<em>Oceanic and continental plates are colliding.
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<u>Explanation:</u>
The collision of the ocean and continental plates makes the oceanic plates denser by overriding them by thicker and less thick continental plates. The ocean plates are forced to move down to the mantle through a seduction process. The melting, therefore, produces magma above the sub ducting ocean plates.
The magma chambers are usually not concentrated like the mantle material within the surrounding. The depth and size of the magma can be determined by mapping the earthquake activities happening around.
The grand canyon is a steep side canyon that is formed the Colorado rover in the state of Arizona and is a 277 mile long and is 29 km wide. The Colorado River established its course about 5 to 6 million years ago and since then has been cutting the tributaries and deepening the canyon.
The upliftment lined to the mountain formation later moved the sediments thousand feet upwards and created the Colorado plateau. Causing the temperatures in the northern rimland to decrease than in the southern rim due to its greater height above elevation.
As weather varies according to the elevations the forested rims have high snowfall but the temperature at the Colorado rover is warmer, about 1,737 species of vascular planet and fungi, lichens and others are found at 24,00 meters height.