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Cold and ice, not heat, episodically gripped tropical regions 300 million years ago 
Geoscientists have long presumed that, like today, the tropics remained warm throughout Earth's last major glaciation 300 million years ago.
Geoscientists have long presumed that, like today, the tropics remained warm throughout Earth's last major glaciation 300 million years ago.
Geology
Source: National Science Foundation
Posted on: Friday, Aug 01, 2008, 1:12pm
Rating: | Views: 1245 | Comments: 0
Source: National Science Foundation
Posted on: Friday, Aug 01, 2008, 1:12pm
Rating: | Views: 1245 | Comments: 0
Earthquake strongly jolts "lucky" L.A.
An earthquake struck just east of Los Angeles on Tuesday, rocking tall buildings and rattling nerves across Southern California, but causing no serious injuries or major structural damage.
An earthquake struck just east of Los Angeles on Tuesday, rocking tall buildings and rattling nerves across Southern California, but causing no serious injuries or major structural damage.
Geology
Source: Reuters
Posted on: Wednesday, Jul 30, 2008, 8:51am
Rating: | Views: 1262 | Comments: 0
Source: Reuters
Posted on: Wednesday, Jul 30, 2008, 8:51am
Rating: | Views: 1262 | Comments: 0
Isthmus of Panama formed as result of plate tectonics
Contrary to previous evidence, a new University of Florida study shows the Isthmus of Panama was most likely formed by a Central American Peninsula colliding slowly with the South American continent through tectonic plate movement over millions of years.
Contrary to previous evidence, a new University of Florida study shows the Isthmus of Panama was most likely formed by a Central American Peninsula colliding slowly with the South American continent through tectonic plate movement over millions of years.
Geology
Source: University of Florida
Posted on: Wednesday, Jul 30, 2008, 8:51am
Rating: | Views: 2246 | Comments: 0
Source: University of Florida
Posted on: Wednesday, Jul 30, 2008, 8:51am
Rating: | Views: 2246 | Comments: 0
Mud pots signal possible extension of San Andreas Fault
A linear string of mud pots and mud volcanoes suggest surface evidence for a southern extension of the San Andreas Fault that runs through the Salton Sea, according to a paper published in the August issue of the Bulletin of the Seismological Society of America (BSSA).
A linear string of mud pots and mud volcanoes suggest surface evidence for a southern extension of the San Andreas Fault that runs through the Salton Sea, according to a paper published in the August issue of the Bulletin of the Seismological Society of America (BSSA).
Geology
Source: Seismological Society of America
Posted on: Tuesday, Jul 29, 2008, 12:47pm
Rating: | Views: 1223 | Comments: 0
Source: Seismological Society of America
Posted on: Tuesday, Jul 29, 2008, 12:47pm
Rating: | Views: 1223 | Comments: 0
Snapshot of past climate reveals no ice in Antarctica millions of years ago
A snapshot of New Zealand's climate 40 million years ago reveals a greenhouse Earth, with warmer seas and little or no ice in Antarctica, according to research published this week in the journal Geology.
A snapshot of New Zealand's climate 40 million years ago reveals a greenhouse Earth, with warmer seas and little or no ice in Antarctica, according to research published this week in the journal Geology.
Geology
Source: Cardiff University
Posted on: Monday, Jul 28, 2008, 9:37am
Rating: | Views: 1231 | Comments: 0
Source: Cardiff University
Posted on: Monday, Jul 28, 2008, 9:37am
Rating: | Views: 1231 | Comments: 0
Did eroding supermountains give us the air we breathe?
Key stages in the oxygenation of our atmosphere coincide with the formation and erosion of supercontinents, say researchers
Key stages in the oxygenation of our atmosphere coincide with the formation and erosion of supercontinents, say researchers
Geology
Source: New Scientist
Posted on: Monday, Jul 28, 2008, 9:35am
Rating: | Views: 1386 | Comments: 0
Source: New Scientist
Posted on: Monday, Jul 28, 2008, 9:35am
Rating: | Views: 1386 | Comments: 0
Scientists break record by finding northernmost hydrothermal vent field
Well inside the Arctic Circle, scientists have found black smoker vents farther north than anyone has ever seen before. The cluster of five vents – one towering nearly four stories in height – are venting water as hot as 570 F.
