Table T12. Distribution of diatoms, Hole 1239A.
Core, section, interval (cm)
Depth (mbsf)
Depth (mcd)
Identification
Method
Abundance
Preservation
Actinocyclus ellipticus
Actinocyclus ellipticus v. lanceolata
Actinocyclus spp.
Actinoptychus senarius
Asteromphalus elegans
Asteromphalus spp.
Azpeitia nodulifera
Chaetoceros spp. (resting spores)
Coscinodiscus spp.
Diploneis bombus
Hemidiscus cuneiformis
Nitzschia cylindrica
Nitzschia marina
Nitzschia miocenica
Nitzschia porteri
Nitzschia reinholdii
Nitzschia fossilis
Nitzschia jouseae
Paralia sulcata
Pseudoeunotia doliolus
Rhizosolenia spp.
Rhizosolenia matuyama
Rhizosolenia praebergonii robusta
Rhizosolenia praebergonii
Rossiela paleacea
Stephanopyxis spp.
Thalassionema spp.
Thalassiosira spp.
Thalassiosira burckliana
Thalassiosira convexa
Thalassiosira convexa aspinosa
Thalassiosira miocenica
Thalassiosira oestrupii
Thalassiosira praeconvexa
Thalassiothrix
Remarks
202-1239A-









































Mudline 0.00 0.00 PAL S F-C M





R


R







F




F F F



F

Cyclotella
1H-CC, 9 3.44 3.44 PAL S F P




R C
F


F


F

F F




C F-C



F
F Cyclotella
2H-CC, 20 12.85 13.00 PAL S F P


R

F
F
T



F

R
F



T F






F
3H-CC, 18 22.88 24.28 PAL S F P
R
F
T R
R





F F


T

R-F

F






R-F
4H-CC, 26 32.39 34.59 PAL S F-C P-M
F
F
T F








F
T



F

F F
F F
F
F
5H-4, 75 37.16 40.91 Toothpick S F P T F
R-F







R

T
T-R



R R

F

R



F
5H-6, 75 40.18 43.93 Toothpick S F P-M R F
R-F

F


F
F

R-F F F T
R







R





5H-CC, 22 41.91 45.66 PAL S F P-M





F


R-F
R-F

R
R-F

R




C

R-F



F-C
6H-CC, 35 51.50 56.10 PAL S F P
R-F R-F R

F

T

R

T



T



R


F





7H-1, 75 51.65 56.90 Toothpick S C M


T

T

T




T
R T
T




F


T


F
7H-2, 75 53.15 58.40 Toothpick S F-C P-M

T


T








T R







R








7H-4, 75 56.15 61.40 Toothpick S C G





C




F

F
F








T







7H-CC, 24 60.91 66.16 PAL S C M

T F

T









F







T






T
8H-CC, 31 70.46 76.41 PAL S C M



































9H-CC, 21 79.96 87.26 PAL S C M F
R F

F
F

T



R
T
R




F






F Thalassionema-Thalassiothrix fragments VA
10H-CC, 30 89.43 97.23 PAL S C M

F


F




F R
F









F






F
11H-2, 75 91.16 100.06 Toothpick S




F

F-C


R

T











F-C F


T



11H-4, 75 94.18 103.08 Toothpick S


R
R



T


F

F









F
T




F
11H-CC, 21 98.83 107.73 PAL S F-C M
R R T

F




R T T




R




F R

R F
T F
12H-CC, 35 108.48 118.28 PAL S C M-G


T
T F





F T T T








T T





F Actynocyclus moronensis
13H-CC, 23 117.88 128.68 PAL S F P

























T






T
14H-CC, 21 127.41 138.76 PAL S F P-M

























T






T
15H-CC, 24 137.03 149.18 PAL S F P



































16H-CC, 21 146.45 159.25 PAL S C-A M-G

R F

F-C C

F
F


F

F F




C F-C



F
F
17H-CC, 25 155.98 169.03 PAL S C M

R F

F C R
F
F

F R


F

F
R C F-C





F
18H-CC, 25 164.90 179.90 PAL S C M

F F
R F F



F





F F




C C



F
F
19H-CC, 23 174.94 189.24 PAL S C-A M-G


F
T F F F
F
F





F R



T F F



F
F
20X-CC, 27 184.21 199.37 PAL S F-C M





F F










F F




F F



F
F
21X-CC, 37 189.01 205.03 PAL S F P-M





