palaeomagnetic

简明释义

英[ˌpeɪliəʊˈmæɡnɪtɪk]美[ˌpeɪliəʊˈmæɡnɪtɪk]

adj. 古地磁的

英英释义

单词用法

同义词

反义词

例句

1.This dissertation studied the function and influence of the peripheral plate to the Chaidamu tiny plate, by use of the palaeomagnetic data, the field geology survey data and the laboratory data etc.

本文通过利用古地磁资料、野外地质调查资料与相应的分析化验资料等，研究了周边板块对柴达木微板块的作用与影响。

2.This dissertation studied the function and influence of the peripheral plate to the Chaidamu tiny plate, by use of the palaeomagnetic data, the field geology survey data and the laboratory data etc.

本文通过利用古地磁资料、野外地质调查资料与相应的分析化验资料等，研究了周边板块对柴达木微板块的作用与影响。

3.The tectonic reconstruction of the continental masses in China during Cambrian time has been made on the basis of the palaeomagnetic data available and plate tectonic information.

笔者根据近年来所获的古地磁数据及板块构造的研究成果，对中国各大陆块在寒武纪全球构造中的位置进行了再造。

4.The magnetic declination of palaeomagnetic mean directions of the Bohemian Massif and that of Inner Sudetie Basin of Late Carboniferous Epoc differed 17 degrees.

波希米亚地块与内苏台德盆地地区晚石炭纪古地磁平均方向的磁偏角相差17度。

5.The study of palaeomagnetic properties helps geologists understand the historical movements of tectonic plates.

对古地磁特性的研究帮助地质学家理解构造板块的历史运动。

6.Researchers used palaeomagnetic data to reconstruct ancient climates and environmental conditions.

研究人员利用古地磁数据重建古代气候和环境条件。

7.The palaeomagnetic record in rocks can reveal information about past magnetic field reversals.

岩石中的古地磁记录可以揭示过去磁场反转的信息。

8.By analyzing palaeomagnetic signals, scientists can date geological formations with greater accuracy.

通过分析古地磁信号，科学家可以更准确地为地质构造定年。

9.The palaeomagnetic studies conducted on sediment cores provided insights into Earth's magnetic history.

对沉积物芯样进行的古地磁研究提供了对地球磁场历史的见解。

作文

The study of the Earth's magnetic field has fascinated scientists for centuries. Among the various branches of geophysics, one of the most intriguing is palaeomagnetism, which focuses on the magnetic properties of rocks and sediments. This field of study provides valuable insights into the historical changes in the Earth's magnetic field and its implications for understanding plate tectonics, climate change, and even the evolution of life on our planet. Palaeomagnetic studies involve analyzing the magnetic minerals found in ancient rocks, which can record the direction and intensity of the Earth's magnetic field at the time of their formation. One of the key aspects of palaeomagnetism is its ability to reveal the past positions of continents. As tectonic plates shift over millions of years, they carry with them the magnetic signatures recorded in the rocks. By studying these signatures, scientists can reconstruct the movement of continents and understand the processes that have shaped the Earth's surface. For example, when rocks solidify from molten lava, they can capture the Earth's magnetic field's orientation at that moment. If a rock is later found in a different location, it can indicate that the continent has moved since the rock was formed. Moreover, palaeomagnetism plays a crucial role in understanding geomagnetic reversals—events where the Earth's magnetic poles switch places. These reversals occur irregularly throughout geological history and can be identified in the rock record. By analyzing the magnetic properties of sedimentary layers, researchers can create a timeline of these reversals, helping to illuminate the dynamic nature of the Earth's interior and its magnetic field. In addition to tectonic movements and geomagnetic reversals, palaeomagnetic studies also contribute to our understanding of climate change. The magnetic minerals found in ocean sediments can provide clues about past ocean temperatures and circulation patterns. By correlating these findings with other geological data, scientists can piece together a more comprehensive picture of how the Earth’s climate has evolved over time. Furthermore, palaeomagnetism can aid in dating archaeological sites. Some ancient human artifacts are found alongside volcanic rocks that have preserved their magnetic signature. By determining the age of these rocks through radiometric dating, archaeologists can establish a timeline for human activity in those regions. This intersection of geology and archaeology highlights the interdisciplinary nature of palaeomagnetism and its broad applications. In conclusion, the field of palaeomagnetism is an essential tool for scientists seeking to unravel the mysteries of the Earth’s past. From tracking continental drift to understanding climate changes and dating archaeological finds, the insights gained from palaeomagnetic studies are invaluable. As technology advances and new methodologies are developed, the potential for further discoveries in this fascinating field continues to grow, promising to deepen our understanding of the planet we inhabit.

地球磁场的研究吸引了科学家们几个世纪以来的关注。在地球物理学的各个分支中，最引人入胜的之一是古地磁学，它专注于岩石和沉积物的磁性特征。这个研究领域提供了关于地球磁场历史变化的宝贵见解，以及这些变化对理解板块构造、气候变化甚至生命演化的影响。古地磁学研究涉及分析古老岩石中发现的磁性矿物，这些矿物能够记录在其形成时地球磁场的方向和强度。 古地磁学的一个关键方面是它揭示大陆过去位置的能力。随着构造板块在数百万年间的移动，它们携带着岩石中记录的磁性特征。通过研究这些特征，科学家可以重建大陆的运动，并理解塑造地球表面的过程。例如，当岩石从熔融岩浆中固化时，它们可以捕捉到当时地球磁场的方向。如果后来发现一块岩石位于不同的位置，则可以表明自岩石形成以来大陆已经移动。 此外，古地磁学在理解地磁反转方面也发挥着重要作用——即地球磁极互换的事件。这些反转在地质历史上不规则地发生，可以在岩石记录中识别出来。通过分析沉积层的磁性特征，研究人员可以创建这些反转的时间线，从而阐明地球内部及其磁场的动态特性。 除了构造运动和地磁反转，古地磁学研究还帮助我们理解气候变化。在海洋沉积物中发现的磁性矿物可以提供关于过去海洋温度和环流模式的线索。通过将这些发现与其他地质数据相关联，科学家可以拼凑出地球气候随时间演变的更全面的图景。 此外，古地磁学还可以帮助考古遗址的定年。一些古代人类文物与保存其磁性特征的火山岩一起发现。通过通过放射性定年法确定这些岩石的年龄，考古学家可以建立该地区人类活动的时间线。这种地质学与考古学的交叉突显了古地磁学的跨学科性质及其广泛的应用。 总之，古地磁学领域是科学家们揭示地球过去奥秘的重要工具。从追踪大陆漂移到理解气候变化和考古遗址的定年，古地磁学研究所获得的见解是无价的。随着技术的进步和新方法的发展，在这个迷人的领域进一步发现的潜力持续增长，承诺加深我们对所居住星球的理解。