Sentences with phrase «on midocean ridges»

And the Nankai Trough sediments are starkly different from another high - temperature environment, the hydrothermal vents on midocean ridges.

Clustered there, on the midocean ridge near the Galápagos Islands, were giant clams and mussels and six - foot - long tube worms, anchored to the ground and sticking upright.

Not exact matches

The study suggests that layers of sediments perhaps 10 to 20 meters thick can seal the sea floor and make seamounts the most important conduits for heat and fluid flow — especially on the sloping flank of a midocean ridge, says oceanographer John Sclater of the Scripps Institution of Oceanography in La Jolla, California.

The new find confirms that the ancient lavas formed at midocean ridges and found throughout deep ocean basins are by volume the largest ecosystem on Earth, scientists say.

It is implausible that this much magma production — more than 40 times the annual midocean ridge magma supply — is going unnoticed, on land or beneath the sea.