Lithospheric Magnetic Anomalies According to the CHAMP Satellite Data over the Western Himalayan Syntaxis and Surrounding Areas

Author:

Abramova D. Yu.1,Abramova L. M.2

Affiliation:

1. Pushkov Institute of Terrestrial Magnetism, Ionosphere, and Radio Wave Propagation RAS

2. Geoelectromagnetic Research Centre, Shmidt Institute of Physics of the Earth RAS

Abstract

The spatial distribution of the lithospheric magnetic anomalies field obtained from the German Earth satellite CHAMP measurements for several years of its mission is investigated over the territory of the Indo-Asian collision, in particular, the Tarim region and the Western Himalayan Syntax (WHS). Maps of the total intensity Ta of the lithospheric magnetic field for these regions are give. The lithospheric magnetic anomalies field as a reflection of the consequences of the Indian lithospheric plate subduction under the Eurasian plate is discussed in the context of modern ideas about the regional geological and tectonic structure. The inversion of the magnetic anomalies sign over the northern part of the Indian Plate observed on Ta maps is supposed as a result of the lower crust heating due to mantle processes, the rise of the Curie isotherm and, as a consequence, the loss of the initial magnetization of the lower crust. In order to study in detail the WHS and surrounding territory, maps of the lithospheric magnetic anomalies field are constructed at the lowest level of CHAMP orbit which leads to increase their resolution by nearing to the field sources. The relationship of detected regional anomalies with tectonic processes in this seismically active area and with other available geophysical information is discussed. Interpretation of the revealed information shows that the images of lithospheric magnetic anomalies distinctly correlate with modern view at the large-scale geological and tectonic structures location.

Publisher

The Russian Academy of Sciences

Reference46 articles.

1. Абрамова Д.Ю., Абрамова Л.М. Литосферные магнитные аномалии на территории Сибири (по измерениям спутника СНАМР) // Геология и геофизика. 2014. Т. 55. С. 1081–1092.

2. Абрамова Д.Ю., Абрамова Л.М., Варенцов И.М., Филиппов С.В. Исследование литосферных магнитных аномалий Гренландско-Исландско-Фарерского вулканического комплекса по данным измерений на спутнике CHAMP // Геофизические исследования. 2019. Т. 20(2). С. 5–18. https://doi.org/10.21455/gr2019.2-1

3. Абрамова Д.Ю., Филиппов С.В., Абрамова Л.М. О возможностях использования спутниковых геомагнитных наблюдений в исследовании геолого-тектонического строения литосферы // Исслед. Земли из космоса. 2020. № 2. С. 69–81. https://doi.org/10.31857/ S0205961420010029

4. Абрамова Д.Ю., Абрамова Л.М., Варенцов И.М. Аномальное литосферное магнитное поле над территорией Индо-Азиатской коллизии по данным спутника CHAMP // Исслед. Земли из космоса. 2022а. № 3. С. 55–65. https://doi.org/10.31857/S0205961422030022

5. Абрамова Д.Ю., Филиппов С.В., Абрамова Л.М., Варенцов И.М. Литосферные магнитные аномалии над территориями крупных магматических провинций // Геофизические процессы и биосфера. 2022б. Т. 21. № 1. С. 33–42. https://doi.org/10.21455/GPB2022.1-2

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3