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Antarctic's Ice Shelves Melting From the Bottom Up
Ice shelves lose more mass through melting where the ice meets the sea than by shedding icebergs, a new study says.
Ice shelves lose more mass through melting where the ice meets the sea than by shedding icebergs, a new study says.
Geology
Source: National Geographic News
Posted on: Friday, Jun 14, 2013, 9:25am
Rating: | Views: 1121 | Comments: 0
Source: National Geographic News
Posted on: Friday, Jun 14, 2013, 9:25am
Rating: | Views: 1121 | Comments: 0
Ancient Mars had component key to life, meteorite reveals
Martian clay may have harbored a key component for one of life's molecular building blocks, researchers say
Martian clay may have harbored a key component for one of life's molecular building blocks, researchers say
Geology
Source: CBSNews
Posted on: Thursday, Jun 13, 2013, 10:56am
Rating: | Views: 1412 | Comments: 0
Source: CBSNews
Posted on: Thursday, Jun 13, 2013, 10:56am
Rating: | Views: 1412 | Comments: 0
Supercontinent: how the world is moving together
Our planet used to be made up of one huge land mass. And it will be again (in a few million years), with Australia heading for Asia and North Africa on a collision course with Europe
Our planet used to be made up of one huge land mass. And it will be again (in a few million years), with Australia heading for Asia and North Africa on a collision course with Europe
Geology
Source: TheGuardian
Posted on: Monday, Jun 10, 2013, 8:04am
Rating: | Views: 1194 | Comments: 0
Source: TheGuardian
Posted on: Monday, Jun 10, 2013, 8:04am
Rating: | Views: 1194 | Comments: 0
Antarctic's Mountains Revealed By Sharpest Map Yet
Buried under miles of ice, Antarctica's mysterious mountain ranges are coming into sharper focus thanks to a new map.
Buried under miles of ice, Antarctica's mysterious mountain ranges are coming into sharper focus thanks to a new map.
Geology
Source: National Geographic News
Posted on: Thursday, Jun 06, 2013, 8:52am
Rating: | Views: 1100 | Comments: 0
Source: National Geographic News
Posted on: Thursday, Jun 06, 2013, 8:52am
Rating: | Views: 1100 | Comments: 0
Irish annals reveal volcanic impacts
Researchers have been able to trace the impact of volcanic eruptions on the climate over a 1,200 year period by assessing ancient Irish texts.
Researchers have been able to trace the impact of volcanic eruptions on the climate over a 1,200 year period by assessing ancient Irish texts.
Geology
Source: BBC News
Posted on: Thursday, Jun 06, 2013, 8:52am
Rating: | Views: 1122 | Comments: 0
Source: BBC News
Posted on: Thursday, Jun 06, 2013, 8:52am
Rating: | Views: 1122 | Comments: 0
Video: Cracking the ice code 
What happened the last time a vegetated Earth shifted from an extremely cold climate to desert-like conditions? And what does it tell us about climate change today?
What happened the last time a vegetated Earth shifted from an extremely cold climate to desert-like conditions? And what does it tell us about climate change today?
Geology
Source: University of Wisconsin - Milwaukee
Posted on: Wednesday, May 22, 2013, 8:00am
Rating: | Views: 2393 | Comments: 0
Source: University of Wisconsin - Milwaukee
Posted on: Wednesday, May 22, 2013, 8:00am
Rating: | Views: 2393 | Comments: 0
The mammoth's lament: UC research shows how cosmic impact sparked devastating climate change
Herds of wooly mammoths once shook the earth beneath their feet, sending humans scurrying across the landscape of prehistoric Ohio. But then something much larger shook the Earth itself, and at that point these mega mammals' days were numbered.
Herds of wooly mammoths once shook the earth beneath their feet, sending humans scurrying across the landscape of prehistoric Ohio. But then something much larger shook the Earth itself, and at that point these mega mammals' days were numbered.
Geology
Source: University of Cincinnati
Posted on: Tuesday, May 21, 2013, 1:00pm
Rating: | Views: 6889 | Comments: 0
Source: University of Cincinnati
Posted on: Tuesday, May 21, 2013, 1:00pm
Rating: | Views: 6889 | Comments: 0
Sea level influenced tropical climate during the last ice age
Scientists look at past climates to learn about climate change and the ability to simulate it with computer models. One region that has received a great deal of attention is the Indo-Pacific warm pool, the vast pool of warm water stretching along the equator from Africa to the western Pacific Ocean.
Scientists look at past climates to learn about climate change and the ability to simulate it with computer models. One region that has received a great deal of attention is the Indo-Pacific warm pool, the vast pool of warm water stretching along the equator from Africa to the western Pacific Ocean.
