RT Journal Article
T1 Fábrica magnética (ASM) de diques andesíticos autunienses con enclaves corticales del sector de Maicas (Anticlinal de Montalbán, Cadena Ibérica Oriental)
T1 Magnetic fabric (AMS) of autunian andesitic dykes with crustal xenolithes in the Maicas sector(Montalbán Anticline, Eastern Iberian Chain)
A1 Gil Imaz, Andrés
A1 Lago San José, Marceliano
A1 Pueyo Anchuela, Óscar
A1 Galé, Carlos
AB The Montalban Anticline (Eastern Iberian Chain) represents a matchless framework of Autunianhypovolcanic calc-alkaline (dykes and sills) intrusions within the Iberian Chain. In the Maicas sector (NO ofMontalban Anticline) the dykes contain several types of metamorphic and granitic xenolites from a deeporigin. The xenolites can be considered as passive markers and thus the dykes of this sector constitute veryinteresting bodies in order to determine both the flow regime characteristics and the related stress regime.The application of the anisotropy of the magnetic susceptibility technique (AMS) to one dyke of the Maicassector, where a high content in metamorphic and granitic xenolites occur, reveals a geometrical pattern ofboth the magnetic foliation and lineation within the dyke which is consistent with a turbulent flow regimelinked to the xenolites emplacement. The obliquity between the mean magnetic lineation and the dykewall, strongly suggest an emplacement mode of the magma linked to an oblique extension regime whichis consistent with the structural Autunian framework in the Iberian Chain
YR 2009
FD 2009
LK http://hdl.handle.net/10272/8039
UL http://hdl.handle.net/10272/8039
LA spa
DS Repositorio Institucional de la Universidad de Huelva
RD 30 may 2026