Table T14. Distribution of diatoms, Site 1237.
Hole, core, section,
interval (cm)
Depth (mbsf)
Depth (mcd)
Identification
Method
Abundance
Preservation
Actinoptychus senarius
Azpeitia nodulifera
Chaetoceros spp. (resting spores)
Delphineis spp.
Hemidiscus cuneiforms
Nitzschia cylindrica
Nitzschia miocenica
Nitzschia porteri
Nitzschia reinholdii
Nitzschia fossilis
Nitzschia jouseae
Paralia sulcata
Pseudoeunotia doliolus
Rhizosolenia matuyama
Rhizosolenia praebergonii robusta
Rhizosolenia praebergonii
Rossiela praepaleacea
Thalassiosira oestrupii
Thalassiosira burckliana
Thalassira convexa
Thalassiosira convexa aspinosa
Thalassiosira miocenica
Thalassiosira praeconvexa
Thalassionema nitzschioides
Thalassiosira spp.
Freshwater species
Marine benthic species
Marine neritic species (other)
Marine pelagic species (other)
Remarks
202-1237A-



































Mudline 0.00 0.00 PAL S VA G C T VA C






R R









C C
T
R
202-1237B-



































1H-1, 75 0.75 0.75 Toothpick S A M F T C F






R










F

T
R-F
1H-2, 75 2.26 2.26 Toothpick S C-A M F T C-A T






F T









T T

T F-C Cyclotella
1H-3, 75 3.76 3.76 Toothpick S C-A M F
C-A F






A T









F

F F-C R Girdle band dominant
2H-4, 20 10.22 9.37 Toothpick S C-A M R F C F







F









C T T R-F R F
202-1237A-



































1H-CC, 18 10.90 11.80 PAL S C P-M R F C F






R R









C F

T






































202-1237B-



































2H-4, 130 11.32 10.47 Toothpick S C-A M R F C-A F




T

R









C
T
R R Stephanopyxis
2H-7, 10 14.64 13.79 Toothpick S F-C M R F F R-F


















F
R R R R Cyclotella
2H-CC, 24 15.47 14.62 PAL S/AC C P-M F
C-A F






R










F F
R R

3H-1, 75 15.75 16.85 Toothpick S F P

F F






T R-F






T

F R
T R T
3H-3, 75 18.77 19.87 Toothpick S C M-G T A C-A R




T
T R



R




A R
T A F
3H-5, 75 21.79 22.89 Toothpick S C M R R C-A R



T T


T


R




C F
R R T
4H-1, 40 24.90 29.20 Toothpick S C-A G F C A F



R F
F R



R




C F

F F
3H-CC, 19 25.00 26.10 PAL S/AC C P-M R R A F



R T

T R


R




C F
R R R
4H-3, 40 27.92 32.22 Toothpick S C-A G F C C-A C







R



T




C C R
F F
4H-5, 40 30.95 35.25 Toothpick S C M R R A R




R












C F

F F
4H-6, 40 32.46 36.76 Toothpick S C M-G

A F R-F



T












A R T T F F
4H-CC, 20 34.55 38.85 PAL S/AC C-A M R T A C R



T
R




R

T

C F

F F
5H-1, 75 34.75 38.02 Toothpick S A G T
A T





T? T




T?




