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Diamonds reveal deep source of platinum deposits
The world's richest source of platinum and related metals is an enigmatic geological structure in South Africa known as the Bushveld Complex. This complex of ancient magmas is known to have formed some two billion years ago, but the source of its metallic riches has been a matter of scientific dispute.
Geology
Source: Carnegie Institution
Posted on: Wednesday, Jun 11, 2008, 12:46pm
Rating: | Views: 2494 | Comments: 0
Report confirms drilling, not earthquake, caused Java mud volcano
A two-year old mud volcano which is still spewing huge volumes of mud, has displaced more than 30,000 people and caused millions of dollars worth of damage was caused by the drilling of a gas exploration well, an international team of scientists has concluded.
Geology
Source: Durham University
Posted on: Monday, Jun 09, 2008, 9:02am
Rating: | Views: 1222 | Comments: 0
Mountain ranges rise much more rapidly than geologists expected
Mountains may experience a "growth spurt" that can double their heights in as little as two to four million years—several times faster than the prevailing tectonic theory suggests.
Geology
Source: University of Rochester Medical Center
Posted on: Thursday, Jun 05, 2008, 3:34pm
Rating: | Views: 1213 | Comments: 0
Volcano taming
Could macro-scale chemical engineering be used to stop a volcanic lava flow in its tracks and save potentially thousands of lives and homes when the next eruption occurs?
Geology
Source: Inderscience Publishers
Posted on: Thursday, Jun 05, 2008, 9:54am
Rating: | Views: 1228 | Comments: 0
Data show Antarctic ice stream radiating seismically
A seismologist at Washington University in St. Louis and colleagues at Pennsylvania State University and Newcastle University in the United Kingdom have found seismic signals from a giant river of ice in Antarctica that makes California's earthquake problem seem trivial.
Geology
Source: Washington University in St. Louis
Posted on: Wednesday, Jun 04, 2008, 12:38pm
Rating: | Views: 1207 | Comments: 0
Volcano Erupts On Galapagos Islands
A volcano on the largest of the Galapagos Islands has begun erupting and authorities are evaluating possible dangers to the island's famed plant and animal life, officials said.
Geology
Source: CBS News
Posted on: Monday, Jun 02, 2008, 10:02am
Rating: | Views: 1319 | Comments: 0
Researchers uncover 'stirring' secrets of deadly supervolcanoes
Researchers from The University of British Columbia and McGill University have simulated in the lab the process that can turn ordinary volcanic eruptions into so-called “supervolcanoes.”
Geology
Source: EurekAlert
Posted on: Thursday, May 29, 2008, 12:15pm
Rating: | Views: 1266 | Comments: 0
Large methane release could cause abrupt climate change
An abrupt release of methane, a powerful greenhouse gas, about 635 million years ago from ice sheets that then extended to Earth’s low latitudes caused a dramatic shift in climate, triggering a series of events that resulted in global warming and effectively ended the last “snowball” ice age, a UC Riverside-led study reports.
Geology
Source: EurekAlert
Posted on: Wednesday, May 28, 2008, 12:34pm
Rating: | Views: 1183 | Comments: 0
World's fastest-growing mud volcano is collapsing
The world’s fastest-growing mud volcano is collapsing and could subside to depths of more than 140 metres with consequences for the surrounding environment, according to new research.
Geology
Source: EurekAlert
Posted on: Wednesday, May 28, 2008, 11:28am
Rating: | Views: 1226 | Comments: 0
Big quakes spark jolts worldwide
Until 1992, when California’s magnitude-7.3 Landers earthquake set off small jolts as far away as Yellowstone National Park, scientists did not believe large earthquakes sparked smaller tremors at distant locations. Now, a definitive study shows large earthquakes routinely trigger smaller jolts worldwide, including on the opposite side of the planet and in areas not prone to quakes.
Geology
Source: EurekAlert
Posted on: Tuesday, May 27, 2008, 8:29am
Rating: | Views: 1260 | Comments: 0
Magma has a cracking time
Flowing lava can fracture and break, causing tiny earthquakes.
Geology
Source: Nature
Posted on: Thursday, May 22, 2008, 9:49am
Rating: | Views: 1463 | Comments: 0
Geosciences Professor Measuring Aftershocks of China Earthquake
A professor of geosciences arrives in China 40 minutes before killer quake, watching Three Gorges Dam.
Geology
Source: Newswise
Posted on: Friday, May 16, 2008, 6:23pm
Rating: | Views: 2061 | Comments: 0
Scientists identified earthquake faults in Sichuan, China
Only last summer research published by earth scientists in the international journal Tectonics concluded that geological faults in the Sichuan Basin, China “are sufficiently long to sustain a strong ground-shaking earthquake, making them potentially serious sources of regional seismic hazard."
Geology
Source: EurekAlert
Posted on: Friday, May 16, 2008, 11:31am
Rating: | Views: 1430 | Comments: 0
Are there nuclear reactors at Earth's core?
Fission reactors may have been burning for billions of years.
Geology
Source: Nature
Posted on: Friday, May 16, 2008, 9:43am
Rating: | Views: 1279 | Comments: 0
Japan's earthquake warning system fails again
A magnitude-6.7 earthquake that struck on 8 May less than 200 kilometres northeast of Tokyo caused only minor damage, but it took a heavy toll on the public’s confidence in Japan’s earthquake warning system.
Geology
Source: Nature
Posted on: Thursday, May 15, 2008, 8:48am
Rating: | Views: 1342 | Comments: 0
Chinese Quake Likely a Mega-Catastrophe
Researchers fear that the magnitude-7.9 earthquake that struck near the major city of Chengdu today will easily be China's biggest killer since 1976's Tangshan quake, conservatively estimated to have taken 250,000 lives.
