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- W2001077369 abstract "Perylene, a five-ring nuclear polycyclic aromatic hydrocarbon (PAH), has a different distribution pattern from anthropogenic PAHs. Its source, however, remains obscure, limiting its application as an environ- mental indicator. Here we examine perylene in the upper 85 m sediments of the ODP Hole 1202B from the southern Okinawa Trough. Over the past 20,000 years, the mass accumulation rate of perylene is sub- stantially higher in the last deglaciation than the Holocene and last glacial maximum. Perylene presents a strong correlation with C31 n-alkane (r = 0.55; p < 0.001), a biomarker for terrigenous organic matter, and a weak correlation with C37:2 alkenone (r = � 0.04; p = 0.23), a biomarker for marine organic matter. The mean d 13 C value of perylene (� 22.8‰ ± 0.6‰) is substantially higher than that of long chain n-alkanes (� 30.7 ± 0.4‰), but close to that of fluvial organic matter in adjacent areas (� 24.0‰ to � 25.0‰). Our results strongly suggest that the perylene is of a terrigenous origin likely from soil fungi, and may be a useful tracer for soil organic carbon in marine environments." @default.
- W2001077369 created "2016-06-24" @default.
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- W2001077369 date "2014-11-01" @default.
- W2001077369 modified "2023-10-17" @default.
- W2001077369 title "Origin, distribution and environmental significance of perylene in Okinawa Trough since last glaciation maximum" @default.
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- W2001077369 doi "https://doi.org/10.1016/j.orggeochem.2014.09.008" @default.
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