F F F
R




T


R
T


F-C F-C



F
F Cyclotella
22X-3, 75 192.67 209.55 Toothpick S C M T



T F F






T


F R




F F





F
22X-5, 75 195.69 212.57 Toothpick S C M




F F F F






F

F R R



F








22X-7, 40 198.36 215.24 Toothpick S F-C P-M




R F F F
F




R

F F F



F F





F
22X-CC, 27 198.69 215.57 PAL S C M-G

R R

F F F
R
F


R

F F F



F F







23X-CC, 35 208.44 226.18 PAL S F M-G

F R
R F F R-F
R-F
F


F

F R




F F



F
F
24X-CC, 30 217.56 236.16 PAL S R-F P-M


R

F F F


F

F


T F



R F-C F-C



F
R
25X-CC, 28 227.37 246.83 PAL S C M


T

F F F T F
F

T F
T R F



F F R-F



F
F
26X-CC, 30 236.96 257.28 PAL S F P-M

F


F F

F








F

F

F








27X-CC, 33 246.24 267.42 PAL S R P

F F

F F



F


F


F




F F



F


28X-CC, 33 255.79 277.83 PAL S R-F P-M

R F

F F






R F
T
F

F

F F





F
29X-CC, 30 265.19 288.09 PAL S R-F P

T T
T F F

F
T


F R

T



R-F F

R-F



F Cyclotella
30X-CC, 1 284.91 297.99 PAL S R P R T T R

T F

R
T



T-R

R




R-F


F-R


R-F
31X-CC, 34 292.96 309.53 PAL S C M





F F

R
F



T







F F





R
32X-CC, 38 304.22 318.44 PAL S F P

T T
T F F T


F


F F







C R


T

F
33X-CC, 39 313.75 330.56 PAL S R-F P-M

F F

F F

F



R
R

F


R
F F





F
34X-CC, 34 319.53 340.95 PAL S R-F P
F F F

F F


F F

F









F


F




35X-CC, 35 333.22 347.59 PAL S C M

F


F F

F R







F


R
F F





F
36X-CC, 47 342.54 362.14 PAL S T P F R F F

F F
T


T





F


R
F






F
37X-CC, 22 352.28 372.32 PAL S F P-M


F

F F

F F F T

F








F






F
38X-CC, 34 381.19 382.92 PAL S F P





F F


F F F





R




F F

R


F
39X-CC, 1 371.64 391.26 PAL S F P-M
R R F
T F F-C

F
F

F F R

F

T-R

F F
F F
T-R
F
40X-CC, 34 389.02 404.00 PAL S F P T T
F

T R

F-C
R

R F




F T
R F T

R
T
F
41X-CC, 34 400.53 414.41 PAL S F P


T

T R



R


T


T




R-F

F



R
42X-CC, 39 410.16 423.10 PAL S F P T T T


T R

T





T

R




R

T

T
F
43X-CC, 37 419.82 435.47 PAL S F P R T T


R-F R T
F
R


F F-C

F




R-F T
F F
R
R-F
44X-CC, 40 429.18 445.96 PAL S F P-M

R T

R R

R



T
R

F




F

R-F R-F


F
45X-CC, 37 438.85 456.48 PAL S F-C P-M


T

F R



R-F



T







F






R-F
46X-CC, 31 448.48 466.70 PAL S F-C M


R


R R
R
R






R


R
F F





F
47X-CC, 33 458.10 477.23 PAL S F-C P-M T

R
T F R-F

F



F


F F



R F F-C



F


48X-CC, 33 467.80 487.72 PAL S F-C P-M

T F

R-F R-F R
R




T




R-F



F
R





49X-CC, 28 477.47 498.20 PAL S F-C P-M
R R R

F R-F

R
T

R F F T
T
T

R F-C

R R-F
T
R
50X-CC, 31 485.01 508.76 PAL S C-A P-M T

R

R R-F


T T



R-F







R-F R
R



R-F
51X-CC, 35 491.35 519.29 PAL S F P

T F

F-C T T
F
R

T F R

T
T R
F T T
R R-F
T
T
52X-CC, 32 504.71 527.69 PAL S T P T T
T

F-C T

F
T

R R F

R

R
F F F
T R


F
53X-CC, 8 511.71 534.89 PAL S T P





F T

R
R
T
T


T




F-C T





F
54X-CC, 27 504.63 549.11 PAL S R P






T



R F





T




F


F R

F
55X-CC, 0 511.69 556.97 PAL S B






T T T















T






T

Notes: PAL = paleontology sample. S = smear slide. Abundance: A = abundant, C = common, F = few, R = rare, T = trace, B = barren. Preservation: G = good, M = moderate, P = poor.