【摘要】 <正> 有机粘土复合体是有机物与粘土(或粘土矿物)相互作用形成的化学键合产物.其键合方式主要有:1.正电荷有机分子与粘土矿物表面起平衡作用的阳离子发生阳离子交换作用;2.偶极有机分子和阴离子有机物与粘土矿物表面的阳离子水化壳的水分子结合(或称水桥结合);3.带羟基阴离子交换粘土矿物八面体中Al、Fe配位的羟基(OH),即配位基交换.这种反应大多在水体系中进行.因此,这种复合体在地表和海洋沉积物中广泛发育.如何研究海洋沉积物中的有机粘土复合体及其意义,是海洋地质科学所关注的新课题.本文试图通过东海大陆架和南海北部湾有关站位的沉积物样品(图1)有机粘土复合体的研究更多还原

【Abstract】 Organoclay chemistry is a branch of chemistry, which deals with the proper-ties, formation and transformaties of organoclay complexes. It closely contacts with inorganic chemistry.Organoclay complex is bonded matter formed during the reaction between organic substances and clay. It widely exists in marine sediments.We have studied some samples from the continental shelf of the East China Sea. By means of organoclay chemistry we determined the types of organic ma-tters, contents of elements, and electrochemical properties of clay. Organoclay complexes are closely related to the formation of petroleum, accumulation and removement of metallic elements, and distribution of sediments on the continental shelf of the East China Sea.In a word, the importance of organoclay complexes can easily be seen in the study of petroleum origin and mettallogeny as well as the sedimentation of continental shelf sediments.更多还原