| 1. | The mine zone is sandwiched between an overlying block of flows, pillow lavas and minor pyroclastics, and underlying agglomerates, tuffs, and more massive diabase bodies .
含矿带夹在上覆的岩流、枕状岩流和少量火山碎屑岩块与下伏的集块岩、凝灰岩和块状辉绿岩体之间。 |
| 2. | Pyroclastic rocks pyroclasts
火山碎屑岩 |
| 3. | 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。 |
| 4. | 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。 |
| 5. | Existence of charcoal fragments in sedimentary basaltic volcanoclastic rock and its implication in geology , in longtan formation of southwesten guizhou
黔西南地区龙潭组玄武质火山碎屑岩中木炭碎屑的存在及地质意义 |
| 6. | 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。 |
| 7. | A great number of lherzolite xenoliths occurs within the volcanic clastics characterized by terrigenous central type eruption at tianyang , jiudouyang and yingfenglin of qingtongyang , of southern leizhou peninsula
摘要雷州半岛南部田洋、九斗洋及青桐洋的英峰岭等陆相中心式喷发的火山碎屑岩中，分布有大量的二辉橄榄岩包体。 |
| 8. | The gold lies the northern of paleovolcanic institution . the main stratum of the mine is arqishan formation of lower - carboniferous series . the annular faults and radial faults of the volcanic mechanism are very development
矿区位于古火山机构的北缘，出露地层为陆相火山岩-火山碎屑岩建造特征的下石炭统阿奇山组，火山机构边缘环状、放射状断裂发育。 |
| 9. | Pe trologists , both at home and abroad have spent a lot of time on the classification of pyroclastic rocks , and successively put forward the classification of pyroclasts , the petrographic and the petrogenetic classification of pyroclasic rocks
长期以来，火山碎屑岩的分类研究受到了国内外学者的重视，先后提出了火山碎屑物、火山碎屑岩岩性和火山碎屑岩成因分类。 |
| 10. | The wall rock of the mine is the third member of aqishan formation , which it is formed by the neutral - acidic volcanic rock and volcanic arenite of calcium - alkala series . the rock is mainly of andesite , quartz andesite , volcanic breccia agglomerate and volcanic breccia
矿床赋矿围岩为阿奇山组第三岩性段钙碱系列的中酸性火山岩-火山碎屑岩，主要岩性为安山岩、英安岩、火山角砾熔岩、火山角砾岩等。 |
