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本文以沉积物的粒度类型为基础,结合沉积物的生物、矿物、化学组成的特征,从沉积物的成因观点综合分析,把本区沉积物分为陆源碎屑沉积(含五个沉积物带)、生源-陆源沉积(含三个沉积物带),自生-陆源沉积(含某些自生沉积矿物)和火山-陆源沉积(含某些火山碎屑物)等四种沉积类型,并论述了各类型的特征和相互关系及其空间分布等。
Based on the types of sediment, combined with the characteristics of sediments in biological, mineral and chemical composition, the paper analyzes the origin of sediments comprehensively and divides the sediments into terrigenous clastic sediments (including five sedimentary belts ), Source sediments (including three sedimentary belts), authigenic-terrigenous sediments (including some authigenic sedimentary minerals) and volcano-terrigenous sediments (including some pyroclastic minerals), and discussed Various types of features and their relationships and their spatial distribution.