The organic geochemical characteristics of core WP02-1 from Western Pacific and its diagenetic mineralization relationship with elements Fe and Mn

GAO Zheng-lai; YANG Dan; ZHANG Hai-sheng; PAN Jian-ming; NI Jian-yu

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Journal of Marine Sciences ›› 2013, Vol. 31 ›› Issue (2) : 65-71.

The organic geochemical characteristics of core WP02-1 from Western Pacific and its diagenetic mineralization relationship with elements Fe and Mn

GAO Zheng-lai, YANG Dan, ZHANG Hai-sheng, PAN Jian-ming, NI Jian-yu

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Abstract

The total organic carbon, chloroform bitumen “A”, and its compositions ( total alkanes, saturated hydrocarbons, aromatic hydrocarbons, resin and asphalt ) in sedimental core WP02-1 from Western Pacific area were systematically analyzed. Then the nC^-₂₃/nC⁺₂₄ and CPI of n-alkanes,Pr/Ph, Pr/nC₁₇, Ph/nC₁₈ of isoprenoids were discussed. The geochemical characteristics of its original, biomarker and the relationship between organic matter and Fe, Mn were studied. The result showed that the alkanes had close relationship with diagenesis in sediments and the organic matter played an important role in mineralization process of Fe and Mn.

Key words

soluble organic matter / n-alkanes / isoprenoids / organic geochemistry / biomarkers / Fe, Mn elements / diagenetic mineralization / Western Pacific

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GAO Zheng-lai, YANG Dan, ZHANG Hai-sheng, PAN Jian-ming, NI Jian-yu. The organic geochemical characteristics of core WP02-1 from Western Pacific and its diagenetic mineralization relationship with elements Fe and Mn[J]. Journal of Marine Sciences. 2013, 31(2): 65-71

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