A recently discovered solitary
ice volcano on the dwarf planet Ceres may have some hidden older siblings, say scientists who have tested a likely way such mountains of icy rock — called cryovolcanoes — might disappear over millions of years.
In science news around the world, NASA scientists spot evidence for
ice volcanoes on the surface of Pluto, transmission of the Ebola virus comes to an end in Sierra Leone, Canada's new minister of innovation, science, and economic development reinstates the country's long - form census and announces that government scientists are free again to speak to the media, the United Kingdom's House of Commons Science and Technology Committee calls for a strategy to increase government research funding, and more.
The upcoming visual exploration of Pluto will fill in knowledge gaps, possibly revealing craters or
ice volcanoes on the dwarf planet.
Kattenhorn and Prockter saw
ice volcanoes on the overriding plate, possibly formed through melting and absorption of the slab as it dove below the surface, and a lack of mountains at the subduction zone, implying material was pushed into the interior rather than crumpled up as the two plates mashed against each other.
Not exact matches
The lighting storms, thunder, rain, wind, hurricanes,
volcanoes, earthquakes, tornadoes, tsunamis, snow and
ice, heat and drought, death, illness, blindness, deafness, this list could go
on and
on.
Has to be walking across the top of a
volcano with Kit and Ozzy trying to explain why there was
ice on there when hot steam was coming out of the ground!
Each
volcano's magnitude and its impact
on climate can be estimated from the amount of sulfate deposited in the
ice.
And India is teaming up with the United States
on a $ 1 billion satellite mission slated for launch in 2021 that will monitor natural disasters like earthquakes and erupting
volcanoes and more gradual but potentially calamitous processes like melting
ice caps.
Ceres has no atmosphere, so the processes that wear down
volcanoes on Earth — wind, rain and
ice — aren't possible
on the dwarf planet.
Glaciers
on early Earth could have scooped up mineral dust;
volcanoes could have rained ash onto nearby sea
ice.
Another explanation is cryovolcanism, in which
ice and water are forced out of the surface by processes similar to those that drive magma
volcanoes on Earth.
Finding a layer of ash in the
ice wouldn't be surprising: the West Antarctic Ice Sheet straddles a broad continental rift that is known to harbor volcanoes, some of them exposed on the surface and others sealed under i
ice wouldn't be surprising: the West Antarctic
Ice Sheet straddles a broad continental rift that is known to harbor volcanoes, some of them exposed on the surface and others sealed under i
Ice Sheet straddles a broad continental rift that is known to harbor
volcanoes, some of them exposed
on the surface and others sealed under
iceice.
After comparing it with domes
on Earth, scientists now believe Ahuna Mons formed when a slushy mix of internal
ice and natural antifreeze reached the surface along a duct — just as magma builds
volcanoes on our planet.
Once
on Ceres» surface, the Slurpee - like material couldn't flow far, and it slowly built up a 3 - mile - high
ice volcano.
Their instruments are zeroed in
on the Amundsen Sea Embayment, a vast region rich in
volcanoes,
ice shelves and glaciers, some as big as Washington state.
How the glassy grains formed
on Mars is unknown, but Horgan says magma from Martian
volcanoes interacting with water
ice and snow is a possibility.
Ice over Iceland's rumbling Bardarbunga
volcano has melted to reveal a row of 1 - km wide «cauldrons», possibly due to a sub-glacial eruption, the country's meteorological office said late
on Wednesday.
About 750 years ago, a powerful
volcano erupted somewhere
on Earth, kicking off a centuries - long cold snap known as the Little
Ice Age.
The flybys produced superb images of the surfaces of Jupiter's large Galilean satellites, revealing sulphurous
volcanoes on Io,
ice chasms
on Europa, huge ringed impact craters
on Callisto, and polygonal dark regions
on Ganymede.
Researchers at The Ohio State University and their colleagues have discovered that the same hotspot that feeds Iceland's active
volcanoes has been causing them to underestimate
ice loss
on Greenland.
