Posts Tagged ‘volcano’
Tree rings fail to capture climate after volcanos
PENN STATE (US) — Some climate cooling caused by past volcanic eruptions may not be evident in tree-ring reconstructions of temperature change, a new study suggests. Continue…
Tuesday, February 7, 2012 13:16 - 0 Comments
Earth & Environment - Feb 6, 2012 15:04 - 0 Comments
New hot spring may predict volcano blasts
U. TEXAS-AUSTIN (US) — Scientists have discovered a new type of hot spring, a “terrestrial smoker,” along the banks of a volcanic lake in the Philippines. (more…)
Earth & Environment - Jan 31, 2012 10:47 - 2 Comments
Volcanoes likely sparked Little Ice Age
U. COLORADO-BOULDER (US) — Four massive tropical volcanic eruptions that occurred over a span of 50 years may have triggered Earth’s enigmatic Little Ice Age. (more…)
Earth & Environment - Oct 28, 2011 9:45 - 0 Comments
Rare lava collected from under sea volcano
U. WASHINGTON-SEATTLE (US) — The first scientists to witness exploding rock and molten lava from a deep sea volcano in 2009 report that the eruption was near a tear in the Earth’s crust that is mimicking the birth of a subduction zone. (more…)
Society & Culture - Oct 10, 2011 8:26 - 3 Comments
Ancient Maya road ‘frozen’ by volcano
U. COLORADO-BOULDER (US) — A team excavating a Maya village in El Salvador buried by a volcanic eruption 1,400 years ago has unexpectedly hit an ancient white road that appears to lead to and from the town frozen in time by a blanket of ash. (more…)
Science & Technology - Oct 3, 2011 9:54 - 0 Comments
Mercury flooded by volcanic gush
BROWN (US) — Vast plains around Mercury’s north pole were created more than 3.5 billion years ago by lava flows that covered 6 percent of the planet’s surface—an area that would cover nearly 60 percent of the continental U.S. (more…)
Earth & Environment - Jun 1, 2011 16:30 - 0 Comments
Volcanic eruption re-created in 3-D
PENN STATE (US) — A 3-D model of the Mount St. Helens volcanic eruption more than 30 years ago is expected to help seismologists map potential flows at blast-dangerous volcanoes worldwide. (more…)
Earth & Environment - Mar 29, 2011 12:02 - 0 Comments
Deep-sea volcanoes air volatile side
MCGILL (CAN) — Deep-sea volcanoes do more than gush magma flow—in some cases high concentrations of CO2 cause massive underwater explosions. (more…)
Earth & Environment - Feb 18, 2011 13:15 - 1 Comment
Big volcanoes doubled CO2 level
RUTGERS (US) — Core samples taken from New Jersey show a dramatic increase in the level of atmospheric carbon dioxide 200 million years ago. The cause: 20,000 years of massive volcanic eruptions. (more…)
Earth & Environment - Nov 18, 2010 14:11 - 0 Comments
Why volcanos do what they do
PENN STATE (US) — Ongoing observations of the Soufriere Hills Volcano on Montserrat since it erupted in 1995 are expected to advance understanding of the workings of andesite volcanos. (more…)
Earth & Environment - Oct 20, 2010 15:26 - 0 Comments
Oceans hold treasure trove of minerals
CORNELL (US) —While land-based deposits may be a dwindling source of valuable minerals, deposits on the ocean floor could power humanity for centuries. (more…)
Science & Technology - Jun 21, 2010 11:44 - 0 Comments
Geoneutrinos detected deep inside Earth
PRINCETON (US)—The discovery of subatomic particles deep within the Earth’s interior could help geologists understand how reactions taking place in the planet’s interior affect events on the surface such as earthquakes and volcanoes. (more…)
Earth & Environment - Jun 3, 2010 11:12 - 0 Comments
Mantle flow can move mountains
USC (US)—If tectonic plate collisions cause volcanic eruptions, why do some volcanoes erupt far from a plate boundary? (more…)
Earth & Environment - Apr 28, 2010 12:00 - 1 Comment
Extinction by acidic ocean: past or present?
STANFORD (US)—New evidence uncovered by analyzing calcium embedded in Chinese limestone suggests that volcanoes, which spewed massive amounts of carbon dioxide into the atmosphere for a million years, caused the biggest mass extinction on Earth. (more…)
Earth & Environment - Apr 21, 2010 14:27 - 9 Comments
Will volcano’s ‘big sister’ erupt next?
TEXAS A&M (US)—While the eruption from the Eyjafjallajokull volcano in Iceland ground much of international travel to a halt, if a nearby volcano named Mount Katla should erupt, it has the potential to be many times more devastating. (more…)
Earth & Environment - Apr 16, 2010 15:52 - 3 Comments
Why volcanic ash ends up in the jet stream
BUFFALO (US)—The jet stream, an area in the atmosphere favored by airline pilots, also seems to be the area most likely to be affected by plumes from volcanic ash. (more…)
Earth & Environment - Apr 15, 2010 21:49 - 2 Comments
Volcanic plume likely to dissipate in days
U. COLORADO (US)—The eruption of an Icelandic volcano that sent a huge plume of ash into the atmosphere and caused sweeping disruptions of air traffic over Great Britain and Scandinavia on April 15 will likely dissipate in the next several days, according to atmospheric scientist Brian Toon. (more…)
Science & Technology - Mar 25, 2010 12:35 - 1 Comment
Climate mayhem let dinosaurs dominate
BROWN (US)—Widespread volcanic eruptions and a spike in atmospheric carbon dioxide wiped out dinosaurs’ biggest competitors, according to a new climate analysis, allowing dinosaurs to rule the Earth more than 200 million years ago. (more…)
Earth & Environment - Mar 11, 2010 11:11 - 0 Comments
How early humans adapted to climate change
U. BUFFALO (US)—Siberia’s remote Kamchatka peninsula, a rough and extremely volcanic wilderness region the size of California, is the current site of an international effort to understand how humans living 4,000 to 6,000 years ago reacted to climate changes. (more…)
