查询词典 volcanic bomb

This paper studied the lithologic characteristics, porosity and its evaluation, forming mechanisms of six kinds of volcanic rocks, and analyzed the evaluation history and the key factors about the main volcanic reservoirs, including andesite, basalt and tuff, etc.

对研究区火山岩岩性特征、储集空间类型、孔隙演化特征及其主要影响因素进行了深入分析，研究了区内6种火山岩的岩性特征及4个亚类储集空间的发育特征，深入分析了区内主要的火山岩储层如安山岩、玄武岩、火山角砾岩和凝灰岩等的孔隙演化过程及其控制因素。

Within the closed loop of the andesite line are most of the deep troughs, submerged volcanic mountains, and oceanic volcanic islands that characterize the Pacific basin.

安山岩线是太平洋地貌中最重要的分界线，将中部太平洋盆地较深层的火成镁铁岩及大陆边沿的半沉降火成长英岩分隔开来。

The volcanic rocks of the Xiong'er Group is also widespread in the Baoji and Lvliang area and also appear as 1.75Ga-old mafic dyke swarms, A-type granites, later anorthosite and rapakivi granites (1.75-1.70Ga), and alkaline granitoids (~1.65Ga). These intrusive rocks are assumed to have genetic link to the volcanic rocks of the Xiong'er Group.

熊耳期岩浆活动在华北陆块广泛分布，除了陕西宝鸡附近及山西吕梁地区的火山岩，还广泛分布1.75Ga前后的基性岩墙群、A-型花岗岩以及比熊耳群稍晚的斜长岩、奥长环斑花岗岩等(1.75-1.70Ga)和碱性花岗岩类(~1.65Ga)。

Tuyon volcanic rocks are classified as alkali series, which are low in silicon, enrichedin alkali, especially enriched in kalium. The types of the volcanic rocks include trachybasalt,basanite, basalt,and phonolitic basalt.

托云火山岩具贫硅富碱，特别是富钾的特点，属于碱性系列，岩石的类型包括粗面玄武岩、碧玄岩、玄武岩、响岩质玄武岩。

Armed with this information and further analyses, Rumble, lead author Bekker, and colleagues propose the following scenario today in Science . Early in Earth's history, volcanic eruptions spewed massive amounts of sulfur dioxide into the atmosphere, where UV sunlight broke down the gas and created the odd sulfur isotope ratios. The sulfur descended with the rain and accumulated into sedimentary beds on the sea floor. Once there, superheated water from geothermal vents at various locations on the sea floor cooked the sulfur into sulfide. Finally, nickel-bearing magma welled up from Earth's mantle, combining with the sulfide to form nickel sulfide and encasing the compound inside volcanic rock called komatiite.

凭借这份资料和进一步的分析，朗布尔、研究论文的第一作者贝克及同事们今天在《科学》杂志上提出了如下的推测：在地球早期的历史上，火山爆发将大量的二氧化硫气体喷射到空中，太阳的紫外线将其分解，产生了奇特的硫同位素比值，这种硫随雨降下，积存于海底沉积层中；一旦到达海底，海底各处的地热出口所产生的温度过高的水把硫加热成硫化物；最终含有镍的岩浆从地幔中涌出，跟硫化物结合形成硫化镍，并将硫化镍包裹在一种叫做"科马提岩"的火山岩中。

Therefore Keller Peninsula is a revived caldera, and its volcanic activities are characteristic of migration of volcanic center with time.

因此凯勒半岛是一复活破火山，火山活动具有随时间迁移的特性。

Research finds out that Carboniferous-Early Permian volcanic rocks system that largely distributing in Tianshan and its adjacent regions are continental rift volcanic rock system, it originated from mantle plume, they may be the surface response of the deep Geodynamics of paleo-Tethys extension effect in central Asian region.

5研究查明天山及其相邻地区广泛分布的石炭纪—早二叠世火山岩系为大陆裂谷火山岩系，其源区起源于地幔柱，它们可能是古特提斯拉伸裂解作用的深部地球动力学在中亚地区的地表响应

Firstly, the volcanics and shaly sand were separated with FMI static images and conventional logging data. Then, the image characteristics of all typical volcanics were analyzed with the dynamic FMI images to establish the FMI image patterns of volcanic lava (including rhyolite, dacite, andesite, and basalt) and volcaniclastic rock (including volcanic breeds and tuff).

首先利用FMI静态图像和常规测井曲线将砂泥岩与火山岩区分开来；然后利用FMI动态图像分析了火山岩各种岩性的图像特征，归纳总结出火山熔岩类（流纹岩、英安岩、安山岩、玄武岩）和火山碎屑岩类的FMI图像模式。

Nearly 200 years, Japan's volcanic eruption for more than A, B volcanic levels.

近200多年来，日本的火山爆发多为A、B两级火山。

Exemplified by Jingpohu Holocene volcanic rocks, this paper has discussed the relationship between melt structure and volcanic eruptive mechanism.

本文以镜泊湖全新世火山为例，讨论了熔体结构和某些火山喷发机制的关系。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？