Table T10. Distribution of diatoms, Hole 1232A.
Core, section, interval (cm)
Depth (mbsf)
Depth (mcd)
Method
Preservation
Abundance
A. africana/A. tabularis
Azpeitia nodulifera
Chaetoceros resting spores
Hemidiscus cuneiformis
Fragilariopsis doliolus
Thalassionema nitzschioides
Thalassiosira eccentrica grp.
Thalassiosira oestrupii
Freshwater forms
Marine benthic forms
Marine neritic forms
Diatom fragments
Remarks
202-1232A-

















Mudline 0.00 0.00 S M F

C


F
F T
C
1H-1 1.50 7.44 S M C

A


C C
T
C
1H-4, 80 5.30 11.24 S M C

C
T





*
1H-CC 8.98 14.92 S M F

A


F F C T
C
3H-CC 28.29 32.57 S G C

A

T C C
T
C
4H-2, 10 28.60 33.98 S M F
T A


F

T
C Top of turbidite
4H-2, 20 28.70 34.08 S M C

A


C F F T T C 10 cm from turbidite top
4H-2, 30 28.80 34.18 S M F

A


F

T
C 20 cm from turbidite top
4H-5, 50 29.00 34.38 S M C

A


C C
T T T Hemipelagic greenish mud
4H-CC 36.85 42.23 S M F

F



F C T
C
5H-6, 110 45.10 50.53 S P R

F




C

T Turbidite—finer material (muddy)
5H-6, 115 45.15 50.58 S P R

F




C

T Turbidite—finer material (coarse silt)
5H-6, 118 45.18 50.61 S P T










T Base of turbidite—coarser material (fine sand)
5H-6, 120 45.20 50.63 S M C

A

T
C F T
C Top of hemipelagic sequence below turbidite
5H-CC 46.34 51.77 S G C

F



F C F T *
6H-CC 55.91 69.56 S M C

C




F F F *
7H-3, 121 59.71 75.32 S P C
T A

T C C

T T Turbidite
7H-5, 44 63.44 79.05 S M F T
A

R T T
T T *
7H-5, 60 63.60 79.21 S P R
T





T
T T
7H-5, 65 63.65 79.26 S P F
R F

T

T
T C (Delphineis)
7H-5, 80 63.80 79.41 S P F

T


T


T T (Delphineis/Actinoptychus)
7H-CC 63.97 79.58 S M F

F





R T *
8H-6, 55 73.05 89.35 S M F
T F


R
R R R * Hemipelagic greenish mud
8H-6, 80 73.30 89.60 S M C
R C T

F
T T T * Hemipelagic greenish mud
8H-CC 74.94 91.24 S M C

C

T T T T T T *
9H-3, 135 78.85 95.33 S M F

F

R T T

T C
9H-CC 83.94 100.42 S M F

F




T T
C
10H-CC 92.73 109.21 S G C

A

T C C T
T C
11H-2, 60 95.60 112.08 S P T

T




T



11H-5, 74 100.24 116.72 S P T










T Yellowish green carbonate concretion
11H-CC 103.25 119.73 S P T










T
12H-2, 70 105.20 121.96 S P T










T
12H-4, 120 108.70 125.46 S P T










T
12H-6, 25 110.75 127.51 S P T

T







T Olive mud
12H-CC 113.02 129.78 S P T

T


T



T
13X-1, 140 113.90 131.11 S P F

F

T T T
T T T
13X-2, 80 114.80 132.01 S
B












13X-CC 120.02 137.23 S P T










T
14X-CC 121.90 139.11 S P R

T


T

T
T
15X-CC 133.40 150.61 S P R

F


T
T T
T
16X-CC 143.57 160.78 S P F

C

T

T T
T
17X-CC 150.38 167.59 S P T







T

T
18X-1, 85 160.75 177.96 S
B












18X-CC 165.77 182.98 S P T

R

R T
T T
*
19X-1, 93 170.43 187.64 S M F T
C

T T T
T T C
19X-CC 172.04 189.25 S P R

F


R C T T R *
20X-CC 184.55 201.76 S P T






C T T
*
21X-CC 192.67 209.88 S P R

R


T
R
T *
22X-CC 204.63 221.84 S P R

R


T T R R T *
23X-5, 62 213.70 230.91 S M R

R

T

F T T * Base of turbidite—coarser material (fine sand)
23X-CC 215.42 232.63 S M R

T




F
T *
24X-CC 220.17 237.38 S P R

T




R T T *
25X-CC 236.67 253.88 S P T

T




T

*
26X-CC 246.28 263.71 S P T T
T





T
*
27X-CC 255.80 273.46 S P R

A


F
C

T
28X-CC 265.56 283.37 S P F

C

T T
C T
T
29X-CC 275.13 293.25 S P T










T
30X-CC 284.78 303.08 S P R








T
T
31X-CC 294.57 313.00 S P F

C

T T


C A Opal rich, many fragments, and strongly silicified forms; different assemblage from previous samples
32X-CC 304.05 322.80 S P F

F


T T T

C
33X-CC 311.18 330.13 S P F
T C


F T

T A
34X-3, 120 317.70 336.65 S P T
T T



T


*
34X-5, 54 320.04 338.99 S P F
R F

T R T T T R *
34X-7, 5 323.00 341.95 S P T

T







*
34X-7, 45 323.25 342.20 S P T

T

T



T *
34X-CC 323.30 342.25 S P T










T
35X-CC 332.83 352.00 S P T









T T
36X-CC 342.37 361.72 S P T










T
37X-CC 352.10 371.57 S P T

T


T
T

*
38X-CC 361.68 381.30 S P T

T




T

*
39X-CC 361.96 381.61 S M T







T

*

Notes: Preparation: S = smear slide. Preservation: G = good, M = moderate, P = poor. Abundance: C = common, R = rare, F = few, T = trace, B = barren. * = not considered.