Table T2.

Table T2. Datum levels used for the calculation of the Site 1127 sedimentation rate.

Datum
type Datum level Age
(Ma) Midpoint
(mbsf) Stratigraphic
error (m) Fossil
group Datum
level
code Upper sample
Lower sample

Core, section,
interval (cm) Depth
(mbsf)
Core, section,
interval (cm) Depth
(mbsf)

182-1127B-

182-1127B-

B
Emiliania huxleyi
0.25
19.33
3.99
1
1
2H-CC, 12-15
15.34

3H-CC, 17-20
23.32

T
Pseudoemiliania lacunosa
0.45
158.75
3.52
1
2
17X-CC, 23-26
155.20

18X-CC, 29-32
162.24

T
Globorotalia tosaensis
0.65
234.78
4.95
4
3
25X-CC, 29-31
229.81

26X-CC, 67-70
239.70

T
Reticulofenestra asanoi
0.88
284.8
4.975
1
4
30X-CC, 13-16
279.80

31X-CC, 36-39
289.75

B
Reticulofenestra asanoi
1.08
313.33
5.325
1
5
33X-CC, 29-32
308.00

34X-CC, 43-46
318.65

Brunhes/Matuyama
0.78
343.4

A

T
Calcidiscus macintyrei
1.67
352.32
4.85
1
6
37X-CC, 36-39
347.47

38X-CC, 31-34
357.16

T
Jaramillo
0.99
380.7

B

B
Jaramillo
1.07
394
3.5

C
42X-5, 20-21
393

42X-5, 120-121
395

B
Globorotalia truncatulinoides
2
422.71
1.425
4
7
45X-5, 89-94
421.29

45X-CC, 28-30
424.14

B
Globorotalia inflata
2.09
463.28
3.66
4
8
49X-CC, 34-37
459.62

50X-3, 144-146
466.94

T
Zeaglobigerina nepenthes
4.2
469.92
2.36
4
9
50X-4, 54-56
467.54

50X-CC, 32-35
472.25

T
Globquadrina dehiscens
5.8
483.97
4
4
10
51X-CC, 30-33
479.94

52X-CC, 20-23
487.94

T
Sphenolithus heteromorphus
13.6
504.43
3.32
1
11
54X-CC, 0-1
501.10

55X-CC, 5-6
507.75

Datum type	Datum level	Age (Ma)	Midpoint (mbsf)	Stratigraphic error (m)	Fossil group	Datum level code	Upper sample
Core, section, interval (cm)	Depth (mbsf)		Core, section, interval (cm)	Depth (mbsf)
							182-1127B-		182-1127B-
B	Emiliania huxleyi	0.25	19.33	3.99	1	1	2H-CC, 12-15	15.34	3H-CC, 17-20	23.32
T	Pseudoemiliania lacunosa	0.45	158.75	3.52	1	2	17X-CC, 23-26	155.20	18X-CC, 29-32	162.24
T	Globorotalia tosaensis	0.65	234.78	4.95	4	3	25X-CC, 29-31	229.81	26X-CC, 67-70	239.70
T	Reticulofenestra asanoi	0.88	284.8	4.975	1	4	30X-CC, 13-16	279.80	31X-CC, 36-39	289.75
B	Reticulofenestra asanoi	1.08	313.33	5.325	1	5	33X-CC, 29-32	308.00	34X-CC, 43-46	318.65
	Brunhes/Matuyama	0.78	343.4			A
T	Calcidiscus macintyrei	1.67	352.32	4.85	1	6	37X-CC, 36-39	347.47	38X-CC, 31-34	357.16
T	Jaramillo	0.99	380.7			B
B	Jaramillo	1.07	394	3.5		C	42X-5, 20-21	393	42X-5, 120-121	395
B	Globorotalia truncatulinoides	2	422.71	1.425	4	7	45X-5, 89-94	421.29	45X-CC, 28-30	424.14
B	Globorotalia inflata	2.09	463.28	3.66	4	8	49X-CC, 34-37	459.62	50X-3, 144-146	466.94
T	Zeaglobigerina nepenthes	4.2	469.92	2.36	4	9	50X-4, 54-56	467.54	50X-CC, 32-35	472.25
T	Globquadrina dehiscens	5.8	483.97	4	4	10	51X-CC, 30-33	479.94	52X-CC, 20-23	487.94
T	Sphenolithus heteromorphus	13.6	504.43	3.32	1	11	54X-CC, 0-1	501.10	55X-CC, 5-6	507.75

Notes: T = top of taxon stratigraphic range, B = bottom of taxon stratigraphic range. Midpoint = the middle depth between the sample where the taxon occurs and the adjacent sample where it does not occur. Stratigraphic error = one-half the distance between the sample where the taxon occurs and the adjacent sample where it does not occur. Datum level code = the number assigned to the datum level on Figure F6. Fossil groups = calcareous nannofossils (1) and planktonic foraminifers (4).