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InterviewSolution
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What are the following:- (a) Fissure type of volcanoes (b) Spine or plug (c) Caldera (d) Mud volcanoes(e) Epicentre(f) ‘Ring of Fire’ (g) Cinder Cone |
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Answer» (a) Some times the volcanic eruption takes place through several small holes which is known as fissure type volcanoes. (b) The volcanic cone made by the quick solidification of viscous lava and having steep slopes is known as spine or plug. (c) Caldera is the spacious crater of a volcano created by tremendous eruption. Crater lake in Oregon U.S.A occupies a caldera about 9 kilometre in diameter. (d) Mud Volcanoes — A volcanic cone made of the mud due to the eruption of muddy water is called a mud volcano. (e) Epicentre — It is the place of surface position immediately above the origin or focus of an earthquake. (f) ‘Ring of Fire’ — It is the belt around the pacific ocean where due to the weak crust 75% of active volcanoes exist forming a huge ‘ring of fire’ phenomenon. (g) Cinder Cone — The volcanic cone built of small pieces and fragments of solidified lava and ash is called ‘Cinder Cone’. |
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