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Gravity anomalies over extinct spreading centres: A new evidence of an aborted ridge in the South Atlantic Ocean
(2019-01-01)
An aborted ridge has been suggested in the Vema region, South Atlantic Ocean, and we investigate it in terms of residual gravity anomalies and half spreading rate. Gravity signature over extinct spreading centres displays ...
Interpreting gravity anomalies in south cameroon, central africa
(UNIVERSIDAD NACIONAL DE COLOMBIA, 2012)
The area involved in this study is the northern part of the Congo craton, located in south Cameroon, (2.5°N - 4.5°N, 11°E - 13°E). The study involved analysing gravity data to delineate major structures and faults in south ...
GOCE satellite derived gravity and gravity gradient corrected for topographic effect in the South Central Andes region
(Wiley Blackwell Publishing, Inc, 2012-08)
Global gravity field models, derived from satellite measurements integrated with terrestrial observations, provide a model of the Earth's gravity field with high spatial resolution and accuracy. The Earth Gravity Model ...
Gradient-boosted equivalent sources
(Wiley Blackwell Publishing, Inc, 2021-12)
The equivalent source technique is a powerful and widely used method for processing gravity and magnetic data. Nevertheless, its major drawback is the large computational cost in terms of processing time and computer memory. ...
Circular structures of Bajada del Diablo (Argentina): Geophysical signatures
(Oxford University Press, 2016-05)
Bajada del Diablo is located in the Northern Patagonian Massif, Chubut, Argentina. The study area includes several circular structures found in Miocene olivine basalts of the Quiñelaf Eruptive Complex and in the Late ...
Gravitational field calculation in spherical coordinates using variable densities in depth
(Wiley Blackwell Publishing, Inc, 2019-09)
We present a new methodology to compute the gravitational fields generated by tesseroids (spherical prisms) whose density varies with depth according to an arbitrary continuous function. It approximates the gravitational ...
GEOMETRICAL CONFIGURATION OF THE GAROUA BASIN, NORTH CAMEROON AS DEDUCED FROM EARTH GRAVITATIONAL MODEL (EGM-2008)CONFIGURAÇÃO GEOMÉTRICA DA BACIA DE GAROUA, NORTE DO CAMEROON COMO DEDUZIDO DO EARTH GRAVITATIONAL MODEL (EGM-2008)
(Centro de Ciências Matemáticas e da Natureza, Instituto de Geociências, Universidade Feder, 2019)
Heterogeneous structure of the Northern Chile marine forearc and its implications for megathrust earthquakes
(Oxford University Press, 2018)
Recent studies have proposed that nucleation zones, seismic barriers and high-slip patches of megathrust earthquakes correlate with physical heterogeneities, both in the oceanic/subducting plate and in the continental ...
Density and Thermal Structure of the Southern Andes and Adjacent Foreland from 32° to 55°S Using Earth Gravity Field Models
(Springer Earth System Sciences, 2016-01)
GOCE satellite data and EGM2008 model are used to calculate the gravity anomaly and its vertical gravity gradient, both corrected by the topographic effect, in order to delineate main tectonic features related to density ...
3D Process-Oriented Gravity Modelling applied north of 49°S on the Argentine continental margin
(Pergamon-Elsevier Science Ltd, 2018-01)
The Process-Oriented Gravity Modelling (POGM) technique represents a useful way to distinguish the contribution that different geological processes make to the observed gravity in passive margins. The POGM is an innovative ...