Volcanic rocks compose with clastic rocks together, form sedimentary-eruption rhythm or cycle.
火山岩与碎屑岩共生，构成沉积—喷发韵律或沉积—喷发旋回。
Coal-bearing strata in southeast Shanxi consist of carbonate rocks lime-stone, clastic rocks and coal.
石炭-二叠系含煤岩系，由灰岩、碎屑岩和煤共同组成。
The Neogene strata in Longchuan basin consist mainly of the fine grained clastic rocks containing abundant sporopollen fossils.
陇川盆地新第三纪地层主要由细粒碎屑岩组成，富含孢粉化石。
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