Table 3. Distribution chart of diatom species at Site 1021.

Table 3. Distribution chart of diatom species at Site 1021.

Core, section,
interval (cm)

Depth (mbsf)

Depth (mcd)
Preservation Diatom valves (no./g) Chaetoceros spp. resting spores Actinocyclus oculatus Actinoptychus senarius Aulacoseira spp. Coscinodiscus radiatus Delphineis surirella Fragilaria spp. Melosira spp. Navicula spp. Neodenticula seminae Paralia sulcata Pinnularia spp. Rhaphoneis amphiceros Rhaphoneis paralis Rhizosolenia styliformis Rhoicosphaenia spp. Stephanodiscus astrea Stephanopyxis turris Synedra spp. Thalassiosira decipiens Thalassiosira gravida Thalassionema nitzschioides Thalassionema nitzschioides var. parva Thalassiothrix frauenfeldii Thalassiothrix longissima Total counts

167-1021B-

1H-1, 70-72 0.70 0.70 M 2.01E+05 6
2 1
1
1
2 1

1 1

1
6 2
1 20

1H-1, 140-142 1.40 1.40 P 1.21E+05 1

4 1
1
1

1

1 2
1
12

1H-2, 70-72 2.20 2.20 M 6.04E+04 1

3

2
1

6

1H-2, 140-142 2.90 2.90 M 1.61E+05 3

3

1

1

3 1

3 3
1 16

1H-3, 70-72 3.70 3.70 P 8.05E+04

3

3

1 1

8

1H-3, 140-142 4.40 4.40 M 2.01E+04

2

2

1H-4, 70-72 5.20 5.20 — 0.00E+00 1

0

1H-4, 140-142 5.90 5.90 — 0.00E+00

0

1H-5, 70-72 6.70 6.70 — 0.00E+00

0

1H-5, 140-142 7.40 7.40 — 0.00E+00

0

2H-1, 70-72 8.70 9.88 — 0.00E+00

0

2H-1, 140-142 9.40 10.58 — 0.00E+00

0

2H-2, 70-72 10.20 11.38 — 0.00E+00

0

2H-2, 140-142 10.90 12.08 — 0.00E+00

0

2H-3, 56-58 11.70 12.88 — 0.00E+00

0

2H-3, 140-142 12.40 13.58 — 0.00E+00

0

2H-4, 70-72 13.20 14.38 — 0.00E+00

0

2H-4, 140-142 13.90 15.08 P 2.01E+04 1

2

2

2H-5, 70-72 14.70 15.88 P 0.00E+00

0

2H-5, 140-142 15.40 16.58 — 0.00E+00

0

2H-6, 70-72 16.20 17.38 — 0.00E+00

0

2H-6, 140-142 16.90 18.08 — 0.00E+00

0

2H-7, 66-68 17.66 18.84 P 1.01E+04 3

1

1

3H-1, 70-72 18.20 20.14 P 1.01E+05

7

1

2

10

3H-1, 140-142 18.90 20.84 P 1.01E+04

1

1

3H-2, 70-72 19.70 21.64 — 0.00E+00

0

3H-2, 140-142 20.40 22.34 P 2.01E+04
1

1 2

3H-3, 70-72 21.20 23.14 P 1.01E+04

1

1

3H-3, 140-142 21.90 23.84 — 0.00E+00

0

3H-4, 70-72 22.70 24.64 P 2.01E+04 1

1

1

2

3H-4, 140-142 23.40 25.34 P 1.01E+04

1

1

3H-5, 70-72 24.20 26.14 — 0.00E+00

0

3H-5, 140-142 24.90 26.84 P 2.01E+04

1

1

2

3H-6, 70-72 25.70 27.64 P 2.01E+04

2

2

Core, section, interval (cm)	Depth (mbsf)	Depth (mcd)	Preservation	Diatom valves (no./g)	Chaetoceros spp. resting spores	Actinocyclus oculatus	Actinoptychus senarius	Aulacoseira spp.	Coscinodiscus radiatus	Delphineis surirella	Fragilaria spp.	Melosira spp.	Navicula spp.	Neodenticula seminae	Paralia sulcata	Pinnularia spp.	Rhaphoneis amphiceros	Rhaphoneis paralis	Rhizosolenia styliformis	Rhoicosphaenia spp.	Stephanodiscus astrea	Stephanopyxis turris	Synedra spp.	Thalassiosira decipiens	Thalassiosira gravida	Thalassionema nitzschioides	Thalassionema nitzschioides var. parva	Thalassiothrix frauenfeldii	Thalassiothrix longissima	Total counts
167-1021B-
1H-1, 70-72	0.70	0.70	M	2.01E+05	6		2	1		1		1		2	1					1	1			1		6	2		1	20
1H-1, 140-142	1.40	1.40	P	1.21E+05	1			4	1		1		1							1					1	2		1		12
1H-2, 70-72	2.20	2.20	M	6.04E+04	1			3								2		1												6
1H-2, 140-142	2.90	2.90	M	1.61E+05	3			3			1			1								3	1			3	3		1	16
1H-3, 70-72	3.70	3.70	P	8.05E+04				3							3											1	1			8
1H-3, 140-142	4.40	4.40	M	2.01E+04																						2				2
1H-4, 70-72	5.20	5.20	—	0.00E+00	1																									0
1H-4, 140-142	5.90	5.90	—	0.00E+00																										0
1H-5, 70-72	6.70	6.70	—	0.00E+00																										0
1H-5, 140-142	7.40	7.40	—	0.00E+00																										0
2H-1, 70-72	8.70	9.88	—	0.00E+00																										0
2H-1, 140-142	9.40	10.58	—	0.00E+00																										0
2H-2, 70-72	10.20	11.38	—	0.00E+00																										0
2H-2, 140-142	10.90	12.08	—	0.00E+00																										0
2H-3, 56-58	11.70	12.88	—	0.00E+00																										0
2H-3, 140-142	12.40	13.58	—	0.00E+00																										0
2H-4, 70-72	13.20	14.38	—	0.00E+00																										0
2H-4, 140-142	13.90	15.08	P	2.01E+04	1																					2				2
2H-5, 70-72	14.70	15.88	P	0.00E+00																										0
2H-5, 140-142	15.40	16.58	—	0.00E+00																										0
2H-6, 70-72	16.20	17.38	—	0.00E+00																										0
2H-6, 140-142	16.90	18.08	—	0.00E+00																										0
2H-7, 66-68	17.66	18.84	P	1.01E+04	3												1													1
3H-1, 70-72	18.20	20.14	P	1.01E+05				7						1												2				10
3H-1, 140-142	18.90	20.84	P	1.01E+04															1											1
3H-2, 70-72	19.70	21.64	—	0.00E+00																										0
3H-2, 140-142	20.40	22.34	P	2.01E+04		1																							1	2
3H-3, 70-72	21.20	23.14	P	1.01E+04																						1				1
3H-3, 140-142	21.90	23.84	—	0.00E+00																										0
3H-4, 70-72	22.70	24.64	P	2.01E+04	1			1						1																2
3H-4, 140-142	23.40	25.34	P	1.01E+04															1											1
3H-5, 70-72	24.20	26.14	—	0.00E+00																										0
3H-5, 140-142	24.90	26.84	P	2.01E+04										1												1				2
3H-6, 70-72	25.70	27.64	P	2.01E+04										2																2