Volcanic caves mainly are lava tube type?pyrodastic type cave and volcanic-intrusive cave,with different genetic mechanism and high value of tourism.
火山洞穴主要是指火山熔岩型洞穴 ,除此之外 ,还有构造 -差异风化洞穴和火山侵入岩崩塌堆叠型洞穴。
It is consisted of basalt lava (including massive basalt,porphyritic basalt,and amygdaloidal basalt),py- roclastic-lava,volcanic breccia and tuff.
对中坝址出露地层进行分析,主要为峨眉山玄武岩系第三到第六岩性段,由火山熔岩类、火山碎屑熔岩类、火山碎屑岩类和沉积火山碎屑岩类所组成。
Ten series of aromatic hydrocarbon compounds including bipheny1,naphthalene,phenanthrene,anthracene,retene,chrysene,benzoanthracene,dibenzofuran,fluorene,dibenzothiophene series from seven lacustrine mudstone samples and three swamp coal samples,as well as five crude samples of the Triassic and the Jurassic in Kuqa Depression were analyzed with GC?MS.
分析了塔里木盆地库车坳陷三叠系、侏罗系 7个湖相泥岩和 3个煤岩以及 5个陆相原油样品中的萘、联苯、氧芴、芴、二笨并噻吩、菲、蒽、惹烯、和苯并蒽系列 10种重要芳烃化合物。
The north-north-west directional faults vertical to the sandstone elongation direction provided the effective lateral plugging condition,whereas many lacustrine mudstones formed during water invasion stage provided the good direct cap-rocks.
三角洲前缘相带中砂岩、泥岩地层交互发育 ,控制着岩性油藏总体含油范围 ;与砂体分布方向近于垂直相交的北北西向断层为岩性成藏提供了有效的侧向封堵条件 ;湖侵过程中形成的多套湖相泥岩提供了重要的直接盖层 ,是形成大面积含油的必要条件。
a stream of lava
熔岩浆,2. 火山岩
The molten lava ran down the mountain.
熔岩从山上流下来。
lava ejected from a volcano
从火山喷出的熔岩.
The hot lava overspread the mountainside.
赤热的熔岩布满山腰。
Europa must have a molten core
其核心部分必定是熔岩，
The volcano ejected lava and ashes .
火山喷出熔岩和灰。
Lava issuing from the brim of the crater.
从火山口流出的熔岩
The volcano spouted lava.
那座火山喷发熔岩。
An active volcano vomits forth smoke and lava.
活火山喷出烟雾和熔岩。
Lava issued from the volcano.
熔岩从火山口流出来。
The volcano vomited flames and molten rock.
火山喷出了火焰和熔岩。
The forcing of molten rock into an earlier formation.
侵入熔岩对早先形成岩石的直接进入
To thrust(molten rock) into preexisting rock.
侵入（熔岩）侵入已经存在的岩石中
To cause(molten lava)to pour forth from a volcanic vent.
使（岩浆等）喷出使（熔岩）流出火山口
The melted rock may keep on rising and pour out as lava.
熔岩持续上升、喷射，变成火山岩。
There are infiltration center on lava and agglomerates.
在熔岩或集块岩上有渗漏中心存在。
The rock formed by the cooling and solidifying of molten rock.
熔岩融化的岩石冷却凝固后形成的岩石
Sadly, hundreds of houses caught fire when the lava reached them.
很不幸，大量的房屋在熔岩到达时起火。