摘要
根据典型剖面研究,该套浊积岩系由一套轻微区域变质的中细砂岩、粉砂岩、粉砂质泥岩组成,局部夹碳酸盐岩。剖面结构多种粒度不同的碎屑岩在宏观上有规律地交替出现形成韵律层系,单个韵律层系厚度一般20～60cm。此浊积岩具明显的粒序性、发育较清楚的平行纹层及扰动层理,具较典型的浊积岩特点,鲍玛层序发育。
According to the study on the typical section, the turbidite series is composed of a set of medium-fine sandstone, siltstone and silty mudstone with partly intercalated carbonate rocks. Macroscopically, the clastic rocks with different grains occurred alternatively with a regularity and formed a rhythmic succession. A single rhythmic succession is general 20-60cm in thickness. This kind of turbidite shows obvious graded regularity with a clear well-developed parallel lamination and disturbed bedding, having the typical characteristics of turbidite with a developed Bouma sequence.
出处
《吉林地质》
2003年第4期1-3,63,共4页
Jilin Geology
关键词
浊积岩
二叠纪
延边汪清
turbidite
Permian
Wangqing of Yanbian area
