Table 8. Carbonate, carbon, nitrogen, and sulfur contents in sediments from Sites 991, 992, and 993.

Core, section, interval (cm)	Depth (mbsf)	Inorganic carbon (wt%)	CaCO3 (wt%)	Organic carbon (wt%)	Total nitrogen (wt%)	C/N	Total sulfur (wt%)

164-991A-
1H-1, 5-6	0.05	4.56 	38.0 	1.11 	0.12 	9	0.14 
1H-2, 108-109	2.58	6.81 	56.7 	NA	NA	NA	NA
1H-6, 20-21	7.70	2.22 	18.5 	0.32 	0.05 	6	0.74 
3H-1, 80-81	19.40	2.17 	18.1 	NA	NA	NA	NA
3H-2, 67-68	20.77	6.24 	52.0 	NA	NA	NA	NA
3H-3, 29-30	21.89	4.52 	37.7 	1.35 	0.12 	11	1.14 
3H-5, 89-90	25.49	4.50 	37.5 	NA	NA	NA	NA
3H-5, 90-91	25.50	6.19 	51.6 	NA	NA	NA	NA
3H-6, 86-87	26.96	1.65 	13.7 	1.51 	0.13 	12	1.29 
4H-2, 59-60	30.19	2.00 	16.7 	NA	NA	NA	NA
4H-4, 112-113	33.72	1.30 	10.8 	NA	NA	NA	NA
5H-1, 146-147	39.06	2.07 	17.2 	NA	NA	NA	NA
5H-6, 120-121	46.30	1.14 	9.5 	0.83 	0.10 	9	3.85 
5H-7, 2-3	46.62	1.30 	10.8 	NA	NA	NA	NA
6H-1, 40-41	47.50	4.94 	41.2 	NA	NA	NA	NA
6H-1, 54-55	47.64	5.09 	42.4 	1.22 	0.11 	11	1.19 
6H-1, 58-59	47.68	9.26 	77.1 	NA	NA	NA	NA
6H-1, 80-81	47.90	7.18 	59.8 	NA	NA	NA	NA
6H-3, 10-11	50.20	8.16 	68.0 	NA	NA	NA	NA
6H-3, 80-81	50.90	5.00 	41.7 	NA	NA	NA	NA
6H-4, 23-24	51.83	0.25 	2.1 	1.76 	0.15 	12	1.60 
6H-7, 48-49	56.58	1.07 	8.9 	2.50 	0.19 	13	2.11 

164-992A-
1H-1, 26-27	0.26	8.03 	66.9 	NA	NA	NA	NA
1H-1, 30-31	0.30	2.43 	20.2 	NA	NA	NA	NA
1H-2, 56-57	2.06	3.41 	28.4 	0.56 	0.07 	8	0.50 
2H-2, 61-62	4.91	2.95 	24.6 	0.61 	0.06 	11	0.37 
2H-6, 59-60	10.89	6.82 	56.8 	NA	NA	NA	NA
3H-3, 84-85	16.14	2.06 	17.2 	NA	NA	NA	NA
3H-6, 90-91	20.70	1.29 	10.7 	2.59 	0.19 	13	2.35 
4H-2, 60-61	23.90	1.50 	12.5 	2.06 	0.16 	13	1.84 
4H-5, 60-61	28.40	2.07 	17.2 	2.14 	0.16 	13	1.84 
5H-2, 70-71	33.50	1.29 	10.7 	NA	NA	NA	NA
5H-4, 70-71	36.50	0.92 	7.7 	2.25 	0.19 	12	2.15 
6H-1, 50-51	41.30	8.15 	67.9 	NA	NA	NA	NA
6H-6, 70-71	49.00	2.04 	17.0 	2.59 	0.20 	13	2.01 

164-993A-
2X-1, 10-11	2.00	2.43 	20.2 	1.41 	0.14 	10	2.28 
2X-5, 90-91	8.80	2.79 	23.2 	NA	NA	NA	NA
3X-7, 26-27	23.06	2.36 	19.7 	1.78 	0.16 	11	1.85 
4X-3, 132-133	27.32	2.24 	18.7 	NA	NA	NA	NA
4X-5, 20-21	29.20	1.76 	14.7 	1.88 	0.18 	10	2.04 
5X-3, 132-133	36.92	1.80 	15.0 	NA	NA	NA	NA
5X-6, 21-22	40.31	1.56 	13.0 	2.09 	0.20 	11	1.20 
6X-1, 70-71	42.90	2.16 	18.0 	NA	NA	NA	NA
6X-2, 70-71	44.40	1.36 	11.3 	1.77 	0.18 	10	1.11 
6X-3, 126-127	46.46	2.14 	17.8 	1.57 	0.19 	8	1.34 

Note: NA = not analyzed.