Table 11. Composition of headspace gases at Site 1043.					

"Notes: C1, C2, and C3 represent methane, ethane, and propane, respectively. ND = not determined. ppmv = parts per million by volume."					

"Core, section, interval (cm)"	Depth (mbsf)	C1 (ppmv)	C2 (ppmv)	C3 (ppmv)	C1/C2


170-1043A					
"1H-5, 0-5"	6.03	26	0	0	ND
"2H-5, 0-5"	14.03	81	0	0	ND
"3X-2, 0-5"	18.43	23060	5	0	4612
"4X-2, 0-5"	25.93	25422	6	1	4237
"5X-2, 0-5"	34.93	11009	3	0	3670
"6X-4, 0-5"	47.33	7530	2	0	3765
"7X-5, 0-5"	58.23	4770	2	0	2385
"8X-5, 0-5"	67.63	237615	48	4	4950
"9X-6, 0-5"	78.73	175028	43	3	4070
"10X-3, 0-5"	83.73	106003	15	2	7067
"11X-3, 0-5"	93.33	23069	7	0	3296
"12X-4, 0-5"	104.43	17604	8	0	2201
"13X-2, 0-5"	111.03	23867	15	2	1591
"14X-4, 0-5"	123.73	29387	33	3	891
"15X-1, 0-5"	128.73	29323	31	3	946
"16X-2, 0-5"	139.83	18394	45	6	409
"17X-2, 0-5"	149.43	1185	3	0	395
"18X-2, 0-5"	159.03	1201	3	0	400
"19X-4, 0-5"	171.63	9	0	0	ND
"20X-2, 0-5"	178.13	165	0	0	ND
"21X-4, 0-5"	190.53	89	0	0	ND
"22X-5, 0-5"	201.63	49	0	0	ND
"23X-5, 0-5"	211.23	6	0	0	ND
"24X-4, 0-5"	219.33	19	0	0	ND
"25X-5, 0-5"	230.53	10	0	0	ND
"26X-5, 0-5"	240.13	10	0	0	ND
"27X-5, 05"	249.73	10	0	0	ND
"28X-5, 0-5"	259.33	8	0	0	ND
"29X-5, 0-5"	269.03	10	0	0	ND
"30X-5, 0-5"	278.63	13	0	0	ND