Sentences with phrase «from volcanic plumes»

From those ice cores she has found traces of sulfuric acid (defined) from volcanic plumes and extracted microscopic «shards» of volcanic dust, some more than 20,000 years old.

Not exact matches

Scientists studying volcanic hotspots have strong evidence of this, finding high helium - 3 relative to helium - 4 in some plumes, the upwellings from Earth's deep mantle.

SAN FRANCISCO — The «hot spot» of volcanic activity that created Hawaii, long regarded as a fixed plume of magma from deep inside Earth, might have swayed like chimney smoke in a gentle breeze between 80 million and 50 million years ago.

«Here's an archipelago of volcanic islands that are broadly active over a large region, and the plume is almost decoupled from the plate motion itself,» Toomey said.

A plume of hot rock might rise from just above the 670 to form a volcanic hot spot like Hawaii.

The latest theory is that a giant, lopsided plume of hot rock tore through the lunar interior some 3.5 billion years ago, smothering the Earth - facing side with enormous volcanic flows that erupted from the interior.

These datasets will be used to improve strategic and hazard - warning capabilities of events in near real - time, such as tracking plumes from dust storms, volcanic eruptions, and wildfires.

Slow - moving seismic waves, hotter than surrounding material, interact with plumes rising from the mantle to affect the formation of hotspot volcanic islands.

Volcanic seamount chains such as Hawaii were created from magma produced near the surface by mantle plumes.

On Io, which orbits at about the same distance from the planet as the Earth to the moon, the heat is so intense that it triggers sulfurous plumes from massive volcanic vents, which spew into space.

Washington, DC — Plumes of hot magma from the volcanic hotspot that formed Réunion Island in the Indian Ocean rise from an unusually primitive source deep beneath the Earth's surface, according to new...

I won't argue that our added gases may contribute to the warming to some very, very small degree, but keep in mind, the ash plume from a good volcanic eruption such as the last big Pinatubo eruption eclipses into insignificants the amount of pollutants added to the atmosphere by human activity.

Assuming that the plumes detected by HST over Europa's south pole exists, it may be possible to adapt hardware designed for the proposed Discovery - class LIFE (Life Investigation For Enceladus) mission, which would return samples from the plumes of Enceladus, for returning samples from Europa and possibly the volcanic plumes of Io as well as the outer rings of Jupiter as a bonus.

Washington, DC — Plumes of hot magma from the volcanic hotspot that formed Réunion Island in the Indian Ocean rise from an unusually primitive source deep beneath the Earth's surface, according to new work in Nature from Carnegie's Bradley Peters, Richard Carlson, and Mary Horan along with James Day of the Scripps Institution of Oceanography.

Now is visited by tourist from all around the world hoping for the opportunity to witness volcanic activity, such as the white plumes of smoke that emanate from the conical shaped behemoth.

I won't argue that our added gases may contribute to the warming to some very, very small degree, but keep in mind, the ash plume from a good volcanic eruption such as the last big Pinatubo eruption eclipses into insignificants the amount of pollutants added to the atmosphere by human activity.

Plumes of hot magma from the volcanic hotspot that formed Réunion Island in the Indian Ocean rise from an unusually primitive source deep beneath the Earth's surface, according to new work in Nature from Carnegie's Bradley...

Some 30 years ago, a scientist at the University of Colorado Denver suggested that heat from a mantle plume under Marie Byrd Land might explain regional volcanic activity and a topographic dome feature.

Also, note that aerosol droplets from volcanic eruptions are much more dispersed than those from say aircraft exhaust plumes that do produce a form of cirrus clouds under certain conditions.