RT Journal Article
T1 Significado de fábricas magnéticas en rocas volcánicas cuaternarias de la Isla Decepción (Shetland del Sur, Antártida)
T1 Magnetic fabric significance of Quaternary volcanic rocks of Deception Island (South Shetland Islands, Antarctica)
A1 Gil Imaz, Andrés
A1 Gil Peña, Inmaculada
A1 Galindo Zaldívar, Jesús
A1 Rey Salgado, Jorge
A1 Maestro González, Adolfo
A1 Pueyo Anchuela, Óscar
A1 Soto Marín, Ruth
A1 Oliva Urcia, Belén
A1 López Martínez, Jerónimo
AB This work deals with the magnetic fabric (AMS technique) of different lithotypes related to quaternaryvolcanism of Deception Island (South Shetland Islands). The studied rocks include lava flows from basalticto basaltic-andesitic composition, mafic dykes and several types of pyroclastic deposits. By combining theanalysis of parametric aspects of the magnetic ellipsoids and their directional pattern, four types of magneticfabrics have been recognized. Type I fabrics are related to laminar magma flow in both lava flows anddykes. The second one is related to magma reology in lava flow and tractive streams in pyroclastic deposits.Type III only identified in dikes, characterizes the imbrications of the magma flow against the dyke wall.Type IV reflects an isotropic rock-fabric and has been related to the presence of large anisotropic grains inlavas and particle fall without later modifications in pyroclastic deposits. The obtained results demonstratethe utility of AMS technique for petrogenetic model development linked to rock-fabric acquisition
PB Universidad de Huelva
YR 2010
FD 2010
LK http://hdl.handle.net/10272/7500
UL http://hdl.handle.net/10272/7500
LA spa
DS Repositorio Institucional de la Universidad de Huelva
RD 14 jul 2026