Posts Tagged ‘geophysics’
Details of Earth’s core ‘ironed’ out
CALTECH (US) — Researchers have zeroed in on the behavior of iron—a key component of the Earth’s core—by conducting high-pressure experiments to simulate conditions at the planet’s interior. Continue…
Tuesday, December 27, 2011 11:28 - 0 Comments
Earth & Environment - Dec 15, 2011 15:16 - 2 Comments
Can computers predict the next tsunami?
STANFORD (US) — Scientists have developed computational models of the earthquake and resulting tsunami that devastated Japan in 2010 in order to predict disasters of the same scale. (more…)
Science & Technology - Dec 14, 2011 20:21 - 1 Comment
‘Slam-dunk’ proof of water on Mars
CORNELL (US) — The discovery of a bright vein of gypsum in ancient rock proves that water once flowed underground on Mars, researchers say. (more…)
Earth & Environment - Oct 18, 2011 10:05 - 1 Comment
Earthquakes: Mega-heat, miniscule space
BROWN U. (US) — In an earthquake, rock surfaces sliding past each other create intense stress and heat—but only in super-small places where the surfaces actually touch. (more…)
Earth & Environment - Oct 11, 2011 12:09 - 0 Comments
New view of California’s tectonic plates
BROWN (US) — The highest resolution picture ever obtained of southern California’s lithosphere shows its thickness differs markedly, offering new insight into how rifting shaped the area’s terrain. (more…)
Earth & Environment - Sep 15, 2011 11:15 - 5 Comments
Don’t blame clouds for climate change
TEXAS A&M (US) — Clouds are not the root cause of climate change, but only amplify global warming brought on by human activity, according to a new study. (more…)
Earth & Environment - Aug 15, 2011 11:06 - 0 Comments
Mexico quake’s path veered from norm
CALTECH (US) — The El Mayor-Cucapah earthquake that struck Baja California in April 2010 took a divergent route, causing a fault line that remained straight on the surface but was warped and complicated at depth. (more…)
Earth & Environment - Aug 11, 2011 15:44 - 0 Comments
Reef reveals life 265 million years ago
TEXAS A&M (US) — Rocks from the fossil Permian Reef in the Guadalupe Mountains of West Texas are offering clues about changes in sea level and marine life 265 million years ago. (more…)
Earth & Environment - Jun 24, 2011 11:59 - 0 Comments
Stiff sediment caused killer tsunami
U. TEXAS-AUSTIN (US)/U. SOUTHAMPTON (UK) — A thick plateau of hard, compacted sediment was a major factor in the 2004 undersea earthquake off the coast of Sumatra that spawned the deadliest tsunami in recorded history. (more…)
Earth & Environment - Jun 2, 2011 15:57 - 0 Comments
Map surfaces ice sheet’s underbelly
U. TEXAS-AUSTIN (US) — A high-resolution map uses ice-penetrating radar to reveal some of the largest fjords on Earth at the Aurora Subglacial Basin in East Antarctica. (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…)
Science & Technology - May 25, 2011 16:35 - 3 Comments
Mars grew fast but stayed small
U. CHICAGO (US) — Mars formed quickly—in as little as two to four million years after the birth of the solar system—which helps explain why it is so small, say researchers. (more…)
Earth & Environment - May 24, 2011 15:49 - 0 Comments
Japan’s earthquake was a one-two punch
STANFORD (US) — The magnitude 9.0 earthquake and resulting tsunami that struck Japan in March were generated on a fault that ruptured in a flip-flop motion. (more…)
Earth & Environment - May 20, 2011 11:50 - 1 Comment
New data: How earth moved under Japan
CALTECH (US) — The first large observational study of Japan’s magnitude 9.0 earthquake in March is yielding surprising findings about fault slip and stress accumulation in the Japan Trench. (more…)
Earth & Environment - Apr 28, 2011 11:26 - 2 Comments
Early Earth rich in carbon monoxide
U. CHICAGO (US) — A volcanic crater is offering clues to the composition of Earth’s early atmosphere, when carbon monoxide levels may have been tens of thousands of times higher than current concentrations. (more…)
Earth & Environment - Apr 18, 2011 15:11 - 0 Comments
Wave train driving Antarctic warming
U. WASHINGTON (US) — A large wave structure in the atmosphere has been bringing steadily warmer temperatures to West Antarctica during the winter and spring for at least 30 years. (more…)
Earth & Environment - Dec 19, 2010 18:34 - 0 Comments
3-D images hint to Earth’s big split
STANFORD (US) — A new method of taking very detailed 3-D images of minute samples of material under extreme pressures is helping tell the story of the biggest transformation Earth has ever undergone. (more…)
Earth & Environment - Dec 16, 2010 17:47 - 1 Comment
Stored CO2 may be earthquake trigger
STANFORD (US) — Storing massive amounts of carbon dioxide underground in an effort to combat global warming could potentially cause small to moderate earthquakes. (more…)
Science & Technology - Dec 15, 2010 18:19 - 0 Comments
Saturn moon mountains taller than Everest
JOHNS HOPKINS / WASHINGTON U.-ST. LOUIS (US) — A strange mountain range girding the equator of Saturn’s third-largest moon may have been formed not by geological forces but rather by the explosive breakup of an orbiting mini-moon, scientists suggest. (more…)
