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Determination and geological implication of O-Si isotope of the sediment core in the CC area, the Pacific Ocean

机译:太平洋CC区沉积物芯中O-Si同位素的测定及其地质意义

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摘要

ONCE ocean floor was below the calcite compensation depth (CCD), deeper than 5 000 m, it was widely covered with siliceous ooze or abyssal clay without abyssoconite. The samples of sediment core used in the present research were collected at No. 1787station during DY85-04 cruise and are mostly of siliceous ooze or abyssal clay. Therefore, traditional and well-considered stable isotopic study using foraminifera has to be given up. Instead, stable isotopic composition of O-Si of biogenic silica shell,applied to assessment of paleo-environment, is discussed in the note.
机译:ONCE海床低于方解石补偿深度(CCD),深度超过5 000 m,它被硅质软泥或深渊粘土广泛覆盖,而没有深渊岩。本研究中使用的沉积物岩心样本是在DY85-04航行期间在1787stationstation上采集的,大部分为硅质软泥或深渊粘土。因此,必须放弃使用有孔虫的传统且经过深思熟虑的稳定同位素研究。而是在注释中讨论了生物硅壳中O-Si的稳定同位素组成,该同位素组成适用于古环境评估。

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