喷出岩

喷出岩是一种火成岩，也被称为火山岩，是由火山喷出的岩浆在地表迅速冷却凝固后形成的岩石，由于冷却速度很快，一般喷出岩的结构会形成细粒、隐晶，或形成玻璃质，经常包含有碎屑和斑晶；含有斑晶的称为“某某斑岩”，比如英安斑岩、流纹斑岩等等，岩石中及含有斑晶也含有碎屑，大些的碎屑则称为角砾。

喷出岩由于冷却很快，有时其中气体无法逸出，形成很小的气泡，最典型的如浮岩，由于含气量大，造成比重小，甚至能在水中漂浮。

喷出岩中含硅量低的一般称为玄武岩，含硅量高的为流纹岩，此外硅含量中等的还有安山岩、粗面岩和英安岩等。火山喷出的火山灰和碎屑会形成凝灰岩。其实就是一一对应了超基性，基性，中性，酸性花岗岩岩浆化学成分对应的岩类：蛇绿岩套（辉长岩、辉绿岩等），闪长岩，花岗闪长岩，花岗岩。只是说在成因上一个是喷出岩，一个是潜伏岩。

单词	volcanic rock
释义	volcanic rock 英汉-汉英词典火山岩词组 \| 习惯用语您要查找的是不是： Volcanic rock in Ordovician Period 奥陶纪火山岩 alkaline volcanic rock 碱性火山岩 mafic-ultramafic volcanic rocks 镁铁质 epiclastic volcanic rock 表成碎屑火山岩 acid volcanic rock 酸性火山岩 alkalic volcanic rock 碱性火山岩 basement volcanic rock 基底火山岩 basic volcanic rock 基性火山岩 volcanic rock [岩] 火山岩；火成岩；火山碎屑岩 volcanic rocks 火山岩 quaternary volcanic rocks 第四纪火山岩英语例句库 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。 We do the thermoluminescence research systemly for deep volcanic rocks section, this will possibly demarcate eruptible gyration and evolvment character. 4、对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和演化特征。 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和超高压变质岩地层研究中核测井的应用。 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。 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和未分异基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。声明：以上例句、词性分类均由互联网资源自动生成，未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。原声例句宇宙奥秘 There's no dome of volcanic rocks. 没有火山穹丘。 VOA慢速英语_科技 The tools, made of volcanic rock, were made in a way that is called Oldowan. 这些工具是由火山岩制成的，被称为奥尔德沃文化。 CGTN Beneath the sea, the volcanic rocks formed by sudden cooling offer fertile ground for corals. 海水之下，被冰冷海水刺激的多空隙火山岩为珊瑚提供了绝妙的生息之地。经济学人（汇总） Coincidentally, one of the ingredients of the Pantheon's concrete dome is pumice, another volcanic rock. 巧合的是，万神殿混凝土圆顶的成分之一是浮石，另一种火山岩。 Amazing China 纪录片（视频版） But in the sun, the volcanic rock beneath is exposed, creating a black-and-white volcanic spectacle. 不过在阳光照射下火山岩向阳的一面露出来形成了黑白相间的火山奇观。美国国家公园 During the burst, hot ash and huge pieces of volcanic rock, called pumice, fell on the area. 爆炸期间，炽热的灰烬和巨大的火山岩块-称为浮石，落在该地区。旅行到地球内部 Superheated water laced with precious minerals, gold, silver and iron races up from the volcanic rocks below. 高温的水中携带着贵金属，金、银和铁，它们从下面的火山岩中涌上来。 VOA Special 2018年4月合集 They also found tools made from obsidian, a volcanic rock that can have an extremely sharp edge. 科学家还发现了用黑曜石制成的工具，黑曜石是一种火山岩，其边缘锋利。科学60秒-科学美国人 2020年7月合集 " There's clear evidence from the volcanic rocks of a major excursion happening at about 795,000 years ago." “来自火山岩的明确证据表明，磁极在大约79。5万年前发生过一次大偏移。” CNN 10 学生英语 2017年2月合集 Scientists examine a mineral found in volcanic rock on Mauritius. 科学家检查在毛里求斯火山岩中发现的一种矿物。中文百科喷出岩喷出岩是一种火成岩，也被称为火山岩，是由火山喷出的岩浆在地表迅速冷却凝固后形成的岩石，由于冷却速度很快，一般喷出岩的结构会形成细粒、隐晶，或形成玻璃质，经常包含有碎屑和斑晶；含有斑晶的称为“某某斑岩”，比如英安斑岩、流纹斑岩等等，岩石中及含有斑晶也含有碎屑，大些的碎屑则称为角砾。喷出岩由于冷却很快，有时其中气体无法逸出，形成很小的气泡，最典型的如浮岩，由于含气量大，造成比重小，甚至能在水中漂浮。喷出岩中含硅量低的一般称为玄武岩，含硅量高的为流纹岩，此外硅含量中等的还有安山岩、粗面岩和英安岩等。火山喷出的火山灰和碎屑会形成凝灰岩。其实就是一一对应了超基性，基性，中性，酸性花岗岩岩浆化学成分对应的岩类：蛇绿岩套（辉长岩、辉绿岩等），闪长岩，花岗闪长岩，花岗岩。只是说在成因上一个是喷出岩，一个是潜伏岩。英语百科 Volcanic rock 喷出岩 Volcanic rock (often shortened to volcanics in scientific contexts) is a rock formed from magma erupted from a volcano. In other words, it differs from other igneous rock by being of volcanic origin. Like all rock types, the concept of volcanic rock is artificial, and in nature volcanic rocks grade into hypabyssal and metamorphic rocks and constitute an important element of some sediments and sedimentary rocks. For these reasons, in geology, volcanics and shallow hypabyssal rocks are not always treated as distinct. In the context of Precambrian shield geology, the term "volcanic" is often applied to what are strictly metavolcanic rocks. 近义、反义、联想词近义词 n. igneous rock 英英词典 volcanic rock n. extrusive igneous rock solidified near or on the surface of the Earth
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volcanic rock

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喷出岩

Volcanic rock 喷出岩

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