulopsis maccollumii | 14.70 | 33X-CC | 34X-CC | 305.00 | 10.79 |
N | 1170A | LO Helicosphaera ampliaperta | 15.60 | 29X-CC | 30X-CC | 264.83 | 5.39 |
R | 1170A | LO Lychnocanoma nipponica nipponica | 15.70 | 32X-CC | 33X-CC | 295.25 | 8.71 |
P | 1170A | FO Praeorbulina curva | 16.30 | 30X-CC | 31X-CC | 276.12 | 11.24 |
R | 1170A | LO Cenosphaera coronata | 16.70 | 35X-CC | 36X-CC | 322.98 | 9.09 |
N | 1170A | FO Calcidiscus premacintyrei | 17.40 | 34X-CC | 35X-CC | 314.41 | 4.02 |
P | 1170A | FO Globigerinoides trilobus | 18.80 | 36X-CC | 37X-CC | 333.01 | 11.58 |
P | 1170A | FO Globoturborotalita connecta | 20.90 | 37X-CC | 38X-CC | 342.99 | 8.38 |
D | 1170A | LO Azpeitia gombosii | 21.10 | 41X-CC | 42X-CC | 381.85 | 10.64 |
P | 1170A | FO Globoturborotalita woodi | 22.60 | 38X-CC | 39X-CC | 351.86 | 9.35 |
P | 1170A | FO Globoquadrina dehiscens | 23.20 | 41X-CC | 42X-CC | 381.85 | 10.64 |
R | 1170A | FO Cyrtocapsella tetrapera | 23.60 | 41X-CC | 42X-CC | 381.85 | 10.64 |
N | 1170A | LO Reticulofenestra bisecta | 23.90 | 41X-CC | 42X-CC | 381.85 | 5.32 |
N | 1170A | LO Chiasmolithus altus | 26.10 | 43X-CC | 44X-CC | 401.23 | 4.60 |
D | 1170A | LO Coscinodiscus lewisianus var. levis | 28.20 | 42X-CC | 43X-CC | 391.90 | 9.46 |
P | 1170A | FO Chiloguembelina cubensis | 28.50 | 42X-CC | 43X-CC | 391.90 | 9.46 |
D | 1170A | FO Coscinodiscus lewisianus var. levis | 28.50 | 43X-CC | 44X-CC | 401.23 | 9.20 |
D | 1170D | FO Coscinodiscus lewisianus var. levis | 28.50 | 1R - CC | 2R - CC | 432.39 | 5.12 |
D | 1170A | LO Rocella vigilans (small) | 28.80 | 43X-CC | 44X-CC | 401.23 | 9.20 |
P | 1170A | LO Subbotina angiporoides | 30.00 | 44X-CC | 45X-CC | 407.94 | 4.22 |
D | 1170A | FO Rocella vigilans (small) | 30.24 | 48X-CC | 49X-CC | 442.76 | 14.99 |
D | 1170D | FO Cavitatus (Synedra) jouseanus | 30.62 | 4R-1, 120 | 4R - CC | 454.43 | 0.53 |
N | 1170D | FO Cyclicargolithus abisectus | 31.20 | 4R-CC | 5R-CC | 459.60 | 4.61 |
N | 1170D | LO Reticulofenestra reticulata | 35.00 | 6R-CC | 8R-5, 50 | 479.54 | 6.82 |
C | 1170D | FCO Alterbidinium distinctum | 37.00 | 8R-CC | 9R-CC | 493.01 | 9.03 |
C | 1170D | LO Cerebryocysta bartonensis | 38.60 | 11R-CC | 12R-CC | 521.30 | 2.99 |
C | 1170D | LAO Enneadocysta partridgei | 39.50 | 16R-CC | 17R-CC | 581.44 | 3.67 |
N | 1170D | LO Chiasmolithus solitus | 40.40 | 12R-CC | 13R-CC | 529.71 | 5.12 |
N | 1170D | LAO Reticulofenestra reticulata | 42.00 | 12R-CC | 13R-CC | 529.71 | 5.12 |
C | 1170D | FAO Enneadocysta partridgei | 43.00 | 36R-CC | 38R-CC | 770.13 | 9.57 |
N | 1170D | FO Reticulofenestra umbilica | 43.70 | 37R-CC | 38R-CC | 774.21 | 5.48 |
Notes: See individual microfossil sections in this chapter for top and bottom samples of event intervals. Mean depth is the midpoint between the top and bottom sample of the event interval. Group: N = nannofossil, R = radiolarian, D = diatom, P = planktonic foraminifer, C = dinocyst. FO = first occurrence, LO = last occurrence. LAO = last abundant occurrence, FAO = first abundant occurrence. This table is also available in ASCII format.