Their original rocks are volcanic rocks, epicontinental clastic sedimentary rocks, and ophiolite of volcanic and island arc tholeiitic series or calcium alkali series.
其原岩岩石类型有火山岩，陆缘碎屑沉积岩，火山、岛弧拉斑系列或钙堿系列火山岩、蛇绿岩等。
The Hongtaiping polymetallic deposit lies in the Permian Marine volcanic rocks, Palaeozoic geosyncline and the transitional belt of the clastic sedimentary rocks in the Yanbian area.
红太平多金属矿床产于延边古生代地槽区二叠系海相火山岩中及其与碎屑沉积岩的过渡带上。
The results indicate that there mainly develop a set of shallow Marine shelf clastic sedimentary rocks and platform carbonate rocks during the Sinian-Lower Paleozoic (Lower Assemblage) period.
结果表明，震旦系-下古生界(下组合)主要为一套浅海陆棚相碎屑岩与台地相碳酸盐岩沉积序列。
Clastic sediments bears much information about the nature of source rocks and their tectonic evolution, which is significant for sedimentary basin analysis.
碎屑沉积物记录着有关源岩性质和构造演化等诸多重要的信息，对于沉积盆地分析和理解区域构造演化都有重要的指示意义。
The intermediate-acid pyro-clastic rock is dominant with a few of intermediate lava and common sedimentary pyroclastic rocks formed in the volcanic intermittent activities in the Qidaogou area.
秋皮沟一带分布一套以中酸性火山碎屑岩为主，夹少量中性熔岩及火山间歇期正常沉积的秋皮沟火山碎屑岩；
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。
The Tongbomiao Formation consists of pyroclastic, volcanic-sedimentary and terrigenous clastic rocks in Beier sag, Hailaer Basin.
海拉尔盆地贝尔凹陷铜钵庙组发育一套火山碎屑岩类、火山-沉积岩类和少量的陆源碎屑岩岩石组合。
On the basis of the field observations and the statistic analysis of thin sections, the author identified the sedimentary environment of clastic rocks from the Nibajiayo section.
本文主要是通过野外的观察和室内岩石薄片的统计分析，来了解尼巴加妖剖面碎屑岩的沉积环境。
On the basis of the field observations and the statistic analysis of thin sections, the author identified the sedimentary environment of clastic rocks from the Nibajiayo section.
本文主要是通过野外的观察和室内岩石薄片的统计分析，来了解尼巴加妖剖面碎屑岩的沉积环境。
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