Results 1 to 10 of about 3,177 (203)
Delineation of long-wavelength magnetic anomalies over central India by rectangular harmonic analysis [PDF]
Journal of Earth System Science, 1984 The method of rectangular harmonic analysis is applied to the geomagnetic field data from central India to isolate long wavelength magnetic anomalies associated with largescale crustal structures. The long-wavelength anomalies have accounted for approximately 20 % of the spatial variability of the residual magnetic field over the International ...
B R Arora, Arora B R
exaly +3 more sources
Earth and Planetary PhysicsLong-wavelength (>500 km) magnetic anomalies originating in the lithosphere were first found in satellite magnetic surveys. Compared to the striking magnetic anomalies around the world, the long-wavelength magnetic anomalies in China and surrounding ...
Jie Wang +6 more
doaj +4 more sources
On the possible mantle nature of the long-wave Central-European magnetic anomaly
Геофизический журнал, 2020 This paper presents the results of a comprehensive analysis of geological and geophysical data, carried out to substantiate the existence and nature of transition class of magnetic anomalies produced by the Earth’s core and the lithosphere.
I.K. Pashkevich +5 more
doaj +2 more sources
Origin of Long‐Wavelength Magnetic Anomalies at Subduction Zones [PDF]
Journal of Geophysical Research: Solid Earth, 2019 AbstractMost subduction zones have associated long‐wavelength anomalies in the lithospheric magnetic field observed at satellite altitude. We model the 13 subduction zones defined by seismicity and seismic tomography using vertically integrated magnetizations that are increasing, level, or decreasing away from the trench.
Simon E Williams, David Gubbins
exaly +2 more sources
Crustal xenolith magnetic properties and long wavelength anomaly source requirements
Geophysical Research Letters, 1982 Granulite xenoliths, probable components of the lower continental crust, are a primary source of information about the magnetization of the lower crust. Magnetization values for lower crustal xenoliths from three tectonic settings (converging plate margin, rift valley, and continental intraplate region) demonstrate that metabasic rocks in the granulite
M A Mayhew
exaly +2 more sources
Lithospheric long-wavelength magnetic anomalies and their geological origins: A review
地球与行星物理论评At the altitude of low-Earth-orbiting satellites, most details of lithospheric magnetic anomalies observed near surface are attenuated, and only slowly decaying long-wavelength magnetic anomalies can be detected.
Jie Wang +6 more
doaj +2 more sources
The potential contribution to long wavelength magnetic anomalies from the lithospheric mantle
Physics of the Earth and Planetary Interiors, 2019 Abstract Long-wavelength magnetic anomalies (LWMA) are broad scale variations of the magnetic field that are usually observed at high altitudes with amplitudes ranging up to about 20 nT. The source of these anomalies has typically been assumed to reside within the crust with negligible contributions from the lithospheric mantle.
James A Conder +2 more
exaly +4 more sources
3D inversion of the Sichuan Basin magnetic anomaly in South China and its geological significance
Earth, Planets and Space, 2020 The Sichuan Basin magnetic anomaly is the most striking regional aeromagnetic anomaly in South China. It is characterized by a continuous large-scale linear magnetic anomaly and contains long-wavelength constituents which could still be detected on ...
Jie Wang +6 more
doaj +1 more source
Formation of Australasian tektites from gravity and magnetic indicators
Scientific Reports, 2023 The parent impact crater of Australasian tektites has not been discovered so far, but a consensus has been accepted on its location in a wider area of Indochina.
Kurosh Karimi +4 more
doaj +1 more source
Geopotential field anomalies and regional tectonic features – two case studies: southern Africa and Germany [PDF]
Solid Earth, 2016 Maps of magnetic and gravity field anomalies provide information about physical properties of the Earth's crust and upper mantle, helpful in understanding geological conditions and tectonic structures.
M. Korte, M. Mandea
doaj +1 more source