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关于东海现代沉积物中的海绿石,前人曾有过报道,但都限于一般性的描述。近年来我们对东海表层沉积物中的海绿石进行了较为系统的研究,工作范围为东经121°—129°,北纬26°30′—32°00′,样品233个。分别进行了镜下鉴定、透射电镜和扫描电镜观察,并以多晶X-射线衍射法,化学全分析、差热分析、红外吸收光谱和电子探针等方法进行较系统的矿物学研究。本文就东海表层沉积物中海绿石的矿物学特征,产状及分布进行阐述,并对其成因作了初步的探讨。
There have been reports of glauconite in modern sediments in the East China Sea, but they are all limited to the general description. In recent years, we have made a systematic study on the glauconite in the surface sediments of the East China Sea. The scope of work ranges from 121 ° -129 ° East longitude and 26 ° 30’-32 ° 00 ° North latitude with 233 samples. Microscopic identification, transmission electron microscopy (TEM) and scanning electron microscopy (TEM) were used to investigate the mineralogy of the samples. Polymorphic X-ray diffraction, chemical analysis, differential thermal analysis, infrared absorption spectroscopy and electron probe were used to systematically study the mineralogy. In this paper, the mineralogical characteristics, occurrence and distribution of glauconite in the surface sediments of the East China Sea are expounded, and their causes are discussed preliminarily.