lavas
英 [ˈlɑːvəz]
美 [ˈlɑvəz]
n. (火山喷出的)熔岩，岩浆; 火山岩
lava的复数
柯林斯词典
- （火山）熔岩
Lava is the very hot liquid rock that comes out of a volcano.
双语例句
- Pyroclastic rocks are a kind of transitional and complex rocks between lavas and sedimentary rocks.
火山碎屑岩是介于溶岩和沈积岩之间的过渡类型岩石，岩类复杂。 - The discovery of pillow lavas is of great significance in precise determination of the forming age and living environment of the animals and plant fossils.
这些枕状熔岩的发现对于准确确定珍稀动植物化石的形成时代和环境具有重要意义。 - Such lavas also once came from the volcanoes in the Cascade Range in Washington.
在华盛顿州的喀斯喀特山脉的火山也喷出过这样的熔岩。 - Pyrometers, radiometers, bolometers are used for determining heat radiation and have applications for measuring the surface temperature of hot lavas.
红外温度廓线辐射计高温计、辐射计、辐射热测量仪用来测定热辐射和热岩熔的表面温度。 - It is producing Boninite lavas, believed to be among the hottest erupting on Earth in modern times.
而爆发时产生的玻安岩熔岩相信是当今地球上温度最高的熔岩之一。 - On construction treatment measures of bored piles in volcanic lavas
谈溶岩地质条件下钻孔灌注桩的施工处理措施 - The deep-sea eruption of the West Mata volcano is producing what are known as boninite lavas, believed to be among the hottest on Earth.
西马塔火山深海火山喷发是生产什么被称为玻安岩熔岩，相信是地球上最热中。 - Detailed studies of the petrography, petrochemistry and geochemistry, indicate these volcanic rocks have high contents of aluminum and potassium and are intermediate to acid lavas and homoplasmic tufts. Influence of Weak Mudstone Intercalated Layer on Mechanical Properties of Laminated Salt Rock
通过对该组火山岩的岩石学、岩石化学和元素地球化学研究，确认该火山岩为中性。软弱泥岩夹层对层状盐岩体力学特性影响研究 - The higher alkali volcanic lavas are the results of twice cyclic volcanic activities, the grey purple lava dominating in the early cycle and the grey green in the late cycle. The two kinds of lava are similar in mineral aggregate and texture and structure.
偏碱性火山熔岩为两次火山活动旋回产物，早期火山旋回以灰紫色火山熔岩为主，晚期火山旋回以灰绿色火山熔岩为主，二者在矿物或分、结构构造上均相似。 - The lavas mainly include basalt, dolerite, fumarolic, amygdaloidal andesite, trachy-andesite and as well as rhyolite.
火山熔岩类主要包括玄武岩、粗面玄武岩、气孔杏仁状安山岩、粗面安山岩、流纹岩等。 - Platinum-group element ( PGE) data for global arc lavas are very scarce.
全球岛弧火山岩的铂族元素数据非常少。 - A Study on the Middle Proterozoic Pillow Lavas in Yuanqu, Shanxi
山西垣曲中元古代枕状熔岩的研究 - It is composed mainly of harzburgite, basaltic and basalt-andesitic lavas, and a small amount of graywacke and silicalite.
它主要由斜方辉橄岩、玄武质和玄武安山质火山岩及少量杂砂岩和硅质岩组成。 - The lithology of igneous rocks of Daqing area is so complicated that not only basic to acidic lavas were drilled, but also tuffs erupted in different times.
大庆深层火成岩层段岩性复杂，不仅具有从基性到酸性的各种熔岩，还包括不同喷发期次的凝灰岩。 - The volcanic successions consist predominantly of basaltic lavas with subordinate intermediate and acid lavas and pyroclastic rocks.
该火山岩系主要由玄武质熔岩组成，其次还包含有中性和酸性熔岩及火山碎屑岩。 - The characteristics and genetic mechanism of Porphyroclastic lavas in southeastern China
中国东南部碎斑熔岩基本特征及成因机理的探讨 - Niobium-enriched arc basalts are mildly-to highly-alkalic mafic lavas that contain relatively higher amount of high field-strength elements ( HFSE) than normal arc lavas.
