posted on Dec, 13 2012 @ 02:08 PM
reply to post by LordDrakula
I am not sure if this is what you mean, I am not an expert but I found this picture resembling two plates cracking.
When A Continental And Oceanic Plate Collide
When a continental plate and an oceanic plate collide, subduction occurs. The oceanic plate sinks under the continental plate as it is denser. The
crust carrying the ocean melts underneath at the subduction zone due to the immense friction and high heat of the magma, which is acidic with higher
silican and sulphuric content.
The impact of the collision also causes cracks to form in the crust. The heat and pressure from the mantle forces the acidic magma to rise up these
cracks. As the magma continues to rise up the cracks, it escapes onto the surface and solidifies, building up a volcano. Magma on the surface is now
known as lava. Thus, an acid lava volcano is formed.
The converging of the oceanic and continental plate also cause deep oceanic trenches and fold mountains to form
Convergent Plate Movement
edit on 13-12-2012 by citizenoftheworld because: provided link