INVESTIGADORES
BJERG Ernesto Alfredo
artículos
Título:
Anomalías del campo gravitatorio y magnético terrestre en la sierra de Socoscora, provincia de San Luis
Autor/es:
KOSTADINOFF, J; BJERG, E A; RANIOLO, A; SANTIAGO, E; BJERG, E A
Revista:
Revista de La Asociacion Geologica Argentina
Editorial:
Asociación Geológica Argentina
Referencias:
Año: 2003 vol. 58 p. 505 - 510
ISSN:
0004-4822
Resumen:
The Sierra de Socoscora is a north south trending mountain range, located nortwest of the Sierra Grande of San Luis. The basament is constituted by high grade metamorphic rocks with few associated metabasites. Earth gravity and magnetic field measurements are indicative of thepresence of bigger volumes of mafic rocks below the surface, which carry anomalous concentrations of ferromagnetic and/or paramagnetic minerals (magnetite and/or sulfides). An excess of mass below this Sierra is shown by Bouguer gravimetric anomalies with magnitudes similar to those measured in the Sierra Grande de San Luis. Positive magnetic anomalies are indicative of the presence of mafic rocks with anomalous concentrations of magnetic minerals.
