平邑盆地下第三系官中段核形石较为发育，类型多样。
Many types of oncoids are well developed in the Middle Member of the Guanzhuang Formation of Eocene in Pingyi Basin.
结果表明其由核心和叠层石包壳组成，具有核形石特有的结构和构造。
The structure and texture found in these nodules are characteristic of oncolite.
从生物岩的角度提出深海锰结核（锰质核形石）的描述方法及所用术语。
The method and terminology for describing pelagic manganese nodules (oncolites) have been suggested based on their biogenic origin.
核形石颜色以灰色、棕褐色为主，有球状、椭球状、扁球状和不规则状。
Oncolite color with gray and brown, the shape of oncolite is globosity, ellipsoid, oblatus and tuberose.
石制品中有典型的楔形、船底形石核；工具有长身圆头刮削器、雕刻器和锛形器等。
Among them boat or cuneiformed cores and stone tools such as long scrapers with round edges, engravers and adze-shaped blades are found largely.
这些绿帘石呈自形晶，普遍发育熔蚀结构，部分具褐帘石核。
Most of these epidotes are idiomorphic, and they are featured frequently with melting corrosion structure and occasionally with allanite-rich cores.
这些绿帘石呈自形晶，普遍发育熔蚀结构，部分具褐帘石核。
Most of these epidotes are idiomorphic, and they are featured frequently with melting corrosion structure and occasionally with allanite-rich cores.
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