Previous |
Close
| Next
Table T5. Calcareous nannofossil datums, Site U1331. (See table note.)
|
Core, section, interval (cm)
|
Marker species |
Age
(Ma) |
Depth CSF (m) |
|
Top
|
Bottom |
Top |
Bottom |
Midpoint |
± |
|
320-U1331A-
|
320-U1331A- |
|
2H-4, 70
|
2H-5, 70 |
B Sphenolithus distentus |
30.0 |
10.40 |
11.90 |
11.15 |
0.75 |
|
3H-5, 110
|
3H-6, 110 |
T Reticulofenestra umbilicus |
32.0 |
21.80 |
23.30 |
22.55 |
0.75 |
|
3H-6, 110
|
3H-CC |
T Coccolithus formosus |
32.9 |
23.30 |
24.34 |
23.82 |
0.52 |
|
4H-1, 110
|
4H-7, 10 |
T Discoaster saipanensis |
34.4 |
25.30 |
33.30 |
29.30 |
4.00 |
|
6H-5, 70
|
6H-7, 9 |
T Chiasmolithus grandis |
37.1 |
49.90 |
51.79 |
50.85 |
0.95 |
|
6H-CC
|
7H-1, 30 |
B Dictyococcites bisectus |
38.0 |
52.60 |
53.00 |
52.80 |
0.20 |
|
7H-2, 30
|
8H-6, 50 |
T Chiasmolithus solitus |
40.4 |
54.50 |
70.20 |
62.35 |
7.85 |
|
7H-2, 30
|
8H-6, 50 |
T Discoaster bifax |
— |
54.50 |
70.20 |
62.35 |
7.85 |
|
11H-4, 30
|
11H-5, 30 |
B Reticulofenestra umbilicus >14 µm |
42.5 |
94.68 |
96.18 |
95.43 |
0.75 |
|
13H-2, 5
|
13H-5, 70 |
T Nannotetrina fulgens |
43.4 |
111.25 |
116.40 |
113.83 |
2.58 |
|
13H-2, 5
|
13H-5, 70 |
B Discoaster bifax |
— |
111.25 |
116.40 |
113.83 |
2.58 |
|
320-U1331C-
|
320-U1331C-
|
|
17H-3, 100
|
17H-3, 109 |
T Tribrachiatus orthostylus |
50.7 |
188.00 |
188.09 |
188.05 |
0.05 |
Note: B = bottom, T = top.
Previous |
Close
|
Next | Top of page