The same hotspot in Earth's mantle that feeds Iceland's active
volcanoes has been playing a trick
on the scientists who are trying to measure how much
ice is melting
on nearby Greenland.
Using all available geologic, tectonic and geothermal heat flux data for Greenland — along with geothermal heat flux data from around the globe — the team deployed a machine learning approach that predicts geothermal heat flux values under the
ice sheet throughout Greenland based
on 22 geologic variables such as bedrock topography, crustal thickness, magnetic anomalies, rock types and proximity to features like trenches, ridges, young rifts,
volcanoes and hot spots.
Researchers in the Greenland GPS Network, led by Michael Bevis at The Ohio State University, have discovered that the same hotspot that feeds Iceland's active
volcanoes has been causing scientists to underestimate
ice loss
on Greenland.
For example, a thick rigid
ice shell makes it very difficult to produce
ice volcanoes, which some have proposed to explain certain features seen
on the surface.
For fourteen more orbits, the spacecraft focused
on ice, water, and fire: the icy moon Europa, which might have an ocean; Jupiter's majestic thunderstorms; and the fiery
volcanoes of Io.
The abstract doesn't have the room to provide more information
on how the melting of glacial
ice has weakened part of the
volcano, leading to an increased potential for a landslide.
Astronomers have discovered direct evidence of water
on the dwarf planet Ceres in the form of vapor plumes erupting into space, possibly from
volcano - like
ice geysers
on its surface.
PROVIDENCE, R.I. [Brown University]-- The slopes of a giant Martian
volcano, once covered in glacial
ice, may have been home to one of the most recent habitable environments yet found
on the Red Planet, according to new research led by Brown University geologists.
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Volcano,» «Nazarin» Patti LuPone — «Parker,» «Driving Miss Daisy» Peter Mackenzie — «Trumbo,» «42» Rachel McAdams — «Spotlight,» «Midnight in Paris» Eva Mendes — «The Place beyond the Pines,» «Hitch» Tatsuya Nakadai — «Ran,» «Kagemusha» Adepero Oduye — «The Big Short,» «12 Years a Slave» Marisa Paredes — «The Skin I Live In,» «All about My Mother» Nate Parker — «Beyond the Lights,» «Red Tails» Harold Perrineau — «Zero Dark Thirty,» «28 Weeks Later» Jorge Perugorría — «Che,» «Strawberry and Chocolate» Silvia Pinal — «Vintage Model,» «The Exterminating Angel» Freida Pinto — «Immortals,» «Slumdog Millionaire» Michelle Rodriguez — «Avatar,» «Girlfight» Anika Noni Rose — «For Colored Girls,» «Dreamgirls» Cecilia Roth — «Lucia Lucia,» «All About My Mother» Mark Rylance — «Bridge of Spies,» «The Other Boleyn Girl» Pepe Serna — «The Black Dahlia,» «The Ballad of Gregorio Cortez» Martin Starr — «I'll See You in My Dreams,» «Adventureland» Elizabeth Sung — «Memoirs of a Geisha,» «The Joy Luck Club» Sharmila Tagore — «Dhadkan,» «The World of Apu» Tessa Thompson — «Creed,» «Dear White People» Lorraine Toussaint — «Selma,» «Middle of Nowhere» Glynn Turman — «Super 8,» «Men of Honor» Gabrielle Union — «Top Five,» «Bad Boys II» Jacob Vargas — «The 33,» «Jarhead» Alicia Vikander — «The Danish Girl,» «Ex Machina» Emma Watson — «The Bling Ring,» «The Perks of Being a Wallflower» Damon Wayans, Jr. — «Big Hero 6,» «Let's Be Cops» Marlon Wayans — «The Heat,» «Requiem for a Dream» Rita Wilson — «It's Complicated,» «Runaway Bride» Daphne Zuniga — «Staying Together,» «Spaceballs»
How many locations
on the planet can you crawl into bright blue glacial
ice caves, fly over an erupting
volcano bubbling with lava, AND stay up all night transfixed by magical Northern Lights?
