Planetary volcanism Essay Example | Topics and Well Written Essays - 500 words

Planetary vol give the gateism - Essay ExampleBecause of very high temperature in the inner core of the earth, the interior material is usually in molten pronounce (Greeley, 2013). When both plates move further apart, the earths interior materials progressively rise up and occupy the vents created by plate movement. Magma chambers may as well form in cases where plate move over each other. Despite the fact that volcanism on earth usually takes place at boundaries between plates, it can also happen at the calorificspots within the plates interiors. Very high temperature of the earths interior causes materials within the inner part to melt. This molten material is whence ejected to the earths surface under high pressure. When magma reaches the surface of the earth, it solidifies into thick lava, which eventually forms volcanic rocks. Volcanoes on earth are mainly categorized into two shield and composite volcanoes (Greeley, 2013).Evidences of volcanism have also been noticed in th e Earths moon. The moon is characterized by small volcanoes, crevices as well as far-flung basalt lava flows (Greeley, 2013). The moons large and dark basins, often called the mare, are flows of lava. However, there exist no sign of active volcano on the moons surface and all the evidences of volcanoes are archaic. Volcano in the planet moon, occurred millions of years ago and no new volcanic activity has been observed in the recent past.Mars also has exhibits of volcanism. The planet has volcanic features that are akin to those on Earth, but a bit larger. Mars has shield volcanoes with Olympus Mons (22 kilometers) being the solar systems tallest volcano. The Tharsis region hosts most volcanoes in Mars (Kusky, 2005). Similar to volcanoes on Earth, the volcanoes in Mars are believed to have formed from materials ejected from the deep and hot interior of the planet. Unlike the Moon, many scientists believe Mars has active volcanoes. Basalt meteorites are perfect