Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/4974
Título: Evidence for non-coaxiality of ferrimagnetic and paramagnetic fabrics, developed during magma flow and cooling in a thick mafic dyke
Autor: Silva, Pedro Manuel de Almeida Carvalho da
Marques, F. O.
Machek, M.
Henry, B.
Hirt, A. M.
Roxerova, Z.
Madureira, P.
Vratislav, S.
Palavras-chave: Paramagnetic
Ferrimagnetic
Fabrics
Microstructures
Dyke Emplacement
Stress Field
Data: Ago-2014
Editora: Elsevier Science BV
Citação: SILVA, Pedro Manuel Fernandes Carvalho da; [et al] – Evidence for non-coaxiality of ferrimagnetic and paramagnetic fabrics, developed during magma flow and cooling in a thick mafic dyke. Tectonophysics. ISSN: 0040-1951. Vol. 629 (2014), pp. 155-164
Resumo: A detailed analysis of fabrics of the chilled margin of a thick dolerite dyke (Foum Zguid dyke, Southern Morocco) was performed in order to better understand the development of sub-fabrics during dyke emplacement and cooling. AMS data were complemented with measurements of paramagnetic and ferrimagnetic fabrics (measured with high field torque magnetometer), neutron texture and microstructural analyses. The ferrimagnetic and AMS fabrics are similar, indicating that the ferrimagnetic minerals dominate the AMS signal. The paramagnetic fabric is different from the previous ones. Based on the crystallization timing of the different mineralogical phases, the paramagnetic fabric appears related to the upward flow, while the ferrimagnetic fabric rather reflects the late-stage of dyke emplacement and cooling stresses. (C) 2014 Elsevier B.V. All rights reserved.
Peer review: yes
URI: http://hdl.handle.net/10400.21/4974
DOI: 10.1016/j.tecto.2014.04.017
ISSN: 0040-1951
1879-3266
Aparece nas colecções:ISEL - Física - Artigos

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