C-A T

C R Very rich in Stephanopyxis
5H-4, 75 39.29 42.56 Toothpick S F P
R F



















F R

R

5H-6, 75 42.30 45.57 Toothpick S F M-G
F F F












F




F F


F
5H-CC, 22 44.02 47.29 PAL S/AC F M
T R T



R T
T










R-F T

T F
6H-1, 75 44.25 49.97 Toothpick S F P-M T T F F






T










F

T
T
6H-2, 22 45.23 50.95 Toothpick S F P-M T F A
F


R T T T


T



T

A T T
R F
6H-3, 13 46.65 52.37 Toothpick S F-C M-G
T F T



R R A


A R


R R

F F


F
6H-3, 45 46.97 52.69 Toothpick S F P
F F





T



R







F-C R

R F
6H-4, 35 48.37 54.09 Toothpick S C M
F C
R



T
T


T
R




C R

F F
6H-5, 70 50.22 55.94 Toothpick S C M-G
R C F F




T











C F
R R C
6H-6, 101 52.04 57.76 Toothpick S R-F P-M
F R
R









R






F
R

T
6H-CC, 30 53.51 59.23 PAL S/AC F P-M R R A F T


T

T






R-F


C-A T T
R R
7H-1, 110 54.10 59.67 Toothpick S C-A M-G
R

F









F
R
F-C


F R


C
7H-2, 40 54.91 60.48 Toothpick S C M R
C F



T
T





R




C R


F
7H-3, 73 56.74 62.31 Toothpick S T P

T



















T



T
7H-4, 56 58.07 63.64 Toothpick S T P

T



















T T




7H-5, 143 60.44 66.01 Toothpick S T P

T



















T


T T
7H-6, 97 61.49 67.06 Toothpick S T P


T












T




T



T
7H-CC, 19 62.80 68.37 PAL S/AC C M-G
F-C R-F T F


T T






T




C T

F R A. ingens (R)
8H-1, 101 63.51 69.23 Toothpick S F P-M
F R T T

















R T


F
8H-2, 90 64.91 70.63 Toothpick S F M T F





T
T
















R
8H-3, 75 66.28 72.00 Toothpick S F P
F




















R T




8H-4, 62 67.65 73.37 Toothpick S F P-M
F F





R






R




F



F
8H-5, 75 69.29 75.01 Toothpick S R P
R





T
T











R


T T
8H-5, 128 69.82 75.54 Toothpick S T P






















T





8H-5, 136 69.90 75.62 Toothpick S F-C M T F F




F







F




F R
T
R
8H-6, 43 70.48 76.20 Toothpick S T M






















T





8H-7, 40 71.96 77.68 Toothpick S F M
F





R
R











F





8H-CC, 39 72.66 78.38 PAL S/AC R P R-F F-C R-F T T


T T T








T

C


R-F R
9H-1, 83 72.83 80.20 Toothpick S R P T T







T











T





9H-2, 75 74.26 81.63 Toothpick S T P

T



















T T


T
9H-4, 39 76.91 84.28 Toothpick S F M
T

T





T

















9H-4, 143 77.95 85.32 Toothpick S F M
F T




T













R T


R
9H-5, 68 78.71 86.08 Toothpick S T P-M






















T



T
9H-6, 17 79.70 87.07 Toothpick S T P
T

T
























9H-6, 30 79.83 87.20 Toothpick S F M-G
F F

T

R


















T
9H-6, 95 80.48 87.85 Toothpick S F-C M-G
F F-C





R-F






F




F-C F
T
F
9H-7, 30 81.35 88.72 Toothpick S F-C M-G R F F R R



F












C

T
F Rhizosolenia barboi
9H-CC, 20 81.86 89.23 PAL S/AC C P-M

F T R-F


T R T





T




F-C



R
10H-3, 50 85.06 94.28 Toothpick S T P





























10H-6, 133 90.40 99.62 Toothpick S B






























10H-CC, 10 91.29 100.51 PAL S/AC R-F P-M
R C
R

















C F




11H-2, 22 92.73 102.40 Toothpick S F P-M
F

T


T











T?
F
T
T R
11H-3, 75 94.77 104.44 Toothpick S T P
F T T
R-F

R T






F




F



R
11H-5, 31 97.35 107.02 Toothpick S R-F M
R-F R
T






















T
12H-1, 22 100.72 111.49 Toothpick S F M
R




T T T












T



T
11H-CC, 25 101.10 110.77 PAL S/AC C M T F
T F





T




T




C R

R R
12H-2, 19 102.20 112.97 Toothpick S B






























12H-4, 38 105.40 116.17 Toothpick S F M
F T
T




















T T

12H-4, 138 106.40 117.17 Toothpick S T P






















T





12H-6, 82 108.86 119.63 Toothpick S T-R P
T





















T


T
12H-CC, 18 109.81 120.58 PAL S/AC R P-M
T T
R

















T T


R
13H-1, 30 110.30 121.35 Toothpick S B






























13H-3, 112 114.16 125.21 Toothpick S R P





























13H-5, 8 116.13 127.18 Toothpick S T P























T


T
13H-5, 38 116.43 127.48 Toothpick S B






























13H-6, 78 118.33 129.38 Toothpick S R P





























13H-CC, 1 119.75 130.80 PAL S/AC C-A M C C
R R
C
F










C

C-A C

C F
14H-1, 95 120.45 132.20 Toothpick S R P



T














T

T



T
14H-2, 95 121.96 133.71 Toothpick S R-F P-M
T

T
T T T T












F R


T
202-1237C-



































13H-5, 26 122.10 131.30 Toothpick S F P-M R

R R


R







R





R

T F
13H-6, 98 124.33 133.53 Toothpick S R P





























202-1237B-



































14H-4, 95 124.97 136.72 Toothpick S T P






















T



T
