© AFP
The stretch of golf-ball-size pumice rocks was first spotted this week by a New Zealand air force plane about 1,000 kilometers (620 miles) northeast of Auckland. The rocks stretch for about 26,000 square kilometers (10,000 square miles).
© AFPA mass of small volcanic rocks nearly the size of Belgium has been discovered floating off the coast of New Zealand
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.
Pumice is made from lava and water and is very lightweight, so it poses no danger to ships. Pumice has a variety of uses: as an ingredient in concrete, polishes and scrubbing cleaners; to stone wash jeans and exfoliate skin.
Comment: More evidence of increased volcanic activity around the world. Remember, most volcanoes are underwater.
Increased evaporation due to geological changes - and not antropogenic global warming, as they tell us - may already be affecting the global weather.