Table T3. Calcareous nannofossil datums, Hole 1051A.
| Datum | Species | Zone/Subzone | Age (Ma) |
Core,
section, interval (cm) |
Depth (mbsf) |
Error
depth (mbsf) |
|
|---|---|---|---|---|---|---|---|
171B-1051A |
|||||||
B |
D. bisectus |
? |
38.0 |
10H-6, 90-91 |
90.20 |
91.00 |
|
T |
C. solitus |
t CP14a |
40.4 |
12H-3, 67-69 |
103.15 |
104.47 |
|
B |
C. reticulatum |
42.0 |
17X-4, 45-47 |
153.25 |
156.48 |
||
B |
R. umbilicus |
b CP14a |
43.7 |
24X-3, 66-68 |
219.46 |
221.19 |
|
T |
N. fulgens |
43.1 |
25X-4, 53-55 |
229.30 |
230.43 |
||
T |
C. gigas |
t CP13c |
44.5 |
27X-CC, 36-38 |
252.85 |
254.47 |
|
B |
C. gigas |
b CP13b |
46.1 |
36X-4, 56-58 |
336.16 |
340.89 |
|
B |
N. fulgens |
? |
b CP13a |
47.3 |
37X-CC, 13-16 |
347.06 |
350.67 |
B |
R. inflata |
b CP12b |
48.5 |
40X-CC, 38-40 |
377.18 |
379.77 |
|
B |
D. sublodoensis |
? |
b CP12a |
49.7 |
44X-1, 75-77 |
409.85 |
412.95 |
T |
T. orthostylus |
50.6 |
42X-1, 81-83 |
380.58 |
390.71 |
||
B |
D. lodoensis |
b CP10 |
52.9 |
47X-2, 72-74 |
440.12 |
443.18 |
|
T |
T. contortus |
53.6 |
48X-CC, 52-54 |
456.72 |
457.30 |
||
B |
T. orthostylus |
b CP9b |
53.6 |
48X-CC, 52-54 |
457.30 |
457.11 |
|
T |
T. bramlettei |
53.9 |
49X-2, 50-52 |
457.85 |
459.08 |
||
B |
T. contortus |
54.4 |
51X-CC, 39-41 |
476.56 |
481.69 |
||
B |
T. Bramlettei |
b CP9a |
55.2 |
55X-CC, 19-22 |
510.82 |
518.55 |
|
T |
F. tympaniformis |
55.3 |
56X-3, 65-66 |
510.82 |
518.55 |
Notes: B = base of age datum, T = top of age datum, ? = questionable, b = base of age datum within zone, t = top of age datum within zone. Error depth = depth to next sample studied above or below a datum level.