U.S. Department of the Interior
U.S. Geological Survey
OFR-97-460

Table 1 Russell Bank 19B Percent Abundance of Benthic Foraminifera
Depth in Core	Ammonia parkinsoniana tepida	Ammonia parkinsoniana typica	Archaias angulatus	Bolivina lowmani	Bolivina pseudoplicata	Clavulina tricarinata	Cyclogyra planorbis	Elphidium delicatulum	Elphidium galvestonense typicum	Elphidium galvestonense mexicanum	Elphidium poeyanum	Grass dweller	Miliolinella circularis	Miliolinella fichteliana	Miliolinella labiosa	Nodosariidae	Peneroplis proteus	Quinqueloculina agglutinans	Quinqueloculina bosciana
0-2 cm	0.00	1.07	0.00	0.00	0.00	0.00	0.00	0.00	11.23	1.07	0.00	0.80	12.03	0.00	0.00	0.00	0.27	0.00	17.91
4-6 cm	0.00	0.98	1.64	0.00	0.00	0.00	0.00	0.00	9.18	3.28	0.00	0.33	7.87	0.00	0.00	0.00	0.00	0.66	14.43
8-10 cm	0.00	5.23	0.00	0.00	0.00	0.00	0.00	0.00	14.63	4.18	0.00	0.70	5.92	0.00	0.00	0.00	0.70	0.00	16.72
12-14 cm	0.00	6.42	5.20	0.00	0.00	0.00	0.00	0.00	8.87	13.76	0.00	0.00	6.73	0.00	0.31	0.00	0.92	0.61	7.65
16-18 cm	0.00	7.61	5.43	0.00	0.00	0.00	0.00	0.00	21.74	19.57	0.00	0.00	5.43	0.00	0.00	0.00	0.00	3.26	5.43
24-26 cm	0.00	8.88	1.64	0.00	0.00	0.00	0.00	0.00	5.59	10.86	0.00	0.66	3.29	0.33	0.00	0.00	0.66	3.95	21.71
28-30 cm	0.00	17.38	0.66	0.00	0.00	0.00	0.00	0.00	17.70	27.87	0.00	0.33	4.92	0.00	0.00	0.33	0.33	0.00	4.59
32-34 cm	0.00	12.94	1.29	0.00	0.00	0.00	0.00	0.00	19.74	19.09	0.00	0.00	3.88	0.00	0.00	0.00	0.00	0.00	30.10
36-38 cm	0.00	23.47	1.44	0.00	0.00	0.00	0.72	0.00	10.11	12.27	0.00	0.72	2.17	0.72	0.00	0.00	0.00	0.72	24.55
40-42 cm	0.00	5.56	0.65	0.00	0.00	0.00	0.65	0.00	12.42	0.00	0.00	1.96	7.52	0.00	0.00	0.00	0.00	0.33	35.62
44-46 cm	0.00	5.25	0.31	0.00	0.00	0.00	0.93	0.00	12.65	5.56	0.00	1.54	7.41	0.00	0.00	0.00	0.00	1.85	25.62
48-50 cm	0.00	9.94	0.00	0.00	0.29	0.00	0.29	0.00	0.00	31.29	0.00	1.75	2.92	0.00	0.00	0.00	0.00	0.29	24.27
52-54 cm	0.00	6.64	0.00	0.35	0.00	0.00	1.40	0.00	13.64	6.99	0.00	3.85	6.99	0.00	0.00	0.00	0.00	0.00	25.52
56-58 cm	0.00	2.81	1.12	0.00	0.00	0.00	0.56	0.00	11.80	5.34	0.00	8.71	9.27	0.00	0.00	0.00	0.00	0.56	23.88
60-62 cm	0.00	9.75	1.44	0.00	0.00	0.00	0.36	0.00	9.03	17.33	0.00	3.25	7.22	0.00	0.00	0.00	0.00	0.72	22.74
64-66 cm	0.00	7.67	1.84	0.00	0.00	0.31	0.61	0.00	7.06	16.26	0.00	2.76	7.36	0.00	0.00	0.00	0.61	1.23	14.42
68-70 cm	0.00	15.36	0.31	0.00	0.00	0.63	0.00	0.00	9.72	31.03	0.00	0.63	13.48	0.00	0.00	0.00	0.00	0.00	4.39
72-74 cm	0.00	16.91	3.44	0.00	0.00	0.00	0.00	0.00	12.61	24.36	0.00	0.86	8.02	0.00	0.00	0.00	0.00	1.15	8.60
