Magnetic anisotropy produced by magma flow: Theoretical model and experimental data from Ferrar dolerite sills (Antarctica)

• Published in: Geophysical Journal International
• Main Authors: DRAGONI M, LANZA R, TALLARICO, Andrea
• Other Authors: Dragoni, M, Lanza, R, Tallarico, Andrea
• Format: Article in Journal/Newspaper
• Language: English
• Published: 1997
• Subjects: Bingham; East Antarctica; Victoria Land; Antarc*; Antarctica
• Online Access: http://hdl.handle.net/11586/40729; https://doi.org/10.1111/j.1365-246X.1997.tb04083.x

Volcanic rocks forming sills, dykes or lava flows may display a magnetic anisotropy derived from the viscous flow during their emplacement. We model a sill as a steady-state how of a Bingham fluid, driven by a pressure gradient in a horizontal conduit, The magma velocity as a function of depth is ca...