Posts Tagged ‘volcano’
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…)
Earth & Environment - Feb 22, 2010 11:16 - 0 Comments
Upside-down answer for deep Earth mystery
RICE (US)—When Earth was young, it exhaled the atmosphere. Now, a team of scientists is offering a new answer to a longstanding mystery: What caused Earth to hold its last breath? (more…)
Earth & Environment - Jan 13, 2010 13:26 - 0 Comments
On video: Seafloor volcano spews magma
U. WASHINGTON—For the first time molten lava has been observed flowing from a deep ocean volcano. In video footage, clouds of milky-yellow sulfur gas billow, molten red lava explodes into the icy ocean water and turns almost instantaneously to black rock, while water vapor creates huge, glowing lava bubbles several feet across. (more…)
Science & Technology - Jan 11, 2010 13:49 - 0 Comments
Far-out rocky planet is volcanic wasteland
U. WASHINGTON—When scientists confirmed in October that they had detected the first rocky planet outside our solar system, it advanced the longtime quest to find an Earth-like planet. (more…)
Earth & Environment - Nov 3, 2009 16:12 - 2 Comments
Seafloor dynamics at work splitting continent
U. ROCHESTER (US)—In 2005, a gigantic, 35-mile-long rift broke open the desert ground in Ethiopia. At the time, some geologists believed the rift was the beginning of a new ocean as two parts of the African continent pulled apart, but the claim was controversial. (more…)
Society & Culture - Jun 18, 2009 12:45 - 2 Comments
Volcanic ash preserves clues to Mayan staple crop
University of Colorado anthropologist Payson Sheets is directing excavations of an ancient manioc field near San Salvador—the first evidence of intensive cultivation of manioc in the Americas.