On our new winter journey, experience the extreme contrasts of Iceland's fire and
ice as we trek across snow - covered fields shrouded in geothermal steam, weather sub-zero temperatures from the warmth of outdoor thermal baths, and take in views of a glacier - capped
volcano.
Chile has a wealth of adventure tourism for visitors to uncover from skiing down a
volcano in Pucón, scuba - diving off Easter Island and
ice - field walking in Patagonia, to taking a hot air balloon flight over the Atacama Desert and white water rafting
on the Futaleufu River.
Volcano «dun it» guys do nt know that I have collected Pumice rocks
on the shores of Ellesmere Island in the early 80's when there was lots more
ice, there is a thing called geological activity, which mind you, can be picked up by US or Canadian Geological surveys, But hey, lets not encourage them to do proper research, its fun to read them so over the top.
# 217, A little hint for the
volcano «dun it» gang, find the spot where the surface
ice has melted, either
on a glacier or
on floating
ice, aside from that, laughing is a healthy thing to do, its good stand up comedian stuff..
(The recent work of Huybers and Langmuir suggests that
on ice - age time scales, the loading and unloading of the planet by
ice growth / shrinkage and sea - level fall / rise may weakly organize the
volcanoes, but not a lot, and with nothing interesting for our time.)
Now let's use just a tiny bit of common sense, and consider honestly for just once in the hysterical discussion this topic always seems to devolve into: Which is likely to have more impact
on frozen
ice in the water directly above those
volcanoes?
The paper uses evidence and modeling to explain how the sun - blocking impact from a 50 - year stretch of unusually intense eruptions of four tropical
volcanoes caused sufficient cooling to produce a long - lasting shift in the generation and migration of Arctic Ocean sea
ice, with substantial consequences for the Northern Hemisphere climate that lasted centuries and left a deep imprint
on European history.
[ANDY REVKIN says: Here's a starting point — a recent story by my colleague Ken Chang
on one of the Antarctic under -
ice volcano reports.]
Paleo placing more emphasis
on «
volcanoes dun it» for the little
ice age.
Like the gaseous aerosols from
volcanoes, these tracers settle
on distant
ice and are there to be read by anyone bold enough to retrieve the record.
-- The third, being the observed destabilization of the geosphere due to both the pace of terrestrial
ice loss and relatively sudden and uneven climatic redistribution of the oceans» mass, with a consequent rise in seismic events and in
volcanoes» cooling sulphate emissions, which have (according to Prof. McGuire, adviser to Munich Re
on vulcanism risks) accelerated slowly
on a 1.25 % / yr trend over the last 30 years.
The final
icing on the cake was delivered by the Indonesian
volcano Tambora in 1815, which gave the world the year without a summer in 1816 (40:30).
At some point, could the increased CO2 from undersea eruptions start the warming that melts the
ice covering
volcanoes on land?
We can do a hundred different measurements
on a single little slab of
ice and from that we can tell all sorts of things; Temperature, precipitation, storm patterns, where the storm came from, industrial pollutants, forest fires,
volcanoes,
on and
on and
on.
The normal CO2 sinks shut down in freezing conditions but
volcanoes continue belching it out into the atmosphere regardless of amount of
ice cover
on land & ocean.
I recall one post
on how Earth came out of a snowball, which explanation may be a possibility but then again there may be other explanations (eg., oceanic
volcanos splitting in the
ice and thereby releasing some water vapour, soot deposits changing albedo, even meteor collision — who knows given the lack of evidence).
Seems to me David's mistake is not noticing that the rapid events are internal to the climate system, not external; they may cause fast changes in albedo for example for a while; and they are modeled, see Dr. Bitz's work
on Arctic sea
ice, or any model including
volcanos or Atlantic deep water currents etc..
The coldest places in Hawaii: The
ice - preserving microclimates of high - altitude craters and caves
on tropical island
volcanoes (open access)
A recent study discovered active
volcanoes on the floor of the Arctic Ocean, and some people have wondered if they are causing sea
ice to melt.
Alternatively, meltwater ponds
on the surface of the
ice or warmer refugia near active
volcanoes may have provided sanctuary to early life - forms.