Geochemical Characteristics and Genesis of Oil Seepage in Chuanshi Island of Lianjiang County,Fujian Province
This article uses techniques such as group composition,saturated hydrocarbon chromatography,and color quality to study the geochemical characteristics and oil source analysis of the Chuanshidao oil seepage,and compares the oil source with the dark mudstone of the Xiaoxi Formation.Research has shown that the source rock of Chuanshi Island oil seepage asphalt was formed in a weakly reducing sedimentary environment,with poor organic matter types and in a mature evolution stage.It is not significantly related to the potential source rock of the nearby Xiaoxi Formation.It is speculated that the oil seepage may come from a small-scale oil and gas reservoir in the upper layer of a dark mudstone in the Xiaoxi Formation on site,or from a deep Cenozoic oil and gas reservoir in the Taiwan Strait.
Chuanshi islandoil seepageasphaltgeochemical characteristicsXiaoxi FormationLianjiang county of Fujian
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