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upper cambrian 【地質學;地理學】后期寒武紀。

upper case

Micritic dolostone occurs widely in the middle and upper cambrian and is yellowish brown and brickcolored red , in which parallel laminae , bird ' s - eyes and mud - cracks are developed 準同生白云巖廣泛出現于中上寒武統,巖石呈土黃色、磚紅色,具紋層、烏眼、乾裂構造。

The clastic rocks distribute mainly in the lower cambrian and the carbonate rocks in the upper part of the lower cambrian and middle and upper cambrian 碎屑巖主要分布在下寒武統;下寒武統上部和中、上寒武統主要由碳酸鹽巖構成。

This paper describes characteristic succession of dolomitic limestone tempestites from middle - upper cambrian in huangshi , eastern hubei province 摘要鄂東黃石地區中上寒武統中下部發育一套典型的白云質風暴巖。