富铌的岛弧玄武岩则是中等到高碱的镁铁质熔岩，它们相对于正常的岛弧玄武岩含有较多的高场强元素（HFSE）。 - The major, trace element and isotope geochemical characteristics of the basic lavas of the Kule Lake ophiolite indicate that the basic lavas have a N-MORB affinity, possibly suggesting a small ocean basin environment for them.
本文通过对蛇绿岩基性熔岩的主量、微量和同位素地球化学研究，结果表明库勒湖蛇绿岩具N-MORB特征，推测其形成于小洋盆环境。 - And there are also eruptive lavas ( dominant), and some subvolcanic rocks.
既有喷发熔岩流（主导），也有一些浅源上侵的次火山岩体； - During the earlier stage of evolution, there coexist the two MORB-like and ARC-like lavas, it may be the nature of the magma in back arc basins ( especially in the earlier stage).
同时存在岛弧型和MORB型两种熔岩，可能是弧后盆地（特别是早期扩张弧后盆地）岩浆作用的一个共同属性。 - The third group of volcanic rocks ( VTG-III) consists of highly depleted MORB-type lavas, and is believed to have been generated by partial melting of the depleted mantle wedge in an inter-arc basin.
第三组火山岩形成于弧间盆地，由亏损的地幔楔高度部分熔融形成比N-MORB亏损的的火山岩（异常MORB）。 - For the basic lavas with subduction-type signatures, we can judge whether they are really island-arc or active continental margin basalts by studying Zr contents and Zr/ Y ratios or Zr/ Y-Zr diagram.
对于那些具有消减带信号的基性熔岩，可以根据Zr含量和Zr/Y比值，或利用Zr/Y-Zr图解，判断它们是否真正是岛弧或活动大陆边缘玄武岩。 - Petrographic and geochemical characteristics of lavas reflect the change in style of ex-tension, with typical back-arc basin basic lavas in the north passing southward to arc lavas.
熔岩的岩相学和地球化学特点反映了拉伸方式的改变，北部是典型的弧后盆地基性熔岩，向南则逐渐向岛弧熔岩过渡。 - The predominantly HT alkaline lavas were generated by low degrees of partial melting in the garnet stability field of the mantle source. The chemical variation of the HT lavas is controlled by a clinopyroxene ( Cpx) [ ± olivine ( Ol)] fractionation.
以碱性熔岩为主的HT熔岩是产生于幔源石榴子石稳定区的低度部分熔融，其化学变异受控于单斜辉石（Cpx）[±橄榄石（Ol）]分离作用。 - These results raise the question whether there are true slab-derived melts and whether Nb-enriched arc lavas are due to metasomatism of the mantle wedge by such melts in southern Philippines.
这些结果提出了如下问题：南菲律宾是否存在真正的板片来源的熔体？这里的富铌岛弧熔岩是否起因于地幔楔被这种熔体交代？ - Metavolcanic rocks of Ordovician tectonic terrane mainly make up blueschists, greenschists, lavas and tuffs in the Sunan county.
甘肃肃南县奥陶系构造地体中变质火山岩主要指蓝片岩、绿片岩及熔岩、凝灰岩。 - Komatiites are defined as lavas derived from ultramafic melts ( MgO> 30wt%).
科马提岩仅限于超镁铁质熔融体（Mgo>30wt%）所生成的火山岩。 - Elemental mobility is essentially controlled by stability of their host minerals, which also constrain the geochemical characteristics of arc lavas.
元素的活动/迁移性从本质上受控于其赋存矿物（寄主矿物）的稳定性，这也制约着弧岩浆的地球化学特征。 - Series of physical and chemical changes occur while the subduction of oceanic lithosphere sinking in the deep mantle, and induce the formation of arc lavas.
大洋岩石圈在俯冲带下沉返回地幔深处的同时，伴随着一系列物理和化学变化，并最终诱发弧岩浆的形成。