accessory ejecta

简明释义

1. 附生喷出物; 2. 再生抛出物; 3. 副喷出物; 4. 魂源抛出物;

英英释义

例句

1.The study focused on the accessory ejecta to understand the environmental impact of the eruption.

该研究集中在附属喷出物上，以了解喷发对环境的影响。

2.During the excavation, we discovered various types of accessory ejecta that provided insight into the eruption's intensity.

在挖掘过程中，我们发现了各种类型的附属喷出物，这为火山喷发的强度提供了见解。

3.The presence of accessory ejecta indicates that the volcano has had multiple phases of activity.

存在附属喷出物表明该火山经历了多次活动阶段。

4.The geologist studied the layers of rock to identify the accessory ejecta from the volcanic eruption.

地质学家研究岩石层以识别火山喷发的附属喷出物。

5.Researchers found that the composition of the accessory ejecta could help determine the magma's origin.

研究人员发现，附属喷出物的成分可以帮助确定岩浆的来源。

作文

In the study of planetary geology, the term accessory ejecta refers to the secondary materials that are expelled during impact events on celestial bodies. These materials can include fragments of rock, dust, and other debris that are not part of the primary impactor but are liberated from the surface of the impacted body. Understanding accessory ejecta is crucial for scientists as it provides insights into the composition and history of planetary surfaces. For example, when a meteorite strikes the Moon, it not only leaves a crater but also sends out a spray of accessory ejecta that can travel significant distances. This ejecta can settle in layers around the crater and contribute to the geological record of the Moon. By analyzing these layers, researchers can determine the age of the impact and the materials present on the lunar surface, which is vital for understanding the Moon's evolution over time.The study of accessory ejecta is not limited to the Moon; it extends to other celestial bodies such as Mars and asteroids. Each impact event generates a unique set of accessory ejecta, which can vary based on factors such as the size of the impactor, the angle of impact, and the geological characteristics of the surface. For instance, impacts on icy bodies may produce different types of ejecta compared to rocky surfaces, leading to diverse geological features and compositions.Moreover, the analysis of accessory ejecta has implications for planetary defense. By studying the materials ejected during past impacts, scientists can better predict the effects of potential future impacts on Earth and other planets. This knowledge is essential for developing strategies to mitigate the risks posed by near-Earth objects (NEOs) that could threaten our planet.In addition, accessory ejecta can also provide clues about the environmental conditions of the impacted body. For example, if the ejecta contains signs of water or organic materials, it may suggest that the body had, at some point, conditions favorable for life. This is particularly relevant in the search for extraterrestrial life, as scientists investigate the potential habitability of other planets and moons within our solar system.In conclusion, the concept of accessory ejecta plays a significant role in planetary science. It helps us understand not only the immediate effects of impact events but also the broader geological history of celestial bodies. As we continue to explore our solar system, the study of accessory ejecta will undoubtedly yield valuable information that enhances our knowledge of planetary processes and the potential for life beyond Earth.

在行星地质学研究中，术语附属喷发物指的是在天体撞击事件中被抛出的次要材料。这些材料可以包括岩石碎片、尘埃和其他废物，这些材料不是主要撞击物的一部分，但却是从被撞击体的表面释放出来的。理解附属喷发物对科学家至关重要，因为它提供了对行星表面组成和历史的见解。例如，当陨石撞击月球时，它不仅留下一个陨石坑，还会喷出一阵附属喷发物，这些喷发物可以传播相当远的距离。这些喷发物可以在陨石坑周围沉积成层，并且有助于月球的地质记录。通过分析这些层，研究人员可以确定撞击的年代以及月球表面存在的材料，这对于理解月球随时间演变的过程至关重要。附属喷发物的研究不仅限于月球；它还扩展到火星和小行星等其他天体。每个撞击事件都会产生一组独特的附属喷发物，这些喷发物可能会根据撞击者的大小、撞击角度和表面的地质特征而有所不同。例如，对冰体的撞击可能会产生与岩石表面不同类型的喷发物，从而导致不同的地质特征和组成。此外，分析附属喷发物对行星防御也具有重要意义。通过研究过去撞击事件中喷出的材料，科学家可以更好地预测未来可能对地球和其他行星造成的撞击影响。这一知识对于制定减轻近地天体（NEO）对我们星球威胁的策略至关重要。此外，附属喷发物还可以提供有关被撞击体环境条件的线索。例如，如果喷发物中含有水或有机材料的迹象，可能表明该天体曾经具备适合生命存在的条件。这在寻找外星生命的过程中尤为相关，因为科学家们正在调查我们太阳系内其他行星和卫星的潜在宜居性。总之，附属喷发物的概念在行星科学中扮演着重要角色。它帮助我们理解撞击事件的直接影响以及更广泛的天体地质历史。随着我们继续探索我们的太阳系，附属喷发物的研究无疑将带来有价值的信息，增强我们对行星过程和地球以外生命潜力的认识。