火山凝灰岩 meaning in English
cinerite
volcanic fragments
volcanic tuff
Examples
- The local volcanic tuff and the secondary structure mainly control the formation of this ore deposit , which metallogenic principle is relevant to the tectonic movements
雄村矿床成矿主要受到矿区内的火山凝灰岩岩和二级构造来控制。它的成矿机制与构造运动有关。 - 1 . the framework of mesozoic strata in the north margin of the dabie orogenic belt was reestablished according to the discovery of the tuff beds and volcanic debris in zhougongshan and fenghaungtai formations , along with their isotope ages and the correlations of sedimentary facies and heavy minerals
在周公山组中在凤凰台组中发现了火山凝灰岩层利火山岩碎屑，结合同位素年代学研究以及沉积相和重矿物对比，重新厘定了大别造山带北缘中生代地层的格架。