NASA scientists discover underwater rock size of Manhattan carrying 'damaging' species

NASA experts believe a pumice raft “the size of Manhattan” was formed as a result of an underwater volcanic eruption. Simon Boxall, Principal Teaching Fellow at the National Oceanography Centre, also claimed the huge mass could cause “damage” to the Great Barrier Reef. The pumice raft could also save the Great Barrier Reef, however, by helping to “re-seed” the dying coral reef. The Great Barrier Reef has been dying at an astonishing rate, with a 50 percent decline in coral cover between 1985 and 2012, according to the Barrier Reef Foundation.

He told Sky News: “As it’s moving north, it’s estimated it will take maybe a month or two to get to Fiji.

“But the thought is at the moment from Queensland University of Technology, is that as the raft moves further on it moves around the currents towards the Great Barrier Reef.

“One hope is as it’s doing so, this raft material at the surface starts to pick up marine life, things grow on it, the same way algae grows on boats just left in the water.

“So they’ll get these polyps which form like they’re the seeds of a reef. So the hope is that these seeds of a coral reef will eventually drift towards Australia and could help to re-seed parts of the Great Barrier Reef, which is dying.

READ MORE: Huge underwater volcano eruption of pumice raft could save Great Barrier Reef

“Now there’s a downside to this, and the downside is that raft material could also carry alia species which could cause damage. Time will tell whether this is a good thing or a bad thing for the Great Barrier Reef.”

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Earlier in the interview, Sky News presenter Kay Burley said: “Sailors are being warned to take care around Tonga, after a pumice raft the size of Manhattan formed in the ocean.

“The huge mass has been floating in the Pacific Ocean for two weeks, but scientists are still debating exactly where it came from. Experts from NASA believe the raft is a result of an underwater volcanic eruption.”

Mr Boxall further explained: “Pumice is formed as you undergo an undersea volcanic eruption. The molten rock, which is incredibly hot, as it comes out of the ground it’s releasing pressure.

“These float and form this huge raft of over 150 square km, which is drifting north towards Fiji in the ocean currents.”

A submarine volcano near the Polynesian island of Tonga in Oceana exploded two weeks ago, creating ash and stone debris in the Pacific which is heading towards the Great Barrier Reef.

NASA stated that it is the first time the volcano has erupted since 2001.

The NASA Earth Observatory wrote: “On August 13, 2019, the Operational Land Imager on Landsat 8 acquired natural-colour imagery of a vast pumice raft floating in the tropical Pacific Ocean near Late Island in the Kingdom of Tonga.

“NASA’s Terra satellite detected the mass of floating rock on August 9; the discoloured water around the pumice suggests that the submarine volcano lies somewhere below.

“By August 13, the raft had drifted southwest. As of August 22, the raft had moved north again and was a bit more dispersed, but still visible.”

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