Through the years, volcanic sand mixed with iron ash to form this black beach on New Zealand's wild, west coast.
火山砂与铁灰经年累月地搀合而成这片地处纽西兰蛮荒西岸的黑色海滩。
Favorable reservoirs may be composed of sandstones, conglomerates basement metamorphic buried hills, and volcanic rocks.
砂岩、砾岩、基底变质岩潜山，火山岩均可形成良好储层。
The integrated stimulation technologies in sand fracturing for the fractured volcanic reservoirs
裂缝性火山岩储层加砂压裂改造的综合配套技术
Diagenesis and It's Comparative Study of Pyroclastic Rock, Dowsonite-Bearing Sandstone and Common Sandstone in Hailaer Basin;
海拉尔盆地火山碎屑岩、含片钠铝石砂岩与普通砂岩的成岩作用及其比较研究
Ferrodomite is the main magnetis carrier in the Cretacous violet sandstone on Fenghuo mountains.
风火山白垩系紫色砂岩样品的矿物学分析结果表明,大部分样品的磁性载体是铁白云石.
vulcanicity (vulcanism)
火山作用,火山活动
The volcano is extinct.
这座火山是座死火山。
The scientific study of volcanoes and volcanic phenomena.
火山学火山和火山现象的科学研究
relating to or produced by or consisting of volcanoes.
关于火山，由火山制造出，或由火山组成。
THE MINERALIZATION LAWS OF THE ALLUVIAL GOLD PLACERS AT ALTAI MOUNTAIN
阿尔泰山冲积型砂金矿的砂金富集规律
volcano spout flame and lava
火山喷出火焰和岩浆
A volcano shoots out flame and rocks.
火山喷出火焰和岩石。
A volcano spouts flame and lava.
火山喷出火焰和岩浆。
The volcano vomited flames and molten rock.
火山喷出了火焰和熔岩。
The eruptions were associated with the development of a number of giant craters (calderas).
随着火山爆发形成了多个大火山口(破火山口)。
volcanic ash and lava build the mountains that we call volcanoes.
火山灰和火山岩在喷射口堆积构成了火山。
the lip of a cup, saucer, crater
杯口、 碟边、 火山口.
volcanic rift zone
【地质】火山断裂带
