A constructive boundary is where to plate boundaries separate apart just like when the north American plate (San Andreas fault USA )
-divergent boundry -convergent boundry -transforming boundry
lava dried out makes rock that's one example
constructive
Yes. It is believed to have erupted in 2010 twice because of the constructive margin. The plates were pulled apart by convection currents then because of this basalt lava seeps in to form a new crust beneath the sea and existing volcano. Much of the magma was intruded as dolerite dykes (thin sheets of igneous rock.) New lava and dykes then added extra crust at each side of the spreading ridge.
constructive
A destructive plate boundary :)
The San Andreas fault -- the boundary between the Pacific and North American plates
-divergent boundry -convergent boundry -transforming boundry
The boundry type that adds to the lithospere is the Divergent boundry.
Convergent boundry
the boundry formed by the collision of 2 lithosphere plates
plate boundry has four different parts. # conservative boundary. # constructive boundary. # destructive boundary. # collision boundary.
lava dried out makes rock that's one example
The Nubian/African boundry and the Somalian boundry
constructive
Boundry line Atlantic and gulf of mexico
constructive