A lipid biomarker investigation of the sources and distribution of organic matter in river-influenced shelf sediments of NE Brazil

Renato S. Carreira,Ana Cecília R. de Albergaria-Barbosa, Maria de Lara P. M. Arguelho,Carlos A. B. Garcia

Organic Geochemistry（2021）

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摘要

•Organic matter (OM) in sediments from the NE Brazilian shelf was characterized.•Mud depocenters accumulated OM in a carbonate shelf.•Export of OM by the major local river limited by dam construction.•Smaller rivers contributed mangrove-derived OM to the inner shelf.

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关键词

Sergipe-Alagoas continental shelf,Organic matter,Molecular markers,Sterols,n-Alcohols,Taraxerol

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