A new physical theory entitled “Yield and Strength Theory of Materials” is applied to a simple model of the earth, allowing a better understanding of volcanic phenomenon.  In particular, growing and dismantle of volcanic edifices like Canary Islands.  Liquid magma is generated by rock extrusion at the Gutenberg boundary.  This happens by mechanical failure of the deep lower mantle induced by the large difference between the tangential and radial stresses.

    The magma violently escapes from the outer core producing a cyclone movement in the ionized liquid magma that is responsible for earth magnetic variations.  Magma rises by dykes progress up to 800 km above D”.  From this height up to Lehmann’s discontinuity (231 km depth), magma rises by blob extrusion with preferred direction between 45° and 90° with zenith.  At this discontinuity, a very think melted layer is responsible for strong scattering of s and p waves at 15ª surface.

    This liquid discontinuity marks the bottom of the Asthenosphere.  Magma blobs are absorbed by this layer producing deformation of the asthenosphere, heat flow to the surface and faults aperture.  Hydromagmatic processes take place at rifts in the mid ocean and produce the island elevation above the crust.  The first state of island growing allows fluid magma to open the way up to the surface though dykes.  Hence the first aerial emissions produce shielded volcanos...

Abstract:

“Suggested Mechanism for Growth and Dismantle of Volcanic Islands”