There have been several volcanic eruptions this year.

今年火山爆发了好几次。

The place was recently visited by a serious volcanic eruption.

这地方最近发生了一次严重的火山爆发。

The study of petrology, mineralogy and geochemistry suggests that augite latite and augite monzonite are cognate, belonging to the upper and root parts of the volcanic dome respectively.

岩石、矿物地球化学的研究表明，辉石粗安岩与辉石二长岩同源，分别为火山穹窿的上部根部。

In order to determine the time sequence of recent eruption in Tianchi volcano, the TL thermal-stability has been investigated for pumice and sanidine phenocryst within the volcanics.

为厘定天池火山近代喷发的,碱流岩中的浮岩透长石斑晶进行了热释光(TL)信号热稳定性研究。

The volcanogenic deposits hosted in differential yolcanic rock series and cogenetic deposits hosted in undifferential baste volcanic rock series have been divided and studied in this paper.

笔者通过研究，分出了分异火山岩系中的火山成因矿床未分异性火山岩系中的共生矿床，认为前者的金属聚集与岩浆分异有密切关系。

The alabandite and getchellite of hydrothermal origin, cement anatase of alkaline volcanic origin, and the high content of chlorite in coal were fist found in coals.

在西南地区晚二叠世煤中首次发现了热液成因的锰矿锑矿、碱性火山灰成因的胶态锐钛矿陆源碎屑成因的斜绿泥石。

Volcanicity was violent during the Early Carboniferous in Santanghu region.The volcanic rocks consist of basalts,andesites and dacite liparite,with andesites playing the main part.

三塘湖地区早石炭世火山活动强烈，发育以安山岩类为主的玄武岩、安山岩、英安流纹岩的岩石组合。

Zhaocun bentonite deposit oringnated from tuff rich in volcanic hyalocrystalline,which underwent hydrolysis and alteration in Changxing county,Zhejiang province.The deposit has middle scale.

浙江省长兴县赵村膨润土矿是由富含火山玻璃质的凝灰岩原地水解蚀变形成的膨润土矿床,矿床具中型规模。

Regional volcanic strata are the source of placer gold and laterization process is the main stage of formation of placer gold.

区域火山岩地层是砂金的矿源，地表赤红壤化可能是砂金形成的主要阶段。

The present application of the nuclear log to the studies of the volcanic rocks and superpressure metamorphic rocks is outlined.

最后略述当前火成岩超高压变质岩地层研究中核测井的应用。

We do the thermoluminescence research systemly for deep volcanic rocks section, this will possibly demarcate eruptible gyration and evolvment character.

4、巨厚的火山岩剖面进行系统的热释光研究,可能标定其喷发旋回演化特征。

A young silverback mountain gorilla poses on the rim of a volcanic crater with a lake below in the background.

一只尚属幼年的银背大猩猩正站在火山口上，直视镜头，身后是一汪湖水。

Perlite, obsidian and pitchstone are volcanic glass having the same compositions commonly with rhyolite as well as andesite and basalt.

珍珠岩、黑耀岩松脂岩等玻璃质熔岩以酸性为主，中性者也常见。

The islands are volcanic.

这些岛屿是由火山构成的。

Rotorua is known for its volcanic thermal vents creating pools of plopping volcanic mud at the Wai-O-Tapu Thermal Park.

罗托鲁瓦因其在香槟湖地热公园内冒着火山泥的火山地热喷泉而闻名于世。

Kezlag rock formation whose mother rocks are greywacke is basinal deposit, Karakez rock formation's protolith is island arc volcanics.

克孜拉格岩组原岩为杂砂岩，属盆地沉积；卡拉格兹岩组原岩为岛弧火山岩。

The deformation belts are formed by Late Carboniferous rocks, mainly mylonitization volcanic rocks and volcanic clastic sedimentary rocks.

变形带由下石炭统干墩组组成，为一套糜棱岩化火山岩、火山碎屑沉积岩。