Well inside the Arctic Circle, scientists have found black smoker vents farther north than anyone has ever seen before. The cluster of five vents – one towering nearly four stories in height – are venting water as hot as 570 F.
Geology
Source: University of Washington
Posted on: Thursday, Jul 24, 2008, 1:08pm
Rating: | Views: 1244 | Comments: 0
Source: University of Washington
Posted on: Thursday, Jul 24, 2008, 1:08pm
Rating: | Views: 1244 | Comments: 0
Chinese earthquake provides lessons for future
The May 12 Sichuan earthquake in China was unexpectedly large. Analysis of the area, however, now shows that topographic characteristics of the highly mountainous area identified the mountain range as active and could have pointed to the earthquake hazard.
The May 12 Sichuan earthquake in China was unexpectedly large. Analysis of the area, however, now shows that topographic characteristics of the highly mountainous area identified the mountain range as active and could have pointed to the earthquake hazard.
Geology
Source: Penn State
Posted on: Monday, Jul 21, 2008, 11:36am
Rating: | Views: 1240 | Comments: 0
Source: Penn State
Posted on: Monday, Jul 21, 2008, 11:36am
Rating: | Views: 1240 | Comments: 0
A single boulder may prove that Antarctica and North America were once connected
The team's find, they argue, provides physical evidence that confirms the so-called southwestern United States and East Antarctica (SWEAT) hypothesis.
The team's find, they argue, provides physical evidence that confirms the so-called southwestern United States and East Antarctica (SWEAT) hypothesis.
Geology
Source: National Science Foundation
Posted on: Thursday, Jul 17, 2008, 11:13am
Rating: | Views: 1228 | Comments: 0
Source: National Science Foundation
Posted on: Thursday, Jul 17, 2008, 11:13am
Rating: | Views: 1228 | Comments: 0
Eruptions wiped out ocean life 94 million years ago
University of Alberta scientists contend they have the answer to mass extinction of animals and plants 93 million years ago. The answer, research has uncovered, has been found at the bottom of the sea floor where lava fountains erupted, altering the chemistry of the sea and possibly of the atmosphere.
University of Alberta scientists contend they have the answer to mass extinction of animals and plants 93 million years ago. The answer, research has uncovered, has been found at the bottom of the sea floor where lava fountains erupted, altering the chemistry of the sea and possibly of the atmosphere.
Geology
Source: University of Alberta
Posted on: Thursday, Jul 17, 2008, 9:52am
Rating: | Views: 1277 | Comments: 0
Source: University of Alberta
Posted on: Thursday, Jul 17, 2008, 9:52am
Rating: | Views: 1277 | Comments: 0
Icelandic volcanoes help researchers understand potential effects of eruptions
For the first time, researchers have taken a detailed look at what lies beneath all of Iceland's volcanoes – and found a world far more complex than they ever imagined.
For the first time, researchers have taken a detailed look at what lies beneath all of Iceland's volcanoes – and found a world far more complex than they ever imagined.
Geology
Source: Ohio State University
Posted on: Monday, Jul 14, 2008, 10:51am
Rating: | Views: 1188 | Comments: 0
Source: Ohio State University
Posted on: Monday, Jul 14, 2008, 10:51am
Rating: | Views: 1188 | Comments: 0
Alaska volcano erupts; island residents evacuated
A volcano in Alaska's Aleutian chain erupted on Saturday, sending a cloud of ash 35,000 feet into the air and prompting the evacuation of the 10 people who live on the eastern side of the island, officials said.
A volcano in Alaska's Aleutian chain erupted on Saturday, sending a cloud of ash 35,000 feet into the air and prompting the evacuation of the 10 people who live on the eastern side of the island, officials said.
