摘要
沉积物中有机质(OM)赋存及稳定性问题受到关注,主要是因为其直接影响到大气中CO2的平衡与全球气候变化。该文介绍了沉积物的不同颗粒中有机质的赋存机制,通过筛洗法和沉降法对现代沉积物颗粒分级,探讨二者间的相互关系以及有机质富集的差异性,进一步探讨有机质的保存和演化以及与碳循环的关系。
The preservation and stability of organic matters （OM） in sediments have direct impact on the balance of CO2 in the atmosphere and global climate change. This article describes the preservation mechanism of organic matters in the sediments of different grain size. Based on of the interrelationship between grain size and the preservation potential of organic matters, the relationship between the carbon cycle and the preservation potential of organic matter or the grain size is also discussed.
出处
《海洋地质与第四纪地质》
CAS
CSCD
北大核心
2010年第6期141-148,共8页
Marine Geology & Quaternary Geology
基金
国家自然科学基金项目(40872089,41072089)
同济大学海洋地质国家重点实验室项目(MG200902)
关键词
沉积物
颗粒分级
有机质赋存
碳循环
sediment
classification
the preservation of organic matter
carbon cycle
