achondrites

简明释义

英[əˈkɒn.draɪts]美[əˈkɑn.draɪts]

无球粒陨石

英英释义

单词用法

同义词

反义词

例句

1.Aeroliths are further subdivided into two classes: chondrites and achondrites.

陨石进一步细分为两类：球粒状陨石和无球粒陨石。

2.Irons, stony-irons, chondrite, and achondrites are by no means equally abundant among observed meteorites.

（真题）铁矿、陨铁石、球粒状陨石及无球粒陨石在可观测到的陨石中绝不多见。

3.Irons, stony-irons, chondrite, and achondrites are by no means equally abundant among observed meteorites.

（真题）铁矿、陨铁石、球粒状陨石及无球粒陨石在可观测到的陨石中绝不多见。

4.Meteorites generally fall into one of two categories—chondrites and achondrites.

陨石通常分为两类：球粒陨石（chondrites）和非球粒陨石（achondrites）。

5.Some achondrites are believed to originate from the Moon or Mars.

一些无球粒陨石被认为起源于月球或火星。

6.Scientists study achondrites to learn more about the early solar system.

科学家研究无球粒陨石以了解更多关于早期太阳系的信息。

7.The study of achondrites can help us understand the processes that shaped terrestrial planets.

对无球粒陨石的研究可以帮助我们理解塑造类地行星的过程。

8.The achondrites found in Antarctica provide valuable insights into planetary formation.

在南极发现的无球粒陨石为行星形成提供了宝贵的见解。

9.Researchers have categorized several types of achondrites based on their mineral composition.

研究人员根据矿物成分对几种类型的无球粒陨石进行了分类。

作文

Achondrites are a fascinating type of meteorite that provide valuable insights into the early solar system and the processes that shaped planetary bodies. Unlike other types of meteorites, such as chondrites, which contain small spherical grains called chondrules, achondrites are characterized by their lack of these features. This absence indicates that achondrites have undergone significant differentiation, suggesting that they originated from larger parent bodies that experienced melting and subsequent geological activity. The study of achondrites is crucial for understanding the formation and evolution of terrestrial planets, including Earth.One of the most intriguing aspects of achondrites is their origin. Most achondrites are believed to come from asteroids that were once part of the early solar system. These asteroids, such as 4 Vesta, underwent processes that caused them to differentiate into layers, similar to how Earth has a core, mantle, and crust. When these bodies were impacted by other celestial objects, fragments were ejected into space, eventually landing on Earth as meteorites. By studying these achondrites, scientists can gain insights into the conditions present in the early solar system and how they influenced the development of planets.The composition of achondrites is also noteworthy. They typically consist of silicate minerals, which form the bulk of rocky planets. The mineralogy of achondrites can vary significantly, reflecting the diverse environments in which they formed. For instance, some achondrites are rich in olivine and pyroxene, while others may contain unique minerals that indicate high-temperature processes or even interactions with water. This diversity makes achondrites an exciting subject for mineralogical studies, allowing researchers to reconstruct the thermal and chemical history of their parent bodies.In addition to their scientific significance, achondrites also have practical implications. Understanding the processes that led to the formation of these meteorites can inform our knowledge about the resources available on asteroids, which may be crucial for future space exploration and potential mining endeavors. As humanity looks toward the stars, the study of achondrites could play a pivotal role in identifying viable targets for resource extraction.Furthermore, achondrites are essential for understanding impact processes on planetary surfaces. The study of impact craters on bodies like the Moon and Mars reveals that many of these impacts are likely to have involved achondrites. By analyzing the characteristics of these impacts, scientists can infer details about the history of these celestial bodies and their interactions with other objects in the solar system.In conclusion, achondrites are more than just remnants of ancient cosmic events; they are key pieces of the puzzle that help us understand the formation and evolution of our solar system. Through ongoing research and exploration, we continue to uncover the mysteries held within these unique meteorites, shedding light on our planet's origins and the broader context of planetary science. The study of achondrites not only enhances our knowledge of the past but also paves the way for future discoveries in space exploration and planetary geology.

无球粒陨石是一种迷人的陨石类型，提供了对早期太阳系及其塑造行星体过程的宝贵见解。与其他类型的陨石（如球粒陨石）不同，无球粒陨石不含小球形颗粒（称为球粒）。这种缺失表明，无球粒陨石经历了显著的分化，表明它们起源于经历熔融和后续地质活动的较大母体。研究无球粒陨石对于理解地球等类地行星的形成和演化至关重要。无球粒陨石最引人入胜的方面之一是它们的起源。大多数无球粒陨石被认为来自于早期太阳系中的小行星。这些小行星，如4号维斯塔，经历了导致它们分化成层的过程，类似于地球有核心、地幔和地壳。当这些天体受到其他天体的撞击时，碎片被抛入太空，最终作为陨石降落在地球上。通过研究这些无球粒陨石，科学家可以深入了解早期太阳系中存在的条件以及它们如何影响行星的发展。无球粒陨石的成分也很值得注意。它们通常由硅酸盐矿物组成，这些矿物构成了岩石行星的主体。无球粒陨石的矿物组成可能会显著变化，反映出它们形成时的多样环境。例如，一些无球粒陨石富含橄榄石和辉石，而另一些可能含有独特的矿物，表明高温过程甚至与水的相互作用。这种多样性使得无球粒陨石成为矿物学研究的一个令人兴奋的主题，允许研究人员重建其母体的热和化学历史。除了科学意义外，无球粒陨石还具有实际意义。理解导致这些陨石形成的过程可以帮助我们了解小行星上可用资源，这对未来的太空探索和潜在的采矿事业至关重要。随着人类向星空迈进，对无球粒陨石的研究可能在确定未来资源开采的可行目标方面发挥关键作用。此外，无球粒陨石对于理解行星表面的撞击过程至关重要。对月球和火星等天体撞击坑的研究表明，这些撞击中的许多可能涉及无球粒陨石。通过分析这些撞击的特征，科学家可以推断出关于这些天体历史及其与太阳系中其他物体相互作用的细节。总之，无球粒陨石不仅仅是古代宇宙事件的残余；它们是帮助我们理解太阳系形成和演化的关键拼图。通过持续的研究和探索，我们继续揭示这些独特陨石所蕴藏的神秘，阐明我们星球的起源及行星科学的更广泛背景。对无球粒陨石的研究不仅增强了我们对过去的知识，而且为未来在太空探索和行星地质学方面的发现铺平了道路。