Table 3. Composition of headspace gases (ppm) from Site 1004.																														



Site	Hole	Core	Type	Section	Depth	C1 	C2	C3	i C4	n C4	i C5	n C5	i C6	n C6	C1/C2	C1/C2 +	H2S													
					mbsf	 	 	 	 	ppm-v	 	 	 	 			ppm-v													

1004	A	1	H	3	3	4	 	 			 			 	 	 								CORELOG lookup criteria						
1004	A	2	H	5	11.3	3	 	 			 			 	 	 								Site	Hole	Core	Type	Section	Length	Depth
1004	A	3	H	5	20.8	2	 	 			 			 	 	 								###	A	22	X	4		
1004	A	4	H	5	30.3	2	 	 			 			 	 	 														
1004	A	5	H	5	39.8	3	 	 			 			 	 	 														
1004	A	6	H	5	49.3	17	0.3	 			 			 	57	57														
1004	A	7	H	6	60.3	510	2	 			 			 	255	255														
1004	A	8	H	CC	62.3	594	2	 			 			 	297	297	368													
1004	A	9	H	6	74.3	6692	4	1			 			 	1673	1338														
1004	A	10	H	6	83.8	14494	5	1			 			 	2899	2416	21150
1004	A	11	H	5	91.8	20347	6	3	0.6	0.3	0.5	0.6		 	3391	1850	12605
1004	A	12	H	CC	93.3	5038	3	2	 	 	 	 		 	1679	1008	 
1004	A	13	X	CC	102.8	6837	3	1	0.6	0.5	0.7	 		 	2279	1179	 
1004	A	14	X	5	113.5	7459	4	3	1	1	2	0.3		 	1865	660	2031
1004	A	15	X	CC	116.6	13496	5	6	3	2	4	0.5	0.2	0.2	2699	646	 
1004	A	16	X	4	130.5	5484	2	2	0.4	0.3	0.4	0.9	 	 	2742	914	17290
1004	A	17	X	1	135.4	18913	 	3	1	1	1	1	 	 	 	2702	12077
1004	A	18	X	4	149.74	11850	 	1	0.6	0.5	0.7	0.5	 	 	 	3591	6773
1004	A	22	X	4	185.7	1502	 	 	 	 	 	 	 	 	 	 	 

"Notes: Below 62.3 mbsf, gas analysis was performed using the NGA. C1 to C6 headings represent the"																	
"alkanes: methane, ethane, propane, butane, pentane, and hexane. Iso and normal configurations of"																	
"butane, pentane, and hexane are designated with I and n prefixes, respectively. C1/C2 is the"																	
"methane/ethane ratio, C1/C2+ is the methane/(C2 to C6) ratio. H2S is hydrogen sulfide."