Geologists Discover Magma and Carbon Dioxide Combine to Make ‘Soda-Pop’ Eruption
Through an autopsy of an ancient Scandinavian mountain chain, a team of Texas Tech University geologists found that carbon dioxide can create explosive eruptions when magma encounters calcium carbonate-based rocks.
Through an autopsy of an ancient Scandinavian mountain chain, a team of Texas Tech University geologists found that carbon dioxide can create explosive eruptions when magma encounters calcium carbonate-based rocks.
Geology
Source: Newswise
Posted on: Wednesday, Jul 09, 2008, 1:00pm
Rating: | Views: 1218 | Comments: 0
Source: Newswise
Posted on: Wednesday, Jul 09, 2008, 1:00pm
Rating: | Views: 1218 | Comments: 0
A stress meter for fault zones
The speed of seismic waves is a measure of stress in rocks during -- and possibly before -- earthquakes
The speed of seismic waves is a measure of stress in rocks during -- and possibly before -- earthquakes
Geology
Source: DOE/Lawrence Berkeley National Laboratory
Posted on: Wednesday, Jul 09, 2008, 12:43pm
Rating: | Views: 1198 | Comments: 0
Source: DOE/Lawrence Berkeley National Laboratory
Posted on: Wednesday, Jul 09, 2008, 12:43pm
Rating: | Views: 1198 | Comments: 0
Surprisingly rapid changes in the Earth's core discovered
In a recent paper published in Nature Geoscience researchers have shown that motions in the fluid in the Earth’s core are changing surprisingly fast, and that this, in turn, effects the magnetic field of our Planet.
In a recent paper published in Nature Geoscience researchers have shown that motions in the fluid in the Earth’s core are changing surprisingly fast, and that this, in turn, effects the magnetic field of our Planet.
Geology
Source: Helmholtz Association of German Research Centres
Posted on: Monday, Jul 07, 2008, 10:00am
Rating: | Views: 1194 | Comments: 0
Source: Helmholtz Association of German Research Centres
Posted on: Monday, Jul 07, 2008, 10:00am
Rating: | Views: 1194 | Comments: 0
Geologists study China earthquake for glimpse into future
The May 12 earthquake that rocked Sichuan Province in China was the first there in recorded history and unexpected in its magnitude. Now a team of geoscientists is looking at the potential for future earthquakes due to earthquake-induced changes in stress.
The May 12 earthquake that rocked Sichuan Province in China was the first there in recorded history and unexpected in its magnitude. Now a team of geoscientists is looking at the potential for future earthquakes due to earthquake-induced changes in stress.
Geology
Source: Penn State
Posted on: Monday, Jul 07, 2008, 9:32am
Rating: | Views: 1182 | Comments: 0
Source: Penn State
Posted on: Monday, Jul 07, 2008, 9:32am
Rating: | Views: 1182 | Comments: 0
Geologists push back date basins formed, supporting frozen Earth theory
Even in geology, it's not often a date gets revised by 500 million years.
Even in geology, it's not often a date gets revised by 500 million years.
Geology
Source: University of Florida
Posted on: Thursday, Jul 03, 2008, 4:11pm
Rating: | Views: 1240 | Comments: 0
Source: University of Florida
Posted on: Thursday, Jul 03, 2008, 4:11pm
Rating: | Views: 1240 | Comments: 0
Slideshow: 8 dangerous volcanoes around the world
The eruption of the Chaiten volcano in southern Chile in May claimed at least one life and serves as a stark reminder that slumbering volcanoes pose grave dangers.
The eruption of the Chaiten volcano in southern Chile in May claimed at least one life and serves as a stark reminder that slumbering volcanoes pose grave dangers.
Exploding asteroid theory strengthened by new evidence
Geological evidence found in Ohio and Indiana in recent weeks is strengthening the case to attribute what happened 12,900 years ago in North America -- when the end of the last Ice Age unexpectedly turned into a phase of extinction for animals and humans -- to a cataclysmic comet or asteroid explosion over top of Canada.
