Higgins Michael D.. (1990). A three-component composite dyke and its associated intrusion, Pointe du Criard, Québec, Canada. Dans Mafic Dykes and Emplacement Mechanisms. (p. 63-68). Boca Raton, Florida, United States : CRC Press.
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Résumé
A three-metre-wide composite dyke made up of approximately equal quantities of diabase (at the rim), leucogabbro, and syenite, feeds a sill at least 50 m thick that is 98% syenite. The intrusion was initiated by a diabase dyke and this conduit was then exploitex by a leucogabbro, and finally a syenite. All components were probably derived from different magma chambers. Initiation of intrusions by dykes of low-viscosity magma, such as diabase, may be important elswhere, especially for the case of acidic magmas which may otherwise be restrained by their viscosity.
| Type de document: | Chapitre de livre |
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| Date: | 31 Août 1990 |
| Lieu de publication: | Boca Raton, Florida, United States |
| Sujets: | Sciences naturelles et génie > Sciences naturelles > Sciences de la terre (géologie, géographie) |
| Département, module, service et unité de recherche: | Départements et modules > Département des sciences appliquées > Unité d'enseignement en sciences de la Terre |
| Éditeurs: | Parker, A. J. Rickwood, P. C. Tucker, D. H. |
| Mots-clés: | Digue composite à trois composantes, intrusion, Pointe du Criard, Québec |
| Déposé le: | 10 juill. 2018 15:43 |
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| Dernière modification: | 10 juill. 2018 15:43 |
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