paleomagnetism

简明释义

英[ˌpeɪlɪəʊˈmæɡnɪtɪzəm]美[ˌpeɪlioʊˈmæɡnəˌtɪzəm]

n. 古地磁学

英英释义

单词用法

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例句

1.With methods of paleomagnetism, magnetic susceptibility and lithological analysis, a reliable chronostratigraphic framework of core DY03 in the Yangtze River delta was established.

通过对长江三角洲DY03孔古地磁、磁化率以及岩性分析，初步建立了研究钻孔较为可靠的年代地层框架。

2.With methods of paleomagnetism, magnetic susceptibility and lithological analysis, a reliable chronostratigraphic framework of core DY03 in the Yangtze River delta was established.

通过对长江三角洲DY03孔古地磁、磁化率以及岩性分析，初步建立了研究钻孔较为可靠的年代地层框架。

3.Six faculty members, four postdoctoral researchers, and graduate students work in the areas of global seismology, reflection seismology, geodynamics, geodesy, and paleomagnetism.

六个教员，四个博士后研究人员和研究生从事于区域内全球地震学、反射地震学、动力学、大地测量学、古磁学。

4.In this paper authors narrated paleomagnetism method of relative and absolute motion of terrane and at the same time indicated their inadequacy.

叙述了地体相对运动与绝对运动的古地磁方法。

5.Absolute age and paleomagnetism have been subjected to intensive studies.

绝对年龄和古地磁也已得到深入研究。

6.The study of paleomagnetism 古地磁学 has provided valuable insights into the movement of tectonic plates.

古地磁学的研究为构造板块的运动提供了宝贵的见解。

7.Researchers use paleomagnetism 古地磁学 to determine the historical positions of continents.

研究人员使用古地磁学来确定大陆的历史位置。

8.By analyzing paleomagnetism 古地磁学, scientists can reconstruct ancient climates.

通过分析古地磁学，科学家可以重建古代气候。

9.The field of paleomagnetism 古地磁学 plays a crucial role in understanding Earth's magnetic history.

古地磁学领域在理解地球磁场历史中发挥着至关重要的作用。

10.Geologists often rely on paleomagnetism 古地磁学 to date rock formations.

地质学家常常依赖古地磁学来对岩石形成进行年代测定。

作文

Paleomagnetism is a fascinating field of study that explores the historical magnetic fields of the Earth as recorded in rocks, sediments, and archaeological materials. This scientific discipline offers insights into the geological history of our planet, helping us understand plate tectonics, continental drift, and the movement of Earth's magnetic poles over time. The term paleomagnetism refers to the remnant magnetization that rocks acquire as they form, which can be used to infer the orientation and position of the Earth's magnetic field at the time of their formation. By studying these magnetic signatures, scientists can reconstruct past geographical configurations and movements of tectonic plates. One of the key methods used in paleomagnetism is the analysis of igneous rocks, which solidify from molten magma. As these rocks cool, iron-bearing minerals within them align with the Earth's magnetic field. This alignment locks in a record of the magnetic field's direction and intensity at that time. Similarly, sedimentary rocks also contain magnetic minerals that can provide valuable information about the Earth's magnetic history. By examining the magnetic properties of these rocks, researchers can determine how the continents have shifted over millions of years. The implications of paleomagnetism extend beyond geology; they also have significant applications in archaeology and anthropology. For instance, archaeologists can use paleomagnetic data to date ancient artifacts and understand the cultural practices of past civilizations. By correlating the magnetic signatures of archaeological sites with known geomagnetic records, they can establish timelines for human activity and migration patterns. Moreover, paleomagnetism plays a crucial role in understanding climate change. The Earth's magnetic field has undergone numerous reversals throughout its history, impacting the planet's climate and environmental conditions. By studying the magnetic properties of sediment cores from ocean floors, scientists can gain insights into past climate changes and how they relate to current global warming trends. This information is vital for predicting future climate scenarios and developing strategies for mitigation. In summary, paleomagnetism is an essential scientific discipline that bridges geology, archaeology, and environmental science. It provides a unique perspective on the Earth's history, allowing us to piece together the puzzle of our planet's dynamic nature. As we continue to explore this field, we not only enhance our understanding of Earth's past but also equip ourselves with knowledge that can inform our future actions in the face of ongoing climate change and environmental challenges. The study of paleomagnetism is a testament to the interconnectedness of various scientific fields and the importance of interdisciplinary research in addressing complex global issues.

古地磁学是一个迷人的研究领域，探索地球历史上的磁场，这些磁场记录在岩石、沉积物和考古材料中。这个科学学科为我们提供了对地球地质历史的见解，帮助我们理解板块构造、大陆漂移以及地球磁极随时间变化的运动。术语古地磁学指的是岩石在形成时获得的残余磁化，这可用于推断当时地球磁场的方向和位置。通过研究这些磁性特征，科学家可以重建过去的地理配置和构造板块的运动。 在古地磁学中使用的一种关键方法是分析火成岩，这些岩石是从熔融的岩浆中固化而成。当这些岩石冷却时，内部的含铁矿物会与地球的磁场对齐。这种对齐锁定了当时磁场方向和强度的记录。类似地，沉积岩也包含可以提供有关地球磁历史的有价值信息的磁性矿物。通过检查这些岩石的磁性特征，研究人员可以确定大陆在数百万年间如何移动。 古地磁学的影响超越了地质学；它在考古学和人类学中也有重要应用。例如，考古学家可以利用古地磁数据来为古代文物定年，并了解过去文明的文化实践。通过将考古遗址的磁性特征与已知的地球磁记录进行关联，他们可以建立人类活动和迁徙模式的时间线。 此外，古地磁学在理解气候变化方面发挥着至关重要的作用。地球的磁场在其历史上经历了多次反转，影响了地球的气候和环境条件。通过研究来自海洋底部的沉积物核心的磁性特征，科学家可以获得对过去气候变化的见解，以及这些变化如何与当前全球变暖趋势相关。这些信息对于预测未来气候情景和制定减缓策略至关重要。 总之，古地磁学是一个重要的科学学科，连接了地质学、考古学和环境科学。它为我们提供了对地球历史的独特视角，使我们能够拼凑出我们星球动态本质的拼图。随着我们继续探索这一领域，我们不仅增强了对地球过去的理解，还为应对气候变化和环境挑战提供了知识。对古地磁学的研究证明了各个科学领域之间的相互联系，以及跨学科研究在解决复杂全球问题中的重要性。