A navy ship took scientists to the rocks on Thursday night. Naval Lt. Tim Oscar says the rocks appeared a brilliant white under a spotlight, like a giant ice shelf.
He says it's the "weirdest thing" he's seen in 18 years at sea.
Scientists say the rocks likely spewed up in an eruption by an underwater volcano. They don't believe the eruption is connected to the onshore ash eruption this week of another volcano, Mount Tongariro.
The Defence Force says the mass of rocks stretches 250 nautical miles by 30 nautical miles.
Edited by jugoso, 10 August 2012 - 09:46 PM.