Table 16. Rock-Eval analysis of sediment from Site 997.

Core, section, interval (cm)	Depth (mbsf)	Tmax	S1	S2	S3	PI	HI	OI

164-997A-
3H-5, 49-50	18.89	402	0.22	0.83	2.26	0.21	92	251
5H-5, 49-50	37.89	314	0.22	0.77	1.34	0.22	102	178
7H-2, 50-51	52.40	411	0.31	0.99	2.23	0.24	72	163
11H-3, 70-71	84.10	422	0.10	0.83	1.86	0.11	68	153
13H-5, 79-80	105.27	427	0.13	1.45	2.02	0.08	105	146
14H-5, 50-51	114.23	408	0.19	1.33	2.07	0.12	102	159
16H-2, 50-51	129.90	423	0.03	0.52	1.65	0.06	46	147
19H-5, 50-51	153.73	421	0.09	1.10	1.65	0.08	91	137
22X-5, 50-51	178.72	424	0.11	1.39	1.84	0.07	95	126
30X-1, 60-61	232.90	425	0.09	1.82	1.81	0.05	78	77
34X-3, 39-40	264.42	425	0.06	1.29	2.06	0.04	94	150
35X-5, 50-51	275.95	430	0.07	1.68	2.04	0.04	103	125
37X-2, 40-41	290.80	421	0.06	1.51	2.77	0.04	102	188
39X-3, 70-71	311.80	431	0.14	2.37	1.89	0.06	152	121
44X-6, 39-40	354.62	430	0.04	1.18	1.59	0.03	94	127
48X-5, 39-40	391.69	418	0.18	2.17	2.23	0.08	150	154
54X-5, 39-40	429.77	427	0.10	1.22	1.52	0.08	105	131

Notes:Tmax = temperature (C) at which the maximum amount of hydrocarbons are generated from the kerogen during pyrolysis;
S1 = quantity of free hydrocarbons in the rock samples, in mg/g rock; 
S2 = quantity of hydrocarbons produced by kerogen cracking, in mg/g rock; S3 = quantity of organic CO2 produced during pyrolysis of the rock, in mg/g rock;  
PI = production index, calculated as S1/S1+S2; HI = hydrogen index, calculated as S2/TOC; OI = oxygen index, calculated as S3/TOC.