Sentences with phrase «of midocean ridges»

Perched near the hot seams of some midocean ridges are curious pillars of lava, like Greek columns, many of them 45 feet tall.

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.

Not exact matches

Gregg and Chadwick developed a computer model of a lava flow from a midocean ridge.

A rugged chain of volcanic mountains, the midocean ridge, runs down the center of the Atlantic, around Africa into the Indian Ocean, between Australia and Antarctica, and across the South Pacific, then up the East Pacific to California, where it becomes the San Andreas Fault.

``... the molten rock oozing from midocean ridges lacks much of the uranium, thorium, and other trace elements that spew from some aboveground volcanoes.»

Welcome to one of the planet's most obscure but important features, known rather prosaically as the midocean ridges.