INVESTIGADORES
ALVAREZ PONTORIERO Orlando
artículos
Título:
Anomalous Values of Gravity and Magnetism in the Western Margin of Gondwana
Autor/es:
WEIDMANN CECILIA; MARIO GIMÉNEZ; FEDERICO LINCE KLINGER; ALVAREZ ORLANDO
Revista:
TECTONOPHYSICS
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2016 vol. 667 p. 1 - 15
ISSN:
0040-1951
Resumen:
This research is based on a joint geological and geophysical study performed in the South Central Andes region.We acquired and processed terrestrial and satellite gravity data, as well as terrestrial and aeromagnetic data.Balanced geological cross-sections were constrained by physical properties of rocks (densities and magneticsusceptibilities obtained from field samples and well log). This study was performed in order to interpret a complexregion that is still under debate: the location of Famatinian magmatic arc and its boundary with the Cuyaniaterrain. By means of gravity anomaly we developed direct and inverse models constrained by field data. Theexistence of a major high-density geological structure was evidenced from these models, located below theVinchina basin and to the east of Cerro Rajado respectively. The existence of such gravity high could be linkedto the boundary between the Famatinian magmatic arc and the accreted Cuyania wedge
