查询词典 volcanic bomb

If the volcanic clasts were deposited on volcanic slope and/or fluvial plain, they would occur in the 4 faceis mentioned above or in alluvial fan and braid stream.

与火山作用有关岩相有4种端元的火山碎屑岩相：弹射坠落爆发空落相、喷射降落爆发空落相、热碎屑流相和热基浪相。

It was floruit of volcanic activity in middle Caledonian between 446 Ma and 440 Ma. Mass volcanic rock was squirted, and ore bearing magma was risen by tectonic fissure, then formed a large-scale valuable polymetallic sulfide orefield.

随着构造岩浆活动的继续，能量的积聚，458.99Ma岩浆熔岩涌出地表，揭开了本区岩浆火山活动事件的序幕。446Ma～440Ma，是本区火山活动全盛时期，在本区大范围内形成有价值的多金属硫化物矿床。

Lithological characterized by pyroclastic rocks interbedded with sedimentary rocks, with a few volcanic rocks.(2) The sedimentary facies: include normal fluvial, swamp, littoral and shallow lakes, as well as fallout facies of pyroclastic sediments, volcanic lahar facies, pyroclastic alluvial facies and pyroclastic fluvial facies (different from normal alluvial and fluvial facies).

1岩性——以火山碎屑岩、火山碎屑沉积岩和陆源碎屑沉积岩互层为特征，亦夹有少量火山岩；(2)沉积相类型——包括陆源碎屑沉积的河流相、沼泽相、滨浅湖相和火山碎屑沉积的空落相、火山泥石流相、火山碎屑冲积扇相和火山碎屑河流相(与陆源碎屑的冲积扇相和河流相不同)。

The SiO〓 and K〓O contents of volcanic rock increase with time, and the series of volcanic rock develops from the transition between alkaline series and calc-alkaline series to calc-alkaline series.

随时代变新，火山岩的SiO〓和K〓O含量增加，TiO〓含量适中，变化不大；岩石系列由碱性与钙碱性过渡的系列向钙碱性系列演化。

S o the fires to make containers from the volcanic clay must be hotter, they toughs use form than those used for non-volcanic clay.

用火山粘土来制造容器的烧制温度必须比非火山粘土的烧制温度要高很多，其温度有可能要达到 1400 ℃。

This paper expatiates on the hazards of volcanic falling tephra, and demonstrates the pratical importance of making program for forecasting the risk of volcanic falling tephra.

简述了火山空降碎屑灾害的危害性，指出研制火山空降碎屑灾害预测软件包的实际意义。

The main deposit type will be volcanic secondary volcanic gold deposit and porphyry copper/molybdenum deposit.

主攻矿床类型为火山—次火山岩型金矿和斑岩型铜钼矿。

The continental volcanic-, subvolcanic rock-type Ag deposit s are the most important silver mining industry type, and they mostly occur in the areas where continental volcanic rocks are widespread at the margins of continental plates.

银是我国的紧缺矿种，也是全世界最走俏的金属商品，世界各国都在积极寻找新的银矿床。

The relationships between large igneous rock province, mantle plume and petroleum show that there is a low velocity-high conductive layer of mid-crust in the basin and this layer is the main source of oil and gas. Weathered granites and volcanic rocks are the best reservoir beds for hydrocarbon accumulation and the faults are the main migration pathway. It is suggested that granite and volcanic reservoirs be the future exploration targets.

通过研究花岗岩和火山岩油气藏的形成模式，指出大火成岩省、地幔柱与油气的关系表明盆地中地壳的低速－高导层可能是油气的主要来源，而花岗岩、火山岩的风化壳是油气成藏的最佳储集层，断裂则是其最主要的运移通道，花岗岩和火山岩油气藏将是未来勘探的重要目标。

Making use of petrochemical analysis and petrography,Werecover ancient rock's construction on the Archaean Era,Through the practice,We find bedrock consists of a set of neutrality and basis volcanic rock ,volcanoclastic rock ,deposition rock and partial volcanic rock with acidity.

利用岩石化学分析法并结合岩相学等特点将太古宙变质岩进行了原岩建造恢复，认为太古宙原岩为一套中、基性火山岩、火山碎屑岩和沉积岩，局部夹酸性火山岩建造。

We got alerted a couple of times while we were down south that HETs were on the way to bring us back up north because things were going to go hot again, but it was just rumors.

南下的途中我们不只一次得到警告说重型装备运输车将拉着我们重新北上，因为局势正在变得重新紧张起来，但这只是谣传。

It's the one where they find the ghost in the salt mine.

这一集是演他们在盐矿找到鬼