202-1237C-



































14H-2, 91 127.71 138.77 Toothpick S R P-M

R



















R R


T
202-1237B-



































15H-1, 3 129.03 141.58 Toothpick S B






























14H-CC, 26 129.40 141.15 PAL S/AC R P R R

R


R













R R


R
202-1237C-



































14H-4, 70 130.50 141.57 Toothpick S F M
R


















T
F R


F
14H-4, 144 131.24 142.31 Toothpick S R P
T




















T



T
15H-2, 125 131.76 144.31 Toothpick S T P

T



















T





15H-3, 58 132.60 145.15 Toothpick S T P























T


T
15H-5, 46 135.50 148.05 Toothpick S R P



























T
15H-CC, 1 138.66 151.21 PAL S/AC F P R F R
R T
T














F T


F Rouxia californica
16H-3, 24 141.75 154.45 Toothpick S R P



























R
16H-5, 8 144.61 157.31 Toothpick S T P

T


























16H-6, 133.5 147.38 160.07 Toothpick S B






























16H-CC, 12 148.21 160.91 PAL S/AC T P
T F














T



F R-F




17H-1, 30 148.30 163.10 Toothpick S T P






















T





17H-3, 124 152.25 167.05 Toothpick S T P






















T





17H-4, 30 152.82 167.62 Toothpick S T M






















T





17H-5, 30 154.33 169.13 Toothpick S B






























17H-6, 30 155.83 170.63 Toothpick S B






























17H-7, 30 157.33 172.13 Toothpick S B






























17H-CC, 21 158.00 172.80 PAL S/AC T






























18H-1, 75 158.25 173.98 Toothpick S B






























18H-2, 75 159.42 175.15 Toothpick S B






























18H-3, 75 160.92 176.65 Toothpick S B






























18H-4, 75 162.43 178.16 Toothpick S B






























18H-5, 75 163.94 179.67 Toothpick S B






























18H-6, 75 165.45 181.18 Toothpick S B






























18H-CC, 1 166.89 182.62 PAL S/AC T P

T



















T





19H-1, 3 167.03 184.38 Toothpick S/AC VA M




























late Miocene contamination?
19H-1, 5 167.05 184.40 Toothpick S VA E




























Contaminated sample-down fall???
19H-3, 67 170.70 188.05 Toothpick S B






























19H-5, 85 173.90 191.25 Toothpick S B






























19H-5, 89 173.94 191.29 Toothpick S B






























19H-CC, 13 176.81 194.16 PAL S/AC T P























T

T

20H-1, 75 177.25 195.40 Toothpick S B






























20H-2, 137 179.38 197.53 Toothpick S B






























20H-3, 25 179.77 197.92 Toothpick S B






























20H-4, 9 181.11 199.26 Toothpick S B






























20H-5, 10 182.63 200.78 Toothpick S B






























20H-CC, 24 186.41 204.56 PAL S/AC B






























21H-1, 107 187.07 206.27 Toothpick S B






























21H-3, 120 190.22 209.42 Toothpick S B






























21H-5, 132 193.36 212.56 Toothpick S B






























21H-6, 116 194.71 213.91 Toothpick S B






























21H-7, 20 195.26 214.46 Toothpick S B






























22H-1, 10 195.60 215.95 Toothpick S B






























22H-1, 20 195.70 216.05 Toothpick S B






























21H-CC, 14 195.79 214.99 PAL S/AC B






























22H-5, 60 202.13 222.48 Toothpick S B






























22H-6, 140 204.44 224.79 Toothpick S B






























22H-CC, 1 205.44 225.79 PAL AC B






























23H-CC, 16 214.67 236.82 PAL AC B






























24H-CC, 10 224.17 247.52 PAL AC B






























25H-CC, 10 233.68 259.48 PAL AC B






























26H-CC, 9 243.48 269.13 PAL AC B






























27H-CC, 14 252.80 281.26 PAL AC B






























28H-CC, 16 262.48 291.54 PAL AC B






























29H-CC, 15 271.95 303.56 PAL AC B






























30H-CC, 0 281.24 314.85 PAL AC B






























31H-CC, 15 291.06 326.47 PAL AC B






























32H-CC, 25 300.54 338.35 PAL AC B






























33H-CC, 14 310.09 349.95 PAL AC B






























34H-CC, 24 319.49 360.60 PAL AC B






























Notes: PAL = paleontology sample. S = smear slide, AC = acid-centrifuge enrichment method. Abundance: VA = very abundant, A = abundant, C = common, F = few, T = trace, B = barren.