Table 2. Microfossil datums at Hole 1076A.
Fossil group
Event
Age
(Ma)
Zone (base)
Core, section, interval (cm)
Depth (mbsf)
A
B
Top
Bottom
Top
Bottom
Mean





176-1076A- 176-1076A-


N FO Emiliania huxleyi acme 0.09 NN21b
3H-1, 80 3H-4, 60 15.10 19.40 17.3
N FO Emiliania huxleyi 0.26 NN21a CN15 8H-5, 30 8H-CC 68.15 71.84 70.0
N LO Gephyrocapsa caribbeanica acme 0.26 NN21a CN15 8H-5, 30 8H-CC 68.15 71.84 70.0
N LO Pseudoemiliania lacunosa 0.46 NN20 CN14b 9H-CC 10H-5, 34 81.51 87.04 84.3
R LO Axoprunum angelinum 0.46

8H-CC 9H-CC 71.84 81.51 76.7
N LO Small Gephyrocapsa acme (Weaver, 1993) 0.60*

10H-CC 11H-3, 14 90.89 93.44 92.2
S LO Bachmannocena quadrangula 0.80

16H-CC 17H-CC 147.90 157.86 152.9
N LO Reticulofenestra asanoi 0.83

12H-2, 10 12H-4, 10 101.40 104.40 102.9
N LO Small Gephyrocapsa acme (Gartner, 1977) 0.96
CN14a 13H-3, 50 13H-CC 111.70 119.85 115.8

Paraconformity







N LO Small Gephyrocapsa acme (Gartner, 1977) 0.96
CN14a 14H-6, 3 14H-CC 126.30 129.12 127.7
N LO Helicosphaera sellii 1.25

20H-CC 21H-7, 10 185.98 196.34 191.2

Notes: Fossil group: N = calcareous nannofossils; S = silicoflagellates; and R = radiolarians. FO = first occurrence and LO = last occurrence. * = lower isotopic Stage 15 (Weaver, 1993); age interpolated from Imbrie et al. (1984). Zonal codes refer to the standard calcareous nannofossil zonations of (A) Martini (1971) and (B) Okada and Bukry (1980).