Results 11 to 20 of about 109,361 (292)
Airborne (or satellite) gravity measurement is a commonly used remote sensing method to obtain the underground density distribution. Airborne gravity gradiometry data have a higher horizontal resolution to shallower causative sources than airborne ...
Guoqing Ma +5 more
doaj +1 more source
The improvement of sparsity gravity inversion using an adaptive lanczos bidiagonalization method
Inversion of gravity data is one the important steps in the interpretation of practical data. The detection of sharp boundaries between anomalous bodies and host rocks is an interesting point in the geological frameworks.
Meng Zhaohai +7 more
doaj +1 more source
A Fast Forward and Inversion Strategy for Three-Dimensional Gravity Field
Obtaining a three-dimensional (3D) density distribution within a reasonable time is one of the most critical problems in gravity exploration. In this paper, we present an efficient 3D forward modeling and inversion method for gravity data.
Jianke Qiang +3 more
doaj +1 more source
Currently, seafloor topography inversion based on satellite altimetry gravity data provides the principal means to predict the global seafloor topography. Researchers often use sea surface geoid height or gravity anomaly to predict sea depth in the space
Diao Fan +4 more
doaj +1 more source
Mineral Exploration Potential Estimation Using 3D Inversion: A Comparison of Three Different Norms
Gravity data have been frequently used in researching the subsurface to map the 3D geometry of the density structure, which is considered the basis for further interpretations, such as the estimation of exploration potential in mineral exploration.
Tao Chen, Guibin Zhang
doaj +1 more source
重力異常データのカラムインバージョンから見積もったモホ不連続面の形状 [PDF]
We present an inversion method, called "column inversion", to retrieve two-dimensional variation of the depth to the Moho discontinuity from Bouguer gravity anomaly data, assuming that a density jump between the lower crust and upper mantle is regionally
Fukunaga, Mariko +2 more
core +1 more source
Spectral methods in gravity inversion: the geopotential field and its derivatives
The 3D spectral analysis of the gravitational potential field for a given mass distribution is studied. The derived quantities, the gravitational force field and the gravity gradient tensor are computed in frequency space.
C. Braitenberg, M. Zadro
doaj +1 more source
Seabed topography beneath Larsen C Ice Shelf from seismic soundings [PDF]
Seismic reflection soundings of ice thickness and seabed depth were acquired on the Larsen C Ice Shelf in order to test a sub-ice shelf bathymetry model derived from the inversion of IceBridge gravity data.
A. M. Brisbourne +5 more
doaj +1 more source
3-D multiobservable probabilistic inversion for the compositional and thermal structure of the lithosphere and upper mantle: III. Thermochemical tomography in the Western-Central U.S. [PDF]
Acknowledgments We are indebted to F. Darbyshire and J. von Hunen for useful comments on earlier versions of this work. This manuscript benefited from thorough and constructive reviews by W. Levandowski and an anonymous reviewer.
Aoki K. +10 more
core +2 more sources
Underground 3D density variation can be obtained via the inversion of gravity data, which is a very important basis for structural division, oil and gas structure definition, and mineral resource evaluation.
Guoqing Ma +4 more
doaj +1 more source

