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近二十年来,不少作者对大洋沉积物中的粘土矿物做了大量的研究工作,特别是对大洋粘土矿物的分布特征研究得更为详细,提出了一些重要的观点,所谓大洋粘土矿物分布是按纬度分带的观点就是其中一例。本文将根据西赤道太平洋(150°E—165°W,25°N—15°S)30余个表层沉积样和部分岩芯样的粘土矿物分析,着重讨论该区粘土矿物的分布特征;同时,对本区蒙脱石的形成机理及其地质意义作简要说明。
In recent twenty years, many authors have done a great deal of research on clay minerals in oceanic sediments. In particular, the study on the distribution characteristics of oceanic clay minerals has been more detailed and some important points have been put forward. The so-called oceanic clay mineral distribution One example is the concept of banding by latitude. Based on the analysis of more than 30 surface sedimentary samples and some core-like clay minerals in the western equatorial Pacific (150 ° E-165 ° W, 25 ° N-15 ° S), the distribution of clay minerals in this area will be discussed. , The formation of montmorillonite in this area and its geological significance of a brief description.