Sentences with phrase «volcanic plumes»
"Volcanic plumes" refers to the columns or clouds of gas, ash, and other materials that are emitted from a volcano during an eruption. Full definition
Io's atmosphere (the reddish haze in the artist's sketch, above), which is largely made of sulfur dioxide, originates from volcanic plumes scattered around the moon (depicted as blue fountains, above).
sciencemag.org
Volcanic plume rises from the Kilauea volcano following a 6.9 - magnitude earthquake 4 May 2018 in Leilani Estates, Hawaii.
It has recorded towering volcanic plumes above Jupiter's moon Io, gathered evidence that Europa might have an ocean beneath its icy carapace, and investigated the intense radiation environment near Jupiter.
This theory is bolstered by data from interplanetary probes, which have detected large fluctuations in the sulfur content of the Venusian atmosphere, as well as radio signals reminiscent of lightning — and lightning is often found in volcanic plumes.
He and his colleagues, including Nobel laureate Mario Molina of the Massachusetts Institute of Technology, mimicked the highly charged volcanic plumes from that era with a lab mixture of water vapor, carbon dioxide, and other gases exhaled today by Hawaiian volcanoes, which tap primitive magma deep in Earth's mantle.
The probe's first close encounter with the large moon Rhea was somewhat eclipsed by a sidelong snapshot of the moon Enceladus, revealing active volcanic plumes above its surface.
«We've discovered volcanic plumes at Io, a liquid ocean in Europa, seas and rain and rivers and volcanoes — like it came out of a geomorphic textbook on the Earth — on Titan,» he says.»
Volcanic eruptions emit sulfate aerosols via volcanic plumes, which may stay in the stratosphere for months to years, reflecting sunlight back into space, cooling the Earth's lower atmosphere or troposphere over a long time...
In particular, specific processes exist that challenge the view of sedimentation of fine particles from volcanic plumes and that are currently poorly understood: particle aggregation and gravitational instabilities.
It is conventionally thought that a volcanic plume rises straight up and spreads out in a rough circle.
Ground - based remote sensing through ultraviolet and infrared spectroscopy is used to measure the composition of a volcanic plume, the column of hot volcanic ash, gas, and rock emitted when the volcano erupts.
Depending on the size and depth of an underwater eruption, gas and ash may never break the ocean surface, or the gas and ash could create a volcanic plume with the potential to interfere with air travel.
In the Galapagos, however, the volcanic plume has decoupled from the plates involved.
Volcanic plumes were ideal crucibles for sparking stable nitrogen to form reactive compounds that led to the first organic molecules, chemists report in the 15 August Geophysical Research Letters.
On Sunday, 27 November, Cassini was positioned so that the Sun was behind the moon, causing one side of Enceladus to be illuminated as a fine crescent, with its volcanic plumes backlit.
«We now know that we can detect the presence of a volcanic plume» at night and before it can be detected visually, he says.
Between 50 - 100 million years ago, the edge of the pile under the north Pacific was pushed rapidly southward, along with the base of Hawaii's volcanic plume, causing it to tilt.
Steve McNutt, a team member at the University of Alaska, US, believes the work will prove useful as an added dimension of hazard assessment, especially in issuing advisories for planes, which can be severely damaged by flying through volcanic plumes.
This illustration shows Io, the most volcanically active object in the solar system, reconstituting its atmosphere with volcanic plumes.
Earth's sands can also become charged, typically when they are blown aloft in sandstorms or volcanic plumes.
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.
If in fact the volcanic plume broke through the ice a cloud would immediately form and not disperse until the ocean refroze.
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.