查询词典 volcanic

As the late evolutionary stage product of alkali-rich magma, pantellerite is always accumulated near the volcanic crater due to its high viscosity and poor mobility.

碱流岩是富碱岩浆演化晚期的产物，岩浆喷发到地表时粘度大，流动性差，往往堆积在火山口附近。

The volcanic rocks of Early Cretaceous Yingcheng Formation contain abundant perlitic rocks and they are important petroliferous layers in Songliao basin.

松辽盆地早白垩世营城组火山岩系含有丰富的珍珠岩，为松辽盆地重要的油气勘探目的层位。

Much attention is paid to petrologic recognition marks and distribution regulation of volcanic event strata in coal-bearing sequences of Taiyuan formation in the middle of North China.

研究了华北中部太原组含煤地层中火山事件层的岩石学识别标志和分布规律。

This paper has mainly dealt, with the structural setting of volcanism, the petrologic and geochemical characteristics of volcanic rocks and its related mineralization along the coast of southeastern China and its vicinity.

本文主要论述中国沿海及其邻侧火山作用的构造背景、火山岩的岩石学和地球化学特征，以及其有关的成矿作用。

Much attention is paid to petrologic recognition marks and distribution regulation of volcanic event strata in coal-bearing sequences of Taiyuan formation in the middle of North China.

概要：桑树勋刘焕杰贾玉如摘要研究了华北中部太原组含煤地层中火山事件层的岩石学识别标志和分布规律。研究结果表明：含煤地层中广泛发育火山事件层。

Physiographically, Taiwan has five major areas: the Central Mountain Range, volcanic mountains, foothills, tablelands, coastal plains and basins.

就地形而言，台湾可概分五大部份：中央山脉、火山、丘陵、台地、海岸平原及盆地。

Any of various volcanic glasses distinguished by their dull pitchlike luster.

松脂石某种火山玻璃，以其暗似沥青的光泽而著名

During these events, the potassic volcanic rocks of Oulituozi were produced during extension stage of the rift with subsequent fractional crystallization and derived from basaltic magma.

欧利坨子富钾质火山岩的形成是裂谷期岩石圈伸展作用的产物，是玄武质岩浆经过大比例分离结晶作用的产物，可能与晚中生代太平洋板块俯冲残片的部分熔融有密切关系。

Kamafugite is an ultra potassic volcanic rock occurred in oceanic and/or continental settings, especially in continental rift. Kamafugite is also an igneous rock outcropped very rarely in the world.

钾霞橄黄长岩是一种产于大洋和/或大陆环境，尤以大陆裂谷最为多见的超钾质火山岩，也是世界上出露最少的火成岩之一，目前世界只有少数几个国家和地区有这类岩石的报道。

These evidences lead to the conclusion that the Late Mesozoic volcanic activities in the study area are related to pulsative up-welling diapirs of asthenosphere, for which a natural passage is provided by the specific tectonic background confined by large-scale lithospheric faults in the study area.

根据上述特点，提出辽西晚中生代的火山岩活动可能与软流圈底辟体脉动式上涌有关，研究区被岩石圈断裂围限的特定构造背景为软流圈底辟体的上涌提供了天然通道。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。