tholeiite

简明释义

英[θoʊˈlaɪˌaɪt]美[θoʊˈlaɪˌaɪt]

n. [岩] 拉斑玄武岩

英英释义

单词用法

同义词

反义词

例句

1.Its primary magma is high MgO tholeiite.

原生岩浆是高镁拉斑玄武岩浆。

2.A syn-orogenic uplift-extensional tectonic setting occurs in the late episode of Late Triassic-Early Jurassic, which is characterized mainly by down-faulted basins and tholeiite;

晚三叠世末-早侏罗世为同造山上隆伸展环境，形成的主要地质要素是裂陷盆地与拉斑玄武岩；

3.The geochemical study on meso basic meta volcanics in Zhangchun group, northeast Jiangxi shows island arc tholeiite is characteristic of low K and high Na contents;

赣东北张村岩群所含之中基性变火山岩的地球化学研究表明：其主元素具低钾高钠；

4.Association of continental alkaline basalt with oceanic tholeiite and oceanic island basalt in the junction is reasonably interpreted.

较合理地解释了结合带内，大洋拉斑玄武岩、洋岛玄武岩、大陆碱性玄武岩共存的地质特征。

5.The basalt belongs to the sub-alkaline tholeiite series.

玄武岩属于亚碱性系列中的拉斑玄武岩。

6.Therefore, the element ratios can be applied to the study of trace element characteristics of rocks in the tholeiite source region.

因此研究拉斑玄武岩源区岩石中的微量元素特征可以采用元素比值的方法。

7.All of above characteristics show that the Qingshuiquan basalt is continent tholeiite, rather than a component unit of ophiolites.

这些特征显示大陆拉斑玄武岩的特征，不是蛇绿岩组成单元。

8.A syn-orogenic uplift-extensional tectonic setting occurs in the late episode of Late Triassic-Early Jurassic, which is characterized mainly by down-faulted basins and tholeiite;

晚三叠世末-早侏罗世为同造山上隆伸展环境，形成的主要地质要素是裂陷盆地与拉斑玄武岩；

9.The compositions of major elements from the rocks are consistent with those of basalt and have evolutional current of tholeiite.

岩石的主量元素组成和玄武岩一致，并且具有拉斑玄武岩演化趋势。

10.The presence of tholeiite in a region can indicate past volcanic activity and help reconstruct geological history.

一个地区存在玄武岩可能表明过去的火山活动，并有助于重建地质历史。

11.Geologists often study tholeiite to understand the tectonic processes that create oceanic crust.

地质学家通常研究玄武岩以了解形成海洋地壳的构造过程。

12.In the context of igneous petrology, tholeiite is significant for its role in the evolution of basaltic magmas.

在火成岩宠物学中，玄武岩因其在玄武质岩浆演化中的作用而具有重要意义。

13.Samples of tholeiite were found on the ocean floor, providing insights into the formation of mid-ocean ridges.

在海底发现了玄武岩样本，这为中洋脊的形成提供了见解。

14.The volcanic rock sample we collected was identified as tholeiite, which is characterized by its low potassium content.

我们收集的火山岩样本被鉴定为玄武岩，其特点是低钾含量。

作文

In the study of geology and petrology, various types of volcanic rocks play a crucial role in understanding the Earth's formation and the processes that shape its surface. One such rock type is tholeiite, which is primarily characterized by its basaltic composition and specific mineral content. The term tholeiite refers to a type of basaltic lava that is rich in iron and magnesium but low in silica. This unique chemical composition gives tholeiite distinct physical properties, making it an essential subject of study for geologists.Tholeiite is typically formed during the early stages of volcanic activity, particularly in oceanic settings. It is commonly associated with mid-ocean ridges, where tectonic plates are diverging, allowing magma to rise from the mantle and erupt onto the ocean floor. This process not only creates new oceanic crust but also contributes to the overall understanding of plate tectonics and the geological history of our planet.One of the fascinating aspects of tholeiite is its role in the development of island chains, such as the Hawaiian Islands. As a hotspot volcano erupts, it produces tholeiite lava flows that build up over time, forming islands. These islands can provide valuable insights into the geological processes that occur beneath the Earth's surface. For instance, studying the age and composition of tholeiite lavas can help scientists reconstruct the history of volcanic activity and the movement of tectonic plates.Moreover, tholeiite has significant implications for understanding the evolution of the Earth's crust. Its presence in various geological formations indicates past volcanic activity and can be used to infer the conditions under which these rocks were formed. Through detailed analysis of tholeiite samples, researchers can gain insights into the temperature, pressure, and chemical environment of ancient volcanic eruptions.In addition to its geological significance, tholeiite also has practical applications. The mineral composition of tholeiite makes it a source of valuable minerals, such as olivine and pyroxene, which are used in various industrial processes. Understanding the distribution and characteristics of tholeiite deposits can aid in resource exploration and extraction, contributing to the economy and technological advancements.In conclusion, tholeiite is more than just a type of volcanic rock; it is a key player in the intricate processes that shape our planet. From its formation at mid-ocean ridges to its role in island-building and resource generation, tholeiite provides invaluable information about the Earth's geological history. As research continues to uncover the complexities of tholeiite and its associated processes, our understanding of the Earth’s dynamic systems will undoubtedly deepen, highlighting the importance of this unique rock type in the field of geology.

在地质学和岩石学的研究中，各种类型的火山岩在理解地球的形成及其表面塑造过程中发挥着至关重要的作用。其中一种岩石类型是tholeiite，其主要特征是基性成分和特定的矿物成分。术语tholeiite指的是一种富含铁和镁但低于二氧化硅的基性熔岩。这种独特的化学成分赋予了tholeiite独特的物理性质，使其成为地质学家研究的重要对象。Tholeiite通常在火山活动的早期阶段形成，特别是在海洋环境中。它通常与中洋脊相关联，在那里，构造板块正在分离，允许岩浆从地幔上升并喷发到海底。这一过程不仅创造了新的海洋地壳，还促进了对板块构造和我们星球地质历史的整体理解。Tholeiite的一个迷人之处在于它在岛链发展中的作用，例如夏威夷群岛。当热点火山喷发时，它会产生tholeiite熔岩流，这些熔岩流随着时间的推移而累积，形成岛屿。这些岛屿可以提供对地球表面下发生的地质过程的宝贵见解。例如，研究tholeiite熔岩的年龄和成分可以帮助科学家重建火山活动和构造板块运动的历史。此外，tholeiite对理解地壳演化也具有重要意义。它在各种地质构造中的存在表明过去的火山活动，并可用于推断这些岩石形成时的条件。通过对tholeiite样本的详细分析，研究人员可以深入了解古代火山喷发的温度、压力和化学环境。除了其地质意义外，tholeiite还有实际应用。Tholeiite的矿物成分使其成为有价值矿物（如橄榄石和辉石）的来源，这些矿物用于各种工业过程。了解tholeiite矿床的分布和特征可以帮助资源勘探和开采，为经济和技术进步作出贡献。总之，tholeiite不仅仅是一种火山岩；它是塑造我们星球复杂过程的关键参与者。从它在中洋脊的形成到它在岛屿建设和资源生成中的作用，tholeiite提供了关于地球地质历史的宝贵信息。随着研究继续揭示tholeiite及其相关过程的复杂性，我们对地球动态系统的理解无疑会加深，突显出这一独特岩石类型在地质学领域的重要性。