Artículos de revistas
Control of strike-slip fault on dyke emplacement and morphology
Fecha
2016-07Registro en:
Spacapan, Juan Bautista; Galland, Olivier; Leanza, Hector Armando; Planke, Sverre; Control of strike-slip fault on dyke emplacement and morphology; Geological Society of London; Journal of the Geological Society; 173; 4; 7-2016; 573-576
0016-7649
2041-479X
CONICET Digital
CONICET
Autor
Spacapan, Juan Bautista
Galland, Olivier
Leanza, Hector Armando
Planke, Sverre
Resumen
Strike-slip faults are commonly assumed to influence magma transport and emplacement in the Earth’s crust. However, direct observations of magma conduits within strike-slip faults are lacking. Here we provide some of the first detailed field observations of dykes emplaced within strike-slip faults in the Neuquén Basin, Argentina. We show how fault planes within strike-slip fault zones affect the emplacement of dyke offshoots, resulting in complex dyke morphology. Our study also emphasizes the importance of pre-existing strike-slip fault array on the development of dyke swarms, showing that orientations of dyke swarms may not systematically relate to the principal tectonic stress axes.