76-78 cm	0.00	14.67	3.67	0.00	0.00	0.00	0.00	0.00	9.00	37.67	0.00	0.00	5.00	0.00	0.67	0.00	0.00	0.00	2.67
80-82 cm	0.00	19.21	2.13	0.00	0.00	0.00	0.00	0.00	7.93	39.94	0.00	0.00	2.13	0.00	0.00	0.00	0.00	1.22	0.30
84-86 cm	0.00	20.97	0.32	0.00	0.00	0.00	0.00	0.00	8.06	34.19	11.29	0.00	2.26	0.00	0.00	0.00	0.00	0.00	1.61
88-90 cm	0.00	18.64	0.34	0.00	0.00	0.00	0.00	0.00	0.00	39.32	11.53	0.00	2.37	0.00	0.00	0.00	0.34	0.34	1.02
92-94 cm	0.00	3.29	0.33	0.00	0.00	0.00	0.00	0.00	7.57	12.17	23.03	0.00	9.21	0.00	0.00	0.00	0.00	0.33	7.89
96-98 cm	0.00	5.38	0.28	0.00	0.00	0.00	0.00	27.20	6.52	11.33	0.00	0.00	7.37	0.00	0.00	0.00	0.00	0.00	14.16
100-102 cm	0.00	11.48	0.33	0.00	0.00	0.00	0.00	22.30	0.00	25.90	0.00	0.00	5.90	0.00	0.00	0.00	0.00	0.00	2.95
104-106 cm	0.00	6.35	1.59	0.00	0.00	0.00	0.00	20.32	3.17	13.33	0.00	0.00	7.94	0.00	0.00	0.00	0.63	1.27	15.56
108-110 cm	0.00	16.55	3.38	0.00	0.00	0.00	0.00	4.39	2.70	26.01	0.00	0.00	12.50	0.68	0.00	0.00	0.00	3.38	0.00
112-114 cm	0.80	4.79	1.33	0.00	0.00	0.00	0.00	0.00	17.29	10.64	0.00	0.00	15.96	0.27	0.00	0.00	0.53	1.33	19.41
116-118 cm	0.00	11.81	1.39	0.00	0.00	0.00	0.00	0.00	28.47	20.14	0.00	0.00	9.72	0.00	0.00	0.00	0.00	0.00	2.43
120-122 cm	0.00	17.61	0.66	0.00	0.00	0.00	0.00	0.00	20.93	22.92	0.00	0.00	5.32	0.00	0.00	0.00	0.00	0.66	0.00
124-126 cm	0.00	31.42	4.53	0.00	0.00	0.60	0.00	1.21	0.00	43.50	0.00	0.00	2.42	0.00	0.00	0.00	0.00	2.42	0.00
128-130 cm	0.00	27.86	3.52	0.00	0.00	0.00	0.00	5.28	0.00	41.64	0.00	0.00	5.87	0.00	0.00	0.00	0.00	4.11	0.29
132-134 cm	0.00	17.05	1.29	0.00	0.00	0.00	0.00	9.04	2.33	31.78	0.00	0.00	9.56	0.00	0.00	0.00	0.00	0.52	3.10
136-138 cm	0.00	8.43	4.21	0.00	0.00	0.00	0.00	8.99	3.93	12.36	0.00	0.00	24.44	0.00	0.28	0.00	0.84	1.97	4.49
140-142 cm	0.00	20.32	5.81	0.00	0.00	0.00	0.00	0.00	6.45	39.03	0.00	0.00	6.45	0.00	0.00	0.00	0.00	2.90	0.00

Table 1 (continued) Russell Bank 19B Percent Abundance of Benthic Foraminifera
Depth in Core	Quinqueloculina seminulum	Quinqueloculina tenagos	Quinqueloculina polygona	Quinqueloculina poeyana	Rosalina floridana	Rosalina globularis	Spiroloculina antillarium	Triloculina lineiana	Triloculina rotunda	Triloculina triloculina	Valvulina sp.	Valvulineria laevigata	Number of Species	Simpson's Diversity Index
0-2 cm	13.37	1.07	4.81	32.35	2.14	0.00	0.27	0.00	0.00	1.60	0.00	0.00	14	0.19
4-6 cm	5.25	0.00	12.79	39.34	0.66	0.00	0.98	0.00	0.00	2.62	0.00	0.00	14	0.21
8-10 cm	7.32	2.79	2.44	32.75	0.35	0.00	0.00	0.00	0.00	6.27	0.00	0.00	13	0.18
12-14 cm	3.67	1.53	2.14	28.75	0.92	0.00	0.00	0.00	0.31	10.09	0.00	2.14	17	0.14
