terrigenous organic matter

C/ N ratio in sediments, indicating the mixed source, reflects the possible influence of terrigenous organic matter input on the surface productivity.

沉积物的C/N比值反映了有机碳的混合来源，说明该地区表层生产力可能受陆源营养物质输入的影响。

Plant and soil samples collected from the Yangtze River ( Changjiang) drainage basin were analyzed for carbon content, stable carbon isotopes and lignin phenol content to investigate the characteristics of terrigenous organic matter.

为探讨长江流域中植物和土壤的木质素特征，应用碱性氧化铜分解-气相色谱检测法对长江流域的典型植物和土壤样品中的木质素进行了测定分析。

Sedimentary environment and the abundance of terrigenous substance and organic matter affects the concentrations of Na and Mn differently.

沉积环境、陆源碎屑以及有机质的含量不同程度地影响Na、Mn分布。

But high TOC and C/ N ratio during MIS 5.1, 3.3 to 3.2 and the Holocene reflect that the terrigenous organic matter input increased during interglacial periods.

MIS5.1,3.3~3.2期和全新世高的有机碳含量和C/N比值反映间冰期陆源有机物质输入量的增加。

The oil sand bitumen was formed by the biologically degraded crude oil which originates from terrigenous organic matter.

结果表明，其为陆源湖相有机质生成的原油经生物氧化降解形成的。