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Table T4. Radiolarian datums, Site U1336. (See table notes.)
Geologic age
|
Zone |
Marker species |
Age (Ma) |
Core, section, interval (cm) |
Depth CSF (m) |
Top
|
Bottom |
Top |
Bottom |
Midpoint |
± |
middle Miocene
|
RN6 |
|
|
320-U1336A- |
320-U1336A- |
|
B D. petterssoni |
12.11 |
1H-4, 104–106 |
1H-CC |
5.54 |
8.19 |
6.87 |
1.33 |
RN5
|
B C. japonica |
12.41 |
1H-4, 104–106 |
1H-CC |
5.54 |
8.19 |
6.87 |
1.33 |
B L. neotera
|
12.95 |
1H-CC |
2H-2, 105–107 |
8.19 |
10.55 |
9.37 |
1.18 |
T C. robusta
|
13.348 |
2H-CC |
3H-2, 105–107 |
17.68 |
20.05 |
18.87 |
1.19 |
T S. armata
|
13.5 |
2H-CC |
3H-2, 105–107 |
17.68 |
20.05 |
18.87 |
1.19 |
T A. octopylus
|
13.88 |
3H-2, 105–107 |
3H-4, 105–107 |
20.05 |
23.05 |
21.55 |
1.50 |
T C. costata
|
14.229 |
3H-4, 105–107 |
3H-CC |
23.05 |
27.47 |
25.26 |
2.21 |
T D. dentata
|
14.666 |
4H-2, 105–107 |
4H-4, 105–107 |
27.47 |
32.55 |
30.01 |
2.54 |
T L. stauropora
|
14.826 |
4H-2, 105–107 |
4H-4, 105–107 |
27.47 |
32.55 |
30.01 |
2.54 |
|
D. dentata > D. alata |
14.78 |
4H-2, 105–107 |
4H-4, 105–107 |
27.47 |
32.55 |
30.01 |
2.54 |
RN4
|
B D. alata |
15.08 |
4H-CC |
5H-2, 105–107 |
36.20 |
39.05 |
37.63 |
1.43 |
B L. parkerae
|
15.03 |
4H-CC |
5H-2, 105–107 |
36.20 |
39.05 |
37.63 |
1.43 |
T C. cingulata
|
15.13 |
5H-4, 105–107 |
5H-CC |
42.05 |
46.41 |
44.23 |
2.18 |
T L. elongata
|
15.15 |
6H-2, 105–107 |
6H-4, 105–107 |
48.55 |
48.57 |
48.56 |
0.01 |
B L. renzae
|
16.77 |
6H-2, 105–107 |
6H-4, 105–107 |
48.55 |
48.57 |
48.56 |
0.01 |
early Miocene
|
|
B C. costata |
17.49 |
6H-4, 105–107 |
6H-CC |
48.57 |
55.14 |
51.86 |
3.29 |
RN3
|
B D. dentata |
17.72 |
6H-CC |
7H-2, 104–106 |
55.14 |
58.04 |
56.59 |
1.45 |
B L. stauropora
|
17.72 |
6H-CC |
7H-2, 104–106 |
55.14 |
58.04 |
56.59 |
1.45 |
T D. scambos
|
18.53 |
7H-4, 104–106 |
7H-CC |
61.05 |
65.60 |
63.33 |
2.28 |
|
B S. wolffii |
18.57 |
8H-2, 105–107 |
8H-4, 105–107 |
67.55 |
70.55 |
69.05 |
1.50 |
RN2
|
B D. forcipata |
18.61 |
8H-2, 105–107 |
8H-4, 105–107 |
67.55 |
70.55 |
69.05 |
1.50 |
T D. simplex
|
18.69 |
8H-CC |
9H-2, 105–107 |
74.38 |
77.05 |
75.72 |
1.34 |
T D. praeforcipata
|
19.77 |
9CC |
10H-2, 105–107 |
84.60 |
86.56 |
85.58 |
0.98 |
B D. simplex
|
20.34 |
10H-4, 105–107 |
10H-CC |
89.55 |
93.78 |
91.67 |
2.12 |
B S. delmontensis
|
20.68 |
11H-2, 105–107 |
11H-4, 105–107 |
96.05 |
99.05 |
97.55 |
1.50 |
T L. pegetrum
|
20.89 |
11H-4, 105–107 |
11H-CC |
99.05 |
103.48 |
101.27 |
2.22 |
|
T T. annosa |
21.38 |
12H-2, 105–107 |
12H-4, 105–107 |
105.55 |
108.55 |
107.05 |
1.50 |
RN1
|
B C. virginis |
21.39 |
11H-CC |
12H-2, 105–107 |
103.48 |
105.55 |
104.52 |
1.04 |
T E. mitodes
|
21.95 |
13H-4, 104–106 |
13H-CC |
118.04 |
122.58 |
120.31 |
2.27 |
B C. serrata
|
22.04 |
15H-2, 105–104 |
15H-4, 105–107 |
126.05 |
129.05 |
127.55 |
1.50 |
B C. cornuta
|
22.26 |
15H-4, 105–107 |
15H-CC |
129.05 |
133.38 |
131.22 |
2.16 |
|
B C. tetrapera |
22.35 |
15H-4, 105–107 |
15H-CC |
129.05 |
133.38 |
131.22 |
2.16 |
RP22
|
T A. gracilis |
22.62 |
16H-2, 105–107 |
16H-4, 105–107 |
133.55 |
138.55 |
136.05 |
2.50 |
B E. diaphanes
|
22.95 |
16H-CC |
17H-2, 105–107 |
141.99 |
144.55 |
143.27 |
1.28 |
T D. cyclacantha
|
22.98 |
16H-CC |
17H-2, 105–107 |
141.99 |
144.55 |
143.27 |
1.28 |
late Oligocene
|
B D. cyclacantha |
23.29 |
17H-2, 105–107 |
17H-4, 105–107 |
144.55 |
147.55 |
146.05 |
1.50 |
T D. papilio
|
23.31 |
17H-4, 105–107 |
17H-CC |
147.55 |
151.84 |
149.70 |
2.15 |
T L. longicornuta
|
24.12 |
18H-2, 105–107 |
18H-4, 105–107 |
154.04 |
157.05 |
155.55 |
1.51 |
T L. apodora
|
24.50 |
— |
— |
|
|
0.00 |
0.00 |
|
B L. elongata |
25.05 |
— |
— |
|
|
0.00 |
0.00 |
Notes: B = bottom, T = top. — = not encountered.
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