16-18 cm	2.17	0.00	6.52	14.13	0.00	0.00	1.09	0.00	0.00	7.61	0.00	0.00	12	0.13
24-26 cm	2.30	9.54	6.91	14.80	0.99	0.00	0.00	0.00	4.93	1.64	0.00	1.32	18	0.11
28-30 cm	8.85	0.00	3.93	10.82	2.30	0.00	0.00	0.00	0.00	0.00	0.00	0.00	13	0.17
32-34 cm	0.00	0.00	6.47	5.83	0.65	0.00	0.00	0.00	0.00	0.00	0.00	0.00	9	0.19
36-38 cm	0.72	2.89	2.17	13.72	0.00	0.00	0.00	0.00	2.17	1.08	0.36	0.00	17	0.16
40-42 cm	10.46	1.63	1.63	19.93	0.65	0.00	0.00	0.00	0.65	0.00	0.00	0.33	15	0.20
44-46 cm	6.48	3.40	3.70	23.77	1.54	0.00	0.00	0.00	0.00	0.00	0.00	0.00	14	0.16
48-50 cm	3.22	1.75	1.17	16.37	2.05	0.00	0.00	0.00	2.05	2.34	0.00	0.00	15	0.20
52-54 cm	2.45	1.40	0.00	27.97	1.40	0.00	0.00	0.00	0.00	1.40	0.00	0.00	13	0.18
56-58 cm	3.65	0.00	1.69	26.69	0.56	0.00	0.00	0.00	0.00	3.37	0.00	0.00	14	0.16
60-62 cm	10.11	1.81	3.97	12.27	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	13	0.13
64-66 cm	5.21	2.15	7.06	19.33	2.45	0.00	0.00	0.00	1.23	2.15	0.00	0.31	19	0.11
68-70 cm	8.78	0.00	0.00	13.17	2.19	0.00	0.00	0.00	0.00	0.31	0.00	0.00	12	0.18
72-74 cm	2.01	0.86	4.01	11.46	1.15	0.00	0.00	0.00	0.00	4.01	0.00	0.57	15	0.14
76-78 cm	6.67	0.00	4.67	11.00	1.33	0.00	0.00	0.00	0.00	2.67	0.00	0.33	13	0.20
80-82 cm	5.49	0.00	6.71	7.32	0.00	0.00	0.00	0.00	2.13	4.88	0.00	0.61	13	0.22
84-86 cm	2.90	0.00	0.32	15.16	0.00	0.00	0.00	0.00	0.97	1.94	0.00	0.00	12	0.21
88-90 cm	8.81	0.00	5.08	7.80	0.00	0.00	0.00	0.00	1.36	2.71	0.00	0.34	14	0.22
92-94 cm	19.08	0.99	2.96	11.84	1.32	0.00	0.00	0.00	0.00	0.00	0.00	0.00	13	0.14
96-98 cm	8.78	0.00	2.27	10.20	1.70	0.00	1.42	0.00	3.40	0.00	0.00	0.00	13	0.14
100-102 cm	15.41	0.00	4.26	7.87	0.33	0.00	0.66	0.00	1.97	0.66	0.00	0.00	13	0.17
104-106 cm	12.38	0.00	2.22	13.97	0.95	0.32	0.00	0.00	0.00	0.00	0.00	0.00	14	0.13
108-110 cm	10.14	0.34	5.74	7.77	0.00	0.00	0.00	0.00	2.36	3.38	0.00	0.68	15	0.14
112-114 cm	9.84	0.00	2.93	10.11	2.13	0.00	0.00	0.00	1.33	0.80	0.00	0.53	17	0.13
116-118 cm	16.32	1.04	2.08	4.86	0.35	0.00	0.00	0.00	0.35	1.04	0.00	0.00	13	0.18
120-122 cm	20.93	0.00	1.66	5.65	1.00	0.00	0.00	0.00	0.33	1.00	1.33	0.00	13	0.18
124-126 cm	0.00	2.72	2.42	3.93	0.00	0.00	0.00	0.30	0.91	3.63	0.00	0.00	13	0.30
128-130 cm	0.00	0.29	2.35	3.23	0.29	0.00	0.00	0.00	0.59	4.11	0.00	0.59	14	0.26
132-134 cm	11.11	0.00	2.07	6.20	0.52	0.00	0.00	0.00	3.36	2.07	0.00	0.00	14	0.17
136-138 cm	9.83	1.40	2.53	9.55	1.69	0.00	0.00	0.00	1.12	2.53	0.00	1.40	18	0.12
140-142 cm	2.58	0.32	4.19	5.48	0.00	0.00	0.65	0.00	0.65	2.58	0.00	2.58	14	0.21

Back to OFR 97-460