The distribution of earthquakes outlines the boundaries of the earth's tectonic plates. The crust is broken up into slabs of rock called tectonic plates. There are seven major plates and many smaller ones. The boundaries of these plates, where they interact with each other is marked by earthquake activity. The plates diverge, converge or slide past each other at slow rates. The movement of the plates generates earthquakes.
I believe it is the developing front type
Schist
Option 2.
<u>Explanation:</u>
Schist is a type of a metamorphic rock but it is a medium grade of these metamorphic rocks. It is formed by the metamorphosis of the mud stone or the shale.
These type of metamorphic rocks can also be formed from igneous rocks provided these have been subjected to higher degrees of temperature or pressure. These are type of rocks which do not solidify from magma even despite subjection to intense heat and pressure.
They occur along plate boundaries.
