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- Pyroclastic rocks are a kind of transitional and complex rocks between lavas and sedimentary rocks. 摘要火山碎屑岩是介于溶岩和沈积岩之间的过渡类型岩石，岩类复杂。
- Subaerial volcanic rocks mainly comprise lavas, clastic lava, pyroclastic rocks and sedimentary pyroclastic rocks. 陆上喷发火山岩包括各种熔岩、碎屑熔岩、火山碎屑岩和沉火山碎屑岩；
- Their potentiality of reservoir is too bad to form oil-producing formation, expect for the pyroclastic rocks... 火山岩周围地层由于受烘烤而出现温度异常,影响了周围泥岩中的有机质成熟度。
- Despite of this, the field geology and the character of pyroclastic rocks remain the basis of the petrogenesis of pyroclasic rocks. 尽管这样，野外地质和火山碎屑岩的岩性特徵，仍是火山碎屑岩成因研究的基础。
- The pyroclastic rock fragments comprise quartzite, schist, gneiss, basalt, andesite, rhyolite and quartz. 火成岩的碎块成分主要为石英岩、岩、麻岩、武岩、山岩和流纹岩.
- It is capable of intrusion into adjacent rocks or of extrusion onto the surface as lava or ejected explosively as tephra to form pyroclastic rock. 它有能力入侵到邻近的石块或挤压到表面的熔岩或跳伞爆炸性作为火山灰形成火山碎屑岩。
- The strata strike NE,and its rock association are consisted of pyroclastic sedimentary rock,micrite and pyroclastic rocks,and containts brachiopoda,coral,bryozoan. 时代属于中泥盆世早期,大体相当于艾菲尔阶-吉维特阶,应归属为大民山组。
- The lithology is mainly composed of lava basalt, pyroclastic rock and volcanic sedimentary rock. 其岩性主要为熔岩类玄武岩,火山碎屑岩和火山沉积岩;
- Pengxian copper deposit is hosted by metamorphosed pyroclastic rock and basicintermediate lava. 彭县铜矿床含矿火山岩由各类变质火山碎屑岩及中基性熔岩所组成。
- The ore-bearing beds have a bimodal rock association and exhibit assembly characteristics of pyroclastic rock, orebody and exhalite. 含矿岩系为双峰岩石组合，具有火山碎屑岩-矿体-喷气岩“三位一体”特徵。
- The polymictic breccia in the Qianshan lead-zinc ore district of Anxi County is a suit of volcaniclastic rock,sedimentary pyroclastic rock and pyroclastic sedimentary rock. 安溪铅山铅锌矿区复成分角砾岩为一套火山碎屑岩-沉火山碎屑岩-火山碎屑沉积岩。
- The Hongshijing gold ore deposit, which occurs in volcanic rocks and pyroclastic rocks of the Middle and Late Carboniferous, is of the brittle-ductile shear zone type controlled by a rift belt. 红十井金矿,产于中、上石炭统基性火山岩和火山碎屑岩中,为受断裂带控制的韧性剪切带型金矿床。
- There is a layer of tuffite reservoir in Erlian oilfield.The log responses of this tuffite reservoir are different from those of normal sedimentary rock and pyroclastic rock. 二连油田某地区有一套沉凝灰岩储层,该储层具有与正常的沉积岩、火山碎屑岩不同的测井响应特征,即高中子、低密度、声波时差无反应。
- Pengxian copper deposit is hosted by metamorphosed pyroclastic rock and basicintermediate lava. This paper deals with minor element and REE geochemistry and genesis of the host rock. 彭县铜矿床含矿火山岩由各类变质火山碎屑岩及中基性熔岩所组成。本文探讨了各类含矿火山岩微量元素及稀土元素地球化学特征，并初步揭示了合矿火山岩的成因。
- The volcano lava, pyroclastic rock and volcanic sedimentary rock are the main lithology of the Carboniferous volcanic reservoir in the middle section of the northwestern margin of Junggar Basin. 准噶尔盆地西北缘中段石炭系火山岩油藏的储层岩性为火山熔岩、火山碎屑岩及火山沉积岩。
- Navigation is difficult on this river because of the hidden rocks. 因为河上有暗礁，所以在这条河上航行很困难。
- On the basis of the past schemes, new classifications of pyroclasts and the petrographic as well as the petrogenetic classification of pyroclastic rocks are proposed in this paper. 中国学者提出的火山碎屑岩分类时间较早，有自己特色，在一定的范围得到了应用。
- The storm cast the little rowboat on the rocks. 风暴把这条小划艇抛到岩石上。
- The stricken tanker began to break up on the rocks. 油轮被击中后撞上礁石,毁了。
- These rocks are awash at high tide. 这些礁石在涨潮时被海水淹没。
