Hydrothermal petroleum in mineralized mounds at the seabed of Guaymas Basin
摘要：
Petroleum has been dredged from an active hydrothermal mound area in the southern rift of Guaymas Basin, Gulf of California. This organic matter is composed of gasoline-range aliphatic and aromatic hydrocarbons and predominantly residual polar asphaltic material. The aliphatic hydrocarbons of two bitumen samples have very different boiling range and composition. Both samples contain polynuclear aromatic hydrocarbons and olefins, which indicate formation at pyrolytic temperatures. The overall compositional data indicate an origin from biological detritus by thermal alteration and rapid quenching by hydrothermal removal, followed by condensation at the seabed.
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关键词：
Experimental/ Earth composition energy resources oceanic crust petroleum industry sediments terrestrial heat/ hydrothermal petroleum seabed mineralised mounds actively spreading oceanic basin hydrocarbons composition gasoline range aliphatic hydrocarbons oceanic crust hydrocarbons quenching hydrocarbons condensation Earth composition Guaymas Basin active hydrothermal mound area Gulf of California organic matter hydrocarbons residual polar asphaltic material bitumen samples boiling range polynuclear aromatic hydrocarbons olefins pyrolytic temperatures biological detritus thermal alteration hydrothermal removal/ A8610B Fossil and other fuels A9150E Seafloor processes A9150J Marine sedimentation and sediments A9330H North America A9330R Regional seas E3020 Mining, oil drilling and natural gas industries E3624 Fuel processing industry
DOI：
10.1038/295198a0
被引量：
年份：
1982
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