Abstract Lipid biomarkers [fatty acids (FAs), sterols and alcohols] and carbon stable isotopes (δ13C values) in surface sediments from 9 cross shelf transects (25–3000 m water depth) from the Campos Basin, SE Brazilian continental margin were analyzed. The aim was to investigate the link between the prevailing regional specific oceanographic conditions (upwelling events, intrusion of cold and nutrient-rich water, low river input) and the nature and distribution of organic matter (OM) in the basin. A general predominance of OM from autochthonous processes, but with a relevant spatial gradient in the quality and quantity of the sedimentary OM, was observed. On the shelf (

中文翻译：

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巴西大陆边缘热带和上升流影响区域（里约热内卢坎波斯盆地）沉积物中的有机质

摘要 分析了来自巴西东南部坎波斯盆地的 9 个交叉陆架横断面（水深 25-3000 米）表层沉积物中的脂质生物标志物 [脂肪酸 (FAs)、甾醇和醇类] 和碳稳定同位素 (δ13C 值)。目的是调查主要的区域特定海洋条件（上升事件、寒冷和富含营养的水的侵入、河流输入量低）与流域内有机物质 (OM) 的性质和分布之间的联系。观察到来自本土过程的 OM 普遍占优势，但在沉积 OM 的质量和数量上具有相关的空间梯度。在架子上 （