Geology
Source: University of Hawaii ‑ SOEST
Posted on: Monday, May 20, 2013, 10:15am
Rating: | Views: 1756 | Comments: 0
Source: University of Hawaii ‑ SOEST
Posted on: Monday, May 20, 2013, 10:15am
Rating: | Views: 1756 | Comments: 0
World's biggest ice sheets likely more stable than previously believed
For decades, scientists have used ancient shorelines to predict the stability of today's largest ice sheets in Greenland and Antarctica. Markings of a high shoreline from three million years ago, for example – when Earth was going through a warm period – were thought to be evidence of a high sea level due to ice sheet collapse at that time. This assumption has led many scientists to think that if
For decades, scientists have used ancient shorelines to predict the stability of today's largest ice sheets in Greenland and Antarctica. Markings of a high shoreline from three million years ago, for example – when Earth was going through a warm period – were thought to be evidence of a high sea level due to ice sheet collapse at that time. This assumption has led many scientists to think that if
Geology
Source: Canadian Institute for Advanced Research
Posted on: Friday, May 17, 2013, 11:45am
Rating: | Views: 1795 | Comments: 0
Source: Canadian Institute for Advanced Research
Posted on: Friday, May 17, 2013, 11:45am
Rating: | Views: 1795 | Comments: 0
Climate record from bottom of Russian lake shows Arctic was warmer millions of years ago
The Arctic was very warm during a period roughly 3.5 to 2 million years ago--a time when research suggests that the level of carbon dioxide in the atmosphere was roughly comparable to today's--leading to the conclusion that relatively small fluctuations in carbon dioxide levels can have a major influence on Arctic climate, according to a new analysis of the longest terrestrial sediment core ever c
The Arctic was very warm during a period roughly 3.5 to 2 million years ago--a time when research suggests that the level of carbon dioxide in the atmosphere was roughly comparable to today's--leading to the conclusion that relatively small fluctuations in carbon dioxide levels can have a major influence on Arctic climate, according to a new analysis of the longest terrestrial sediment core ever c
Geology
Source: National Science Foundation
Posted on: Monday, May 13, 2013, 11:45am
Rating: | Views: 1680 | Comments: 0
Source: National Science Foundation
Posted on: Monday, May 13, 2013, 11:45am
Rating: | Views: 1680 | Comments: 0
New analysis suggests wind, not water, formed mound on Mars
A roughly 3.5-mile high Martian mound that scientists suspect preserves evidence of a massive lake might actually have formed as a result of the Red Planet's famously dusty atmosphere, an analysis of the mound's features suggests. If correct, the research could dilute expectations that the mound holds evidence of a large body of water, which would have important implications for understanding Mars
A roughly 3.5-mile high Martian mound that scientists suspect preserves evidence of a massive lake might actually have formed as a result of the Red Planet's famously dusty atmosphere, an analysis of the mound's features suggests. If correct, the research could dilute expectations that the mound holds evidence of a large body of water, which would have important implications for understanding Mars
Geology
Source: Princeton University
Posted on: Tuesday, May 07, 2013, 2:45pm
Rating: | Views: 2012 | Comments: 0
Source: Princeton University
Posted on: Tuesday, May 07, 2013, 2:45pm
Rating: | Views: 2012 | Comments: 0
Scientists uncover relationship between lavas erupting on sea floor and deep-carbon cycle
Scientists from the Smithsonian and the University of Rhode Island have found unsuspected linkages between the oxidation state of iron in volcanic rocks and variations in the chemistry of the deep Earth. Not only do the trends run counter to predictions from recent decades of study, they belie a role for carbon circulating in the deep Earth. The team's research was published May 2 in Science
Scientists from the Smithsonian and the University of Rhode Island have found unsuspected linkages between the oxidation state of iron in volcanic rocks and variations in the chemistry of the deep Earth. Not only do the trends run counter to predictions from recent decades of study, they belie a role for carbon circulating in the deep Earth. The team's research was published May 2 in Science
Geology
Source: Smithsonian
Posted on: Friday, May 03, 2013, 1:15pm
Rating: | Views: 2222 | Comments: 0
Source: Smithsonian
Posted on: Friday, May 03, 2013, 1:15pm
Rating: | Views: 2222 | Comments: 0
Northern plains site has twice as much oil as previously thought, Interior says
A vast geologic formation in three northern Plains states contains twice as much oil and three times as much natural gas as the federal government previously estimated, according to a reassessment of the area released by the Interior Department Tuesday.
A vast geologic formation in three northern Plains states contains twice as much oil and three times as much natural gas as the federal government previously estimated, according to a reassessment of the area released by the Interior Department Tuesday.
Geology
Source: Washington Post
Posted on: Wednesday, May 01, 2013, 10:01am
Rating: | Views: 1663 | Comments: 0
Source: Washington Post
Posted on: Wednesday, May 01, 2013, 10:01am
Rating: | Views: 1663 | Comments: 0
No Redoubt: Volcanic eruption forecasting improved
Forecasting volcanic eruptions with success is heavily dependent on recognizing well-established patterns of pre-eruption unrest in the monitoring data. But in order to develop better monitoring procedures, it is also crucial to understand volcanic eruptions that deviate from these patterns.
Forecasting volcanic eruptions with success is heavily dependent on recognizing well-established patterns of pre-eruption unrest in the monitoring data. But in order to develop better monitoring procedures, it is also crucial to understand volcanic eruptions that deviate from these patterns.
Geology
Source: Carnegie Institution
Posted on: Tuesday, Apr 30, 2013, 2:30pm
Rating: | Views: 5696 | Comments: 0
Source: Carnegie Institution
Posted on: Tuesday, Apr 30, 2013, 2:30pm
Rating: | Views: 5696 | Comments: 0
Feast clue to smell of ancient earth
Tiny 1,900 million-year-old fossils from rocks around Lake Superior, Canada, give the first ever snapshot of organisms eating each other and suggest what the ancient Earth would have smelled like.
Tiny 1,900 million-year-old fossils from rocks around Lake Superior, Canada, give the first ever snapshot of organisms eating each other and suggest what the ancient Earth would have smelled like.
Geology
Source: University of Oxford
Posted on: Tuesday, Apr 30, 2013, 11:15am
Rating: | Views: 1722 | Comments: 0
Source: University of Oxford
Posted on: Tuesