Table T6. Relative abundance of selected diatom taxa, sponge spicules, and silicoflagellates, Hole 1169A.

Core, section,
interval (cm)
Depth
(mbsf)
Group preservation
Group abundance
Actinocyclus curvatulus
Actinocyclus fryxellae
Actinocyclus ingens
Actinocyclus ingens var. nodus
Actinocyclus ingens var. ovalis
Asteromphalus spp.
Azpeitia nodulifer
cf. Azpeitia nodulifer
Azpeitia tabularis group
Cestodiscus antarcticus
Chaetoceros resting spores
Coscinodiscus marginatus
Coscinodiscus rhombicus
Denticulopsis dimorpha
Denticulopsis hustedtii
Diploneis bombus
Ethmodiscus rex
Eucampia antarctica
Fragilariopsis barronii
Fragilariopsis fossilis
Fragilariopsis kerguelensis
Fragilariopsis lacrima
Fragilariopsis reinholdii
Fragilariopsis ritscheri
Fragilariopsis spp.
Fragilariopsis weaveri
Hemidiscus cf. cuneiformis
Hemidiscus cuneiformis
Hemidiscus karstenii
Lisitzinia ornata
Nitzschia donahuensis
Proboscia barboi
Rhizosolenia spp.
Rocella gelida
Rocella gelida var. schraderi
Silicoflagellate tests
Sponge spicules
Synedra jouseana
Thalassionema nitzschioides
T. nitzschioides var. parva
Thalassiosira complicata
Thalassiosira convexa
Thalassiosira eccentrica
Thalassiosira elliptipora
Thalassiosira fasciculata
Thalassiosira gracilis
Thalassiosira insigna
Thalassiosira inura
Thalassiosira lentiginosa
Thalassiosira leptopus
Thalassiosira oestrupii
Thalassiosira oliverana
Thalassiosira spp.
Thalassiosira torokina
Thalassiosira striata
Thalassiosira symmetrica
T. tetraoestrupii var. reimeri
Thalassiosira torokina
Thalassiothrix antarctica
189-1169A-





























































1H-CC, 17-21 8.52 MG C

C


C
R

C


R
R

A
R F


A F

C


C A




F




R R
C





A
2H-CC, 12-17 15.04 G C







R
R F
R

P
C
C
R

C
C C

A


C A
R


F


F F

F F F




A
3H-CC, 15-20 27.90 G C

R


R


R




P




C

C
C F

F


F A
R
R
R


F F
R R C R




D
4H-CC, 10-15 37.35 P A
F C

R R
R

R



P
F
F

R


F R

C R

F A
R R


R
R

C R R F





D
5H-CC, 11-16 46.79 M A





R



F



P
F

R




F


C


F A




F


C



C


R

D
6H-CC, 14-19 56.11 MG R

D







F



P
F F







R





F F
R


R





F R F





C
7H-CC, 14-19 66.00 M C

F




R

R



P
F C










C R

F C
F





R



F



R

C
8H-CC, 0-5 75.32 MG A

R






R C



P R







D A F





F A
R







R


F





C
9H-CC, 9-14 84.41 MG C
R C


R



P



P


R R F
R C R F F
R



F C



F




F


C

R

R C
10H-CC, 22-27 94.50 M A

F







P



P P C F
P F

P
P

P D


F A
P


R





C P P





C
11H-CC, 21-26 104.10 G C







P

C





C





P P



C


P C


P






P F F F





C
12H-CC, 23-27 113.50 MG A P




F


P P








P P

C P P C





P C


F




P P

P C




P D
13H-CC, 20-25 122.30 M C

C






P




P







F

P





P F






P





P





C
14H-CC, 73-78 132.16 P T


































P R




















T
15H-CC, 20-25 142.09 G C










F





C







C






P C













F





C
16H-CC, 13-18 151.46 M C

C







C



P
C







C






P C













C





D
17H-CC, 11-16 161.05 G C

C




P















C

P





P C






F





P
P



C
18H-CC, 13-18 170.37 P R



T






























R




















R
19H-CC, 8-13 178.16 P R






R













P







R



R




















R
20H-CC, 23-29 189.32 P F
F F


F



T



P

P






P P

R



















P


P
F
21H-CC, 21-26 198.19 P T















P
R






































T
22X-CC, 0-5 202.06 P T
T T
































F




















T
23X-CC, 12-17 214.19 P F

F









F P




















F




















T
24X-CC, 8-13 222.33 MG F

C P








C


















F C
C F



















P
25X-CC, 14-19 231.58 P F

F







F
C












P


R



F




















P
26X-CC, 21-26 243.73 P T












T











































T

Notes: Preservation: G = good, M = moderate, P = poor. Abundance: D = dominant, A = abundant, C = common, F = few, R = rare, T = trace, B = barren.