Isotopic composition of carbon in organic matter of sediments and particulate matter from the Northwest Pacific

A study was made of isotopic composition of carbon in lipids found in three samples of separate particulates and in eight bottom sediment samples collected in a from the Simushir Island towards the open Pacific Ocean. Average d13C of lipids from particulates was 2.3 per mil lower than one of sedimen...

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Bibliographic Details
Main Authors: Shadsky, I P, Romankevich, Evgeny A, Grinchenko, YuI
Format: Dataset
Language:English
Published: PANGAEA 1982
Subjects:
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.755482
https://doi.org/10.1594/PANGAEA.755482
Description
Summary:A study was made of isotopic composition of carbon in lipids found in three samples of separate particulates and in eight bottom sediment samples collected in a from the Simushir Island towards the open Pacific Ocean. Average d13C of lipids from particulates was 2.3 per mil lower than one of sediments. Humic acids from sediments are the most isotopically heavy fraction (d13C = -21.2 per mil). Isotopic composition of carbon in lipids depended on their total content in samples and on composition of sediments. Formation of isotopically heavy lipids in the surface layer of sediments may be associated with biogeochemical resynthesis of humic acids.