“The volcano is erupting in small episodes of five to 10 minutes,” Abhay Mudholkar, who is heading an NIO team which is collecting samples in the Andaman basin, said on Friday.
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“During the day, only ash clouds were observed. But after sundown, red lava foundations were spewing from the crater into the atmosphere and hot lava streamed down the slopes,” he said.
Scientists from CSIR-NIO have been surveying the basin and have identified several small submerged Volcanoes in a linear chain called a volcanic arc.
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“These volcanoes are formed due to the rising magma formed deep in the mantle due to the melting of the subducted Indian Ocean crust,” said Nath.
“A few of these submarine volcanoes have been dredged for samples and a pumice type of light volcanic rock has been recovered.”
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The volcanic island is, as the name suggests, barren and devoid of vegetation. Indian citizens can only visit the island by chartered boats after obtaining permission from the forest department in Port Blair.
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