Results 31 to 40 of about 597,194 (236)

DIGITAL MODELING OF GRAVITY ANOMALIES

open access: yes, 2023
The article is devoted to digital modeling of gravity anomalies, the solution of which plays an important role in the geological interpretation of the observed anomalies in gravity prospecting.
Isgаndаrov E., Jabizadeh L.
core   +1 more source

Predicting Depth of Mineral Deposit using Gravity-Density Downward Correlation by Fourier Transform

open access: yesГеофизический журнал, 2016
Residual gravity anomalies are the superposition of effects originating from several interfaces in the subsurface. In downward projection of the anomalies for the determination of the depth of the particular substructure which accounts for the bulk of ...
E. E. Epuh   +2 more
doaj   +1 more source

A method for extracting the preseismic gravity anomalies over the Tibetan Plateau based on the maximum shear strain using GRACE data

open access: yesEarth and Planetary Physics
The occurrence of earthquakes is closely related to the crustal geotectonic movement and the migration of mass, which consequently cause changes in gravity.
Hui Wang   +3 more
doaj   +1 more source

On the interpolation of high-frequency gravity field signals in mountainous areas

open access: yesContributions to Geophysics and Geodesy, 2013
The paper presents a comparison among different techniques in interpolating high-frequency gravity field signals in mountainous areas. A gap of 1◦ ×1◦ has been artificially created within the free-air gravity anomalies data set for Austria.
Hussein A. ABD-ELMOTAAL   +1 more
doaj   +1 more source

Anomalies of the Vertical Gradient of Gravity Associated with Anomalies of Gravity.

open access: yesJournal of Physics of the Earth, 1952
The gravity anomaly is necessarily associated with the anomaly of the vertical gradient of gravity. The relation between the two kinds of anomaly has been invest gated. The anomaly of the vertical gradient is sometimes too large to be neglected in the free air reduction of gravity.
openaire   +2 more sources

Mare Orientale Gravity Anomaly [PDF]

open access: yesNature, 1970
SJOGREN has reported that there is an annular negative gravity anomaly surrounding a small positive anomaly over the central basin of Mare Orientale (paper given at the NATO Advanced Study Institute on the Moon and Planets, Newcastle, April 1970). I should like to point out that outside this negative ring, there is a positive ring and perhaps further ...
openaire   +2 more sources

Prediction of gravity anomalies for geophysical exploration [PDF]

open access: yes, 2010
Interpretation of gravity anomalies (determined on the earth’s surface) reveals information on mineral resources beneath the earth. The density of gravity stations (where gravity anomalies are determined) is critical to the successful interpretation of ...
T.O Idowu, Idowu, T.O
core   +1 more source

What controls gravity anomalies in subduction zones? The relationship with plate motion and slab geometry

open access: yesProgress in Earth and Planetary Science
Subduction zones have characteristic patterns of free-air gravity anomalies: high in the arc, low in the trench, and gently high in the outer rise. In order to understand which parameters control the formation of the gravity anomalies, we investigate the
Takashi Nishizawa, Yukitoshi Fukahata
doaj   +1 more source

Multi-resolution analysis of gravity anomalies: A comparative study of modern and spherical approximation techniques

open access: yesNova Geodesia
Analysing gravity anomalies is a key method of understanding the Earth’s shape, structure, and subsurface composition. This is done by modeling the Geoid, an irregular surface, into a regular sphere or ellipsoid for easy computations.
Kolawole S. ILESANMI   +3 more
doaj   +1 more source

Evaluation of Gravity Data Derived from Global Gravity Field Models Using Terrestrial Gravity Data in Enugu State, Nigeria

open access: yesJournal of Geodetic Science, 2018
Spherical harmonic expansion is a commonly applied mathematical representation of the earth’s gravity field. This representation is implied by the potential coeffcients determined by using elements/parameters of the field observed on the surface of the ...
Apeh O.I., Moka E.C., Uzodinma V.N.
doaj   +1 more source

Home - About - Disclaimer - Privacy