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What is metamorphic zone and its types? What is Metamorphic facies? What is grades of metamorphism? What are the texture of metamorphic rocks?

  Metamorphic Zone and Metamorphic facies: Metamorphic zone is an area where the same combination of minerals occurs in the bedrock during the metamorphism process. Metamorphic zones occur because metamorphic minerals have a unique range or interval of temperature and pressure at which they are stable. There are three types of metamorphic zones- 1)       Epizone: This zone of metamorphism occurs near the earth’s surface. In this zone, generally Cataclastic metamorphism conditions are observed. 2)       Mesozone: It is the intermediate zone of metamorphism, which is found below the Epizone. The mesozone condition that is the temperature and pressure promotes the regional metamorphism. 3)       Katazone: The bottommost metamorphic zones are known as Katazone. In this zone, the plutonic metamorphism is taken place.   Grades of metamorphism: The degree or intensity of metamorphism that has affecte...
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What is a volcano and how a volcano is formed?

                                             Answer:  A volcano is a dome or conical-like structure, which is formed due to volcanic eruption at the divergent plate boundary.             In simple words, volcanoes are formed due to volcanic eruptions.           Due to the decay of radioactive substances beneath the surface of the earth or in the earth’s mantle, a large amount of heat produced below the earth's surface, which melts the rocks slowly and forms a thick flowing layer of substance is called magma (consisting of the mixer of minerals, water vapor, different kinds of dissolved gases like carbon dioxide, sulfur, carbon monoxide, etc. Magma continuously exerts pressure on the earth's surface to escape from the earth's mantle. As a result, the surface of the earth becomes we...
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What is The Orbital and the Rotational characteristic of The Earth?

                         Before knowing about the orbital and rotational characteristics of earth we need to know about our earth. So, our earth is a member of the solar system. It is the third planet from the sun. It is only the planet known to have an atmosphere containing free oxygen, oceans of water on its surface, and life.     Orbital characteristics of the earth:     An orbit is a cyclic, regular and repeating path, by which one object revolves around another one. In our solar system, a large number of orbit present around the sun, and the objects (including the planets and their moons, dwarf planets, asteroids, comets, and so on) orbit it directly or indirectly.       The orbit of our earth planet is not a perfect circle, but it rather has the character of an oval-shaped ellipse. Because the two largest gas giant planets of our solar system exert a small gravitation...
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