Fracture and compaction of andesite in a volcanic edifice

• Published in: Bulletin of volcanology Vol. 77; no. 6; pp. 55 - 19
• Main Authors: Heap, M. J., Farquharson, J. I., Baud, P., Lavallée, Y., Reuschlé, T.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.06.2015; Springer Nature B.V; Springer Verlag
• Subjects: Compaction; Deformation; Earth and Environmental Science; Earth Sciences; Fractures; Geology; Geophysics; Geophysics/Geodesy; Lava; Mechanics; Mechanics of materials; Mineralogy; Permeability; Physical properties; Physics; Pore size; Porosity; Research Article; Rocks; Sciences of the Universe; Sedimentology; Volcanoes; Volcanology; Mexico, Colima; Shear fracture; Outgassing; Pore collapse; Brittle; Stratovolcano; Inelastic compaction; Edifice stability; Volcán de Colima; Permeability

The failure mode of lava—dilatant or compactant—depends on the physical attributes of the lava, primarily the porosity and pore size, and the conditions under which it deforms. The failure mode for edifice host rock has attendant implications for the structural stability of the edifice and the effic...