Table 3. Composition of headspace gases (ppm) from Site 1008. 																	

Site	H	Core	T	Sec	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

1008	A	1	H	3	3	3	 										
1008	A	2	H	6	14.1	3	 										
1008	A	3	H	6	23.6	3	 										
1008	A	4	H	6	33.1	3	 										
1008	A	5	H	3	38.1	3	 										
1008	A	6	H	6	47.7	3	 										
1008	A	7	H	6	57.2	5	 										
1008	A	8	H	6	66.7	9	 										
1008	A	9	H	6	76.2	25	0.7								36	36	
1008	A	10	H	1	78.2	20	0.6								33	33	
1008	A	11	X	2	80.2	74	3								25	25	
1008	A	14	X	CC	106.8	4	 										
1008	A	15	X	4	120.6	174	8	1	1		0.1			 	22	17	41

"Notes: C1 through 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 = the methane/ethane ratio and C1/C2+ = the ratio methane/(C2 to C6). H2S =																	
hydrogen sulfide.