Srikanta nayak Asked a Question
April 19, 2021 5:24 pmpts 30 pts
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  • Vaibhav jain thankyou
    When this less buoyant magma hits the surface it punctures the lithosphere and expells hot magma in a radial form like a cone. cross section of which is an arc shape.
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  • Vaibhav singh Best Answer
    Island arcs ir Volcanic Islandic arc are nothing but Volcanic mountain chains .They are Oceanic equivalent of Continental Volcanic arcs. Island arcs are formed at ocean-ocean conve...
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  • Vaibhav jain
    Island arcs are formed in a subduction setting where an oceanic plate subducts into mantle which on partial melting rises upto the surface in the form of plumes. Island arcs are t...
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    Srikanta nayak
    But again sir...how arc shaped volcano formed..
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