Geology
Source: Science
Posted on: Tuesday, May 13, 2008, 10:08am
Rating: | Views: 1800 | Comments: 0
Hot climate could shut down plate tectonics
A new study of possible links between climate and geophysics on Earth and similar planets finds that prolonged heating of the atmosphere can shut down plate tectonics and cause a planet's crust to become locked in place.
Geology
Source: EurekAlert
Posted on: Monday, May 12, 2008, 1:11pm
Rating: | Views: 1235 | Comments: 0
A broad view of quake 'prediction'
Wide mapping of stress helps to pinpoint when and where the Earth will crack.
Geology
Source: Nature
Posted on: Monday, May 12, 2008, 8:32am
Rating: | Views: 1240 | Comments: 0
A Slow Birth for the Sahara
An analysis of fine sediments at the bottom of an African lake has challenged the idea that the once-tropical-savanna-covered Sahara rapidly dried into what is now the largest desert on Earth. A report in tomorrow's issue of Science argues that the shift was gradual, taking place over 3000 years.
Geology
Source: Science
Posted on: Friday, May 09, 2008, 9:04am
Rating: | Views: 1868 | Comments: 0
A Little Bit of Shakin' Going On....
Even "micro" quakes around U.S. set nerves on edge.
Geology
Source: ABC News
Posted on: Thursday, May 08, 2008, 11:26am
Rating: | Views: 1682 | Comments: 0
Chile's Chaiten volcano one of scores of active volcanoes in region
The Chaiten volcano now erupting in southern Chile is one of 200 to 300 volcanoes in the "Andean Arc" region of Chile, Peru, Ecuador and Columbia considered active by volcanologists, some of which lie in much more densely populated areas, said a University of Colorado at Boulder geologist who has studied Chaiten.
Geology
Source: EurekAlert
Posted on: Wednesday, May 07, 2008, 9:14am
Rating: | Views: 1190 | Comments: 0
65-million-year-old asteroid impact triggered a global hail of carbon beads
The asteroid presumed to have wiped out the dinosaurs struck the Earth with such force that carbon deep in the Earth's crust liquefied, rocketed skyward, and formed tiny airborne beads that blanketed the planet, say scientists from the U.S., U.K., Italy, and New Zealand in this month's Geology.
Geology
Source: EurekAlert
Posted on: Monday, May 05, 2008, 11:17am
Rating: | Views: 1404 | Comments: 0
'Dynamic duo' develops framework for Earth's inaccessible interior
A new model of inner Earth constructed by Arizona State University researchers pulls past information and hypotheses into a coherent story to clarify mantle motion.
Geology
Source: EurekAlert
Posted on: Thursday, May 01, 2008, 2:35pm
Rating: | Views: 1222 | Comments: 0
Geochemist challenges key theory regarding Earth's formation
Working with colleagues from NASA, a Florida State University researcher has published a paper that calls into question three decades of conventional wisdom regarding some of the physical processes that helped shape the Earth as we know it today.
Geology
Source: EurekAlert
Posted on: Thursday, May 01, 2008, 10:55am
Rating: | Views: 1195 | Comments: 0
Southern flavor in the Arctic
Scientists probing volcanic rocks from deep under the frozen surface of the Arctic Ocean have discovered a special geochemical signature until now found only in the southern hemisphere.
Geology
Source: EurekAlert
Posted on: Wednesday, Apr 30, 2008, 1:10pm
Rating: | Views: 1657 | Comments: 0
Before fossil fuels, Earth's minerals kept CO2 in check
Over millions of years carbon dioxide levels in the atmosphere have been moderated by a finely-tuned natural feedback system— a system that human emissions have recently overwhelmed.
Geology
Source: EurekAlert
Posted on: Tuesday, Apr 29, 2008, 8:45am
Rating: | Views: 1315 | Comments: 0
'New' ancient Antarctic sediment reveals climate change history
Recent additions to the premier collection of Southern Ocean sediment cores at Florida State University’s Antarctic Marine Geology Research Facility will give international scientists a close-up look at fluctuations that occurred in Antarctica’s ice sheet and marine and terrestrial life as the climate cooled considerably between 20 and 14 million years ago.
Geology
Source: EurekAlert
Posted on: Monday, Apr 28, 2008, 5:53pm
Rating: | Views: 1198 | Comments: 0
Earthquake in Illinois was from a new kid on the block
To the surprise of many, the earthquake on April 18, 2008, about 120 miles east of St. Louis, originated in the Wabash Valley Fault, not the better-known and more-dreaded New Madrid Fault in Missouri’s bootheel.
Geology
Source: EurekAlert
Posted on: Thursday, Apr 24, 2008, 5:49pm
Rating: | Views: 2187 | Comments: 0
On shaky ground: UH Prof finds geological faults threaten Houston
After finding more than 300 surface faults in Harris County, a University of Houston geologist now has information that could be vitally useful to the region’s builders and city planners.
Geology
Source: EurekAlert
Posted on: Thursday, Apr 24, 2008, 3:16pm
Rating: | Views: 1421 | Comments: 0
Refining the date of the K/T boundary and the dinosaur extinction
Scientists at the University of California, Berkeley, and the Berkeley Geochronology Center have pinpointed the date of the dinosaurs' extinction more precisely than ever thanks to refinements to a common technique for dating rocks and fossils.
Geology
Source: EurekAlert
Posted on: Thursday, Apr 24, 2008, 1:44pm
Rating: | Views: 1310 | Comments: 0
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