Geological evidence found in Ohio and Indiana in recent weeks is strengthening the case to attribute what happened 12,900 years ago in North America -- when the end of the last Ice Age unexpectedly turned into a phase of extinction for animals and humans -- to a cataclysmic comet or asteroid explosion over top of Canada.
Geology
Source: University of Cincinnati
Posted on: Wednesday, Jul 02, 2008, 3:43pm
Rating: | Views: 1238 | Comments: 0
Source: University of Cincinnati
Posted on: Wednesday, Jul 02, 2008, 3:43pm
Rating: | Views: 1238 | Comments: 0
China quake rare and unexpected
A new analysis of the setting for last month's devastating earthquake in China by a team of geoscientists at MIT shows that the quake resulted from faults with little seismic activity, and that similar events in that area occur only once in every 2,000 to 10,000 years, on average.
A new analysis of the setting for last month's devastating earthquake in China by a team of geoscientists at MIT shows that the quake resulted from faults with little seismic activity, and that similar events in that area occur only once in every 2,000 to 10,000 years, on average.
Geology
Source: Massachusetts Institute of Technology
Posted on: Monday, Jun 30, 2008, 1:54pm
Rating: | Views: 1169 | Comments: 0
Source: Massachusetts Institute of Technology
Posted on: Monday, Jun 30, 2008, 1:54pm
Rating: | Views: 1169 | Comments: 0
Invisible waves shape continental slope
A class of powerful, invisible waves hidden beneath the surface of the ocean can shape the underwater edges of continents and contribute to ocean mixing and climate, researchers from The University of Texas at Austin have found.
A class of powerful, invisible waves hidden beneath the surface of the ocean can shape the underwater edges of continents and contribute to ocean mixing and climate, researchers from The University of Texas at Austin have found.
Geology
Source: University of Texas at Austin
Posted on: Monday, Jun 30, 2008, 11:28am
Rating: | Views: 1206 | Comments: 0
Source: University of Texas at Austin
Posted on: Monday, Jun 30, 2008, 11:28am
Rating: | Views: 1206 | Comments: 0
Geologists discover signs of volcanoes blowing their tops in the deep ocean
A research team led by the Woods Hole Oceanographic Institution (WHOI) has uncovered evidence of explosive volcanic eruptions deep beneath the ice-covered surface of the Arctic Ocean.
A research team led by the Woods Hole Oceanographic Institution (WHOI) has uncovered evidence of explosive volcanic eruptions deep beneath the ice-covered surface of the Arctic Ocean.
Geology
Source: Woods Hole Oceanographic Institution
Posted on: Thursday, Jun 26, 2008, 9:05am
Rating: | Views: 1870 | Comments: 0
Source: Woods Hole Oceanographic Institution
Posted on: Thursday, Jun 26, 2008, 9:05am
Rating: | Views: 1870 | Comments: 0
Volcano ‘pollution’ solves mercury mystery
Scientists from the Universities of Oxford and Cambridge have discovered how volatile metals from volcanoes end up in polar ice cores.
Scientists from the Universities of Oxford and Cambridge have discovered how volatile metals from volcanoes end up in polar ice cores.
Geology
Source: University of Oxford
Posted on: Wednesday, Jun 25, 2008, 10:02am
Rating: | Views: 1247 | Comments: 0
Source: University of Oxford
Posted on: Wednesday, Jun 25, 2008, 10:02am
Rating: | Views: 1247 | Comments: 0
Active submarine volcanoes found near Fiji
Several huge active submarine volcanoes, spreading ridges and rift zones have been discovered northeast of Fiji by a team of Australian and American scientists aboard the Marine National Facility Research Vessel, Southern Surveyor.
Several huge active submarine volcanoes, spreading ridges and rift zones have been discovered northeast of Fiji by a team of Australian and American scientists aboard the Marine National Facility Research Vessel, Southern Surveyor.
