A convergent plate tectonic boundary would be characterized by deep-focus earthq
ID: 105935 • Letter: A
Question
A convergent plate tectonic boundary would be characterized by deep-focus earthquakes. a trench. a volcanic island arc. a subduction zone All of the above features are typical of convergent plate boundaries. Igneous rocks are classified according to their weight and density. color and texture. crystal form and color. crystal size and chemical/mineral composition. place and depth of origin. The crust of the earth where there are continents is the same composition as most of the sea floor. includes the asthenosphere and mantle. is relatively enriched in silicon and aluminum. is not as accessible to geologists as is the mantle. is relatively enriched in silicon and magnesium. The rocks likely to form at a divergent plate boundary are basalt. usually granitic in their average composition. often exposed in great batholiths. among the rarest on earth. usually composed of non-silicate minerals. Minerals that change structure and composition during cooling of aExplanation / Answer
SOLUTION:-1.
Option (e) is correct.
A convergent boundary is when two land masses overlap each other creating a convergent boundary.At convergent plate boundaries, the plates are (for lack of a better term) squished together building mountain ranges like the Himalayas. The crust is very thick in these areas and this environment also puts alot of stress on the rocks which gives you the deep focus earthquakes.
One plate will subduct beneath the other (usually a denser, colder oceanic plate/crust beneath a warmer, lighter continental crust), and this is where crust is destroyed. As the sinking plate goes deeper into the hot mantle, it will eventually melt and become blobs of magma (magma chambers). These magma "balloons" are less dense than the surrounding rock, and so more buoyant, and will rise through the mantle and crust (lithosphere) like a very slow balloon. The magma will usually pop out of the crust somewhere, at which point the magma becomes lava, and you have a volcano. If you have crust beneath continental crust, you'll get a volcanic mountain range.
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