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Table T3. Calcareous nannofossil datums, Site U1332. (See table note.)
|
Core, section, interval (cm)
|
Marker species
|
Age
(Ma)
|
Depth CSF (m)
|
|
Top
|
Bottom
|
Top
|
Bottom
|
Midpoint
|
±
|
|
320-U1332A-
|
320-U1332A-
|
|
3H-4, 100
|
3H-5, 100
|
T Triquetrorhabdulus carinatus
|
18.28
|
18.90
|
20.40
|
19.65
|
0.75
|
|
3H-7, 60
|
3H-CC
|
T Sphenolithus delphix
|
23.1
|
23.00
|
23.51
|
23.26
|
0.26
|
|
3H-CC
|
4H-2, 60
|
B Sphenolithus delphix
|
23.2
|
23.51
|
23.50
|
23.51
|
0.01
|
|
4H-2, 60
|
4H-3, 60
|
X T. longus/T. carinatus
|
24.7
|
25.00
|
26.50
|
25.75
|
0.75
|
|
4H-2, 60
|
4H-3, 60
|
Tc C. abisectus
|
24.7
|
25.00
|
26.50
|
25.75
|
0.75
|
|
4H-CC
|
5H-1, 80
|
T Sphenolithus predistentus
|
26.9
|
32.95
|
33.20
|
33.08
|
0.13
|
|
5H-3, 80
|
5H-4, 80
|
T Sphenolithus pseudoradians
|
28.8
|
36.20
|
37.70
|
36.95
|
0.75
|
|
6H-5, 70
|
6H-6, 70
|
B Sphenolithus distentus
|
30.0
|
48.60
|
50.10
|
49.35
|
0.75
|
|
7H-6, 80
|
7H-7, 80
|
T Reticulofenestra umbilicus
|
32.0
|
59.69
|
61.18
|
60.44
|
0.75
|
|
8H-4, 50
|
8H-5, 50
|
T Coccolithus formosus
|
32.9
|
65.90
|
67.40
|
66.65
|
0.75
|
|
9H-4, 110
|
10H-3, 80
|
T Discoaster saipanensis
|
34.4
|
76.00
|
83.70
|
79.85
|
3.85
|
|
11H-5, 70
|
11H-6, 70
|
T Chiasmolithus grandis
|
37.1
|
96.10
|
97.60
|
96.85
|
0.75
|
|
11H-CC
|
12H-2, 100
|
B Dictyococcites bisectus
|
38.0
|
98.52
|
101.40
|
99.96
|
1.44
|
|
12H-2, 100
|
13H-1, 140
|
T Chiasmolithus solitus
|
40.4
|
101.40
|
109.80
|
105.60
|
4.20
|
|
14H-5, 40
|
14H-6, 35
|
T Nannotetrina
|
42.3
|
124.30
|
125.74
|
125.02
|
0.72
|
|
14H-CC
|
15X-1, 113
|
B Reticulofenestra umbilicus >14 µm
|
42.5
|
126.28
|
127.03
|
126.66
|
0.38
|
|
15X-2, 137
|
15X-3, 66
|
T Nannotetrina fulgens
|
43.4
|
128.77
|
129.56
|
129.17
|
0.39
|
|
16X-2, 39
|
16X-CC
|
B Nannotetrina fulgens
|
46.8
|
137.39
|
138.20
|
137.80
|
0.41
|
|
320-U1332B-
|
320-U1332B-
|
|
17X-CC
|
18X-2, 48
|
T Discoaster lodoensis
|
48.4
|
135.06
|
145.88
|
140.47
|
5.41
|
Note: T = top, B = bottom, X = abundance crossover, Tc = top common.
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