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Seven gas samples obtained from cores taken on DSDP Leg 44 have been analyzed for hydrocarbons in the ethane through pentane range. Table 1 shows the distribution of these hydrocarbon gases. Values are expressed in ppm by volume of the individual hydrocarbon in the total gas. The yields of the heavier hydrocarbon gases were extremely low compared to other areas such as the Black Sea. For example, a Black Sea sample taken at 250 meters corresponding to the same depth as the first sample in Table 2 contained 50 ppm ethane, 5 ppm propane, 2 ppm butane, and 0.7 ppm pentane. Also, a Black Sea sample at 900 meters contained 1000 ppm ethane, 200 ppm propane, 70 ppm butane, and 10 ppm pentane.

Light Hydrocarbons in Sediments of DSDP Leg 44 Holes