to solve the geodetic boundary-value problem the gravity anomalies have to be continued from the earth's surface down onto the geoid surface. helmert’s gravity anomalies (multiplied by the geocentric radius) are harmonic above the geoid. it is thus possible to use them in the poisson solution of the inverse dirichlet boundary value problem to get their values on the geoid. the downward con...

[1] The Adare Trough, located 100 km northeast of Cape Adare, Antarctica, represents the extinct third arm of a Tertiary spreading ridge between East and West Antarctica. It is characterized by pronounced asymmetric rift flanks elevated up to over 2 km above the trough’s basement, accompanied by a large positive mantle Bouguer anomaly. On the basis of recently acquired seismic reflection and sh...

Structural analysis of remotely sensed data provides a method of assessing the structural significance of regional metallogenesis in the Dehaj area as the northwestern part of the Kerman porphyry Cu belt. This belt is consisted of dominant Eocene volcanics and the Dehaj type subvolcanic intrusives. In the study area, geologically, Cu-mineralization is hosted by the Kuh-e-Panj type subvolcanic i...

Generalized Derivative Operator (GDO) is one of the first-order derivative filters that could control derivative’s direction by modifying value azimuth () and dip parameters. This study aims to examine those GDO parameters on synthetic Bouguer anomaly apply them field data Silver Peak geothermal identify geological structures. We use Python programs conduct other operators such as horizontal gr...

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In this work, we present new Bouguer and residual anomaly maps of the Central Pyrenees calculated from 3590 stations, which 1141 are observations acquired surveys performed between 2018 2019. The most prominent feature is long wavelength elongated minimum in its central part that continues to W ends towards E with a positive gradient seems envelope minimum. Other short medium minima superimpose...

A gravimetric study was performed at the Cerro Machin volcano (4° 29’ N, 75° 22’ W), Tolima Department, Colombia, to obtain a density distribution of volcanic edifice and its basement. This divided into three main sections. The first section consisted measurements on volcano, which were with Scintrex Autograv CG-5 gravimeter. In second section, complete Bouguer anomaly obtained by applying corr...

Geophysical research has been carried out using the gravity method on Adonara island in east Flores Regency, East Nusa Tenggara. This study aims to determine subsurface rock geological conditions of area free air anomaly data from GGMplus and ERTM2160. The is reduced by atmospheric correction, simple bouguer curvature correction produce a complete anomaly. After regional anomalies residual are ...