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对太平洋 １７８７ 柱沉积物样品进行了碎屑组分、分布、来源及组合的研究。结果表明，沉积物中的碎屑组分主要是生物来源、海洋自生来源和岩源。重组分以铁锰微结核、生物磷灰石、褐铁矿、磁铁矿、辉石类为主， 轻组分主要是生物蛋白石 （放射虫、海绵骨针等硅质生物壳体或骨骼）、粘土团集物和火山玻璃。根据各碎屑组分在整个柱芯的分布特点及其组合类型的不同， 把 １７８７ 柱分为 ６ 层， 并大致反映沉积环境的氧化还原条件、火山活动特点及底层流活动状况。研究结果能与磁性地层资料、地球化学资料和沉积物构造相互印证， 表明碎屑组分及其组合研究能为恢复沉积环境提供矿物学证据。
Detrital fractions, distribution, sources and combinations of the 1787 sediment samples from the Pacific Ocean were studied. The results show that the detrital components of sediments are mainly biological sources, marine authigenic sources and source rocks. The heavy components are mainly FeMn, biological apatite, limonite, magnetite and pyroxene. The major components of the heavy components are biological opal (siliceous biological shells or bones such as radioactive insects and sponge spicules) , Clay aggregates and volcanic glass. According to the characteristics of the distribution of all the detritus components in the entire column core and their combination types, the 1787 column is divided into six layers, and generally reflects the redox conditions of depositional environment, volcanic activity characteristics and the underlying flow activity. The results of this study can be verified with the data of magnetic stratum, geochemical data and sediment structure, indicating that the detrital components and their combination studies can provide mineralogical evidence for the restoration of sedimentary environment.