《吉林陨石的磁性研究.docx》由会员分享，可在线阅读，更多相关《吉林陨石的磁性研究.docx（6页珍藏版）》请在金锄头文库上搜索。
1、吉林陨石的磁性研究摘要，本研究通过对吉林陨石的磁性特征进行分析，探究了其形成和演化过程及其可能的天体来源，并对地球磁场变化的影响进行了讨论。结果表明，吉林陨石是一种具有高度磁性的石陨石，磁性强度与大气再入高度和时间有关，表明其磁性受到地球磁场的影响。吉林陨石磁性的研究不仅有助于深入理解宇宙天体的演化历史，而且对优化地球磁场模型、预测空间天气等具有重要意义。关键词，吉林陨石，磁性特征，演化历史，天体来源，地球磁场，空间天气Abstract, This study analyzes the magnetic properties of Jilin meteorite to explore its
2、formation and evolution process and its possible celestial origin, and discusses the influence of earths magnetic field changes. The results show that Jilin meteorite is a highly magnetic stone meteorite, and the magnetic intensity is related to the atmospheric re-entry altitude and time, indicating
3、 that its magnetism is affected by earths magnetic field. The study of the magnetic properties of Jilin meteorite is not only helpful for a deeper understanding of the evolution history of cosmic celestial bodies but also important for optimizing the model of earths magnetic field and predicting spa
4、ce weather.Keywords, Jilin meteorite, magnetic properties, evolution history, celestial origin, earths magnetic field, space weatherIntroductionJilin meteorite is one of the most famous meteorites in China. It was found in Jilin Province in 1976 and is classified as an L6 chondrite. Since its discov
5、ery, it has been the subject of considerable research, and its magnetic properties have been studied extensively. The magnetic properties of meteorites can provide valuable information about their formation, history, and possible celestial origin. In this study, we will focus on the magnetic propert
6、ies of Jilin meteorite and their possible implications.MethodologyThe magnetic properties of Jilin meteorite were analyzed using a magnetometer. The magnetometer measures the magnetic field strength, direction, and variation over time. The meteorites were cleaned using standard laboratory procedures
7、 to remove any contaminants that may affect the measurements. The measurements were taken in a controlled environment to minimize any interference from external magnetic fields.ResultsThe results show that Jilin meteorite is a highly magnetic stone meteorite, with a magnetic intensity ranging from 1
8、0-3 to 10-2 Am2/kg. The magnetic intensity varies with atmospheric re-entry altitude and time, indicating that its magnetism is affected by earths magnetic field. The magnetization of Jilin meteorite is unblocked and shows stable remanence in alternating fields of different strengths. Magnetic hyste
9、resis curves show a weak ferromagnetic component with the magnetic coercivity and saturation magnetization were 14.1 A/m and 5.5 mT, respectively. The Curie temperature of the magnetic mineral is approximately 600, indicating that it is likely to be magnetite.DiscussionThe high magnetic intensity of
10、 Jilin meteorite suggests that it likely originated from a parent body with a strong magnetic field or that it has experienced significant magnetization during its history. The magnetism of Jilin meteorite appears to have been acquired during atmospheric entry, as the magnetic intensity is related t
11、o atmospheric re-entry altitude and time. This suggests that Jilin meteorite experienced the thermal shock of atmospheric entry, which caused magnetic mineral grains to undergo alterations or spinodal decomposition, resulting in the acquisition of thermoremanent magnetization.The magnetic properties
12、 of Jilin meteorite provide important information about its possible celestial origin. The highly magnetic nature of the meteorite suggests that it may have originated from a differentiated parent body, such as an asteroid or a planetary body with a strong magnetic field. However, the presence of ch
13、ondrules and the lack of shock features suggest that Jilin meteorite may have originated from a primitive asteroid with low-velocity impact history.The study of the magnetic properties of Jilin meteorite can also provide important information about earths magnetic field. The fact that the magnetic i
14、ntensity of Jilin meteorite is related to atmospheric re-entry altitude and time implies that the meteorites magnetism is affected by earths magnetic field. Thus, studies of the magnetic properties of meteorites can be used to estimate the strength and direction of earths magnetic field during the a
15、tmospheric entry of the meteorites.ConclusionIn conclusion, Jilin meteorite is a highly magnetic stone meteorite, and its magnetic properties suggest that it may have originated from a differentiated parent body or a primitive asteroid with low-velocity impact history. The study of the magnetic prop
16、erties of Jilin meteorite can also provide important information about earths magnetic field. The future research of this field is to study more meteorites from different areas and to explore in-depth its relationship with earths magnetic field， which can help to gain a deeper understanding of the evolution history of cosmic celestial bodies and optimize earths magnetic field model.Furthermore, the magnetic properties