Geology
Source: CSIRO Australia
Posted on: Thursday, Jun 19, 2008, 8:52am
Rating: | Views: 1243 | Comments: 0
Source: CSIRO Australia
Posted on: Thursday, Jun 19, 2008, 8:52am
Rating: | Views: 1243 | Comments: 0
Toxic to aliens -- but key to health of planet
Scientists at the University of Leicester are using an ingredient found in common shampoos to investigate how the oxygen content of the oceans has changed over geologically recent time.
Scientists at the University of Leicester are using an ingredient found in common shampoos to investigate how the oxygen content of the oceans has changed over geologically recent time.
Geology
Source: University of Leicester
Posted on: Wednesday, Jun 18, 2008, 9:38am
Rating: | Views: 1202 | Comments: 0
Source: University of Leicester
Posted on: Wednesday, Jun 18, 2008, 9:38am
Rating: | Views: 1202 | Comments: 0
Japan's monitoring system beaten by shallow quake
Earthquake takes nine lives as destruction arrives ahead of warning.
Earthquake takes nine lives as destruction arrives ahead of warning.
Mini subs to probe odd structures in BC lake
Single person submersibles have been called in to help scientists retrieve samples from a lake in northern British Columbia that may hold vital clues to the history of life on Earth and on other planets.
Single person submersibles have been called in to help scientists retrieve samples from a lake in northern British Columbia that may hold vital clues to the history of life on Earth and on other planets.
Geology
Source: McMaster University
Posted on: Monday, Jun 16, 2008, 11:11am
Rating: | Views: 1216 | Comments: 0
Source: McMaster University
Posted on: Monday, Jun 16, 2008, 11:11am
Rating: | Views: 1216 | Comments: 0
Ebb and flow of the sea drives world's big extinction events
If you are curious about Earth's periodic mass extinction events such as the sudden demise of the dinosaurs 65 million years ago, you might consider crashing asteroids and sky-darkening super volcanoes as culprits.
If you are curious about Earth's periodic mass extinction events such as the sudden demise of the dinosaurs 65 million years ago, you might consider crashing asteroids and sky-darkening super volcanoes as culprits.
Geology
Source: University of Wisconsin-Madison
Posted on: Monday, Jun 16, 2008, 8:49am
Rating: | Views: 1167 | Comments: 0
Source: University of Wisconsin-Madison
Posted on: Monday, Jun 16, 2008, 8:49am
Rating: | Views: 1167 | Comments: 0
Ancient mineral shows early Earth climate tough on continents
A new analysis of ancient minerals called zircons suggests that a harsh climate may have scoured and possibly even destroyed the surface of the Earth's earliest continents.
A new analysis of ancient minerals called zircons suggests that a harsh climate may have scoured and possibly even destroyed the surface of the Earth's earliest continents.
Geology
Source: University of Wisconsin-Madison
Posted on: Friday, Jun 13, 2008, 8:09pm
Rating: | Views: 1265 | Comments: 0
Source: University of Wisconsin-Madison
Posted on: Friday, Jun 13, 2008, 8:09pm
Rating: | Views: 1265 | Comments: 0
Fossils found in Tibet revise history of elevation, climate
About 15,000 feet up on Tibet's desolate Himalayan-Tibetan Plateau, an international research team led by Florida State University geologist Yang Wang was surprised to find thick layers of ancient lake sediment filled with plant, fish and animal fossils typical of far lower elevations and warmer, wetter climates.
About 15,000 feet up on Tibet's desolate Himalayan-Tibetan Plateau, an international research team led by Florida State University geologist Yang Wang was surprised to find thick layers of ancient lake sediment filled with plant, fish and animal fossils typical of far lower elevations and warmer, wetter climates.
Geology
Source: Florida State University
Posted on: Wednesday, Jun 11, 2008, 1:09pm
Rating: | Views: 1246 | Comments: 0
Source: Florida State University
Posted on: Wednesday, Jun 11, 2008, 1:09pm
Rating: | Views: 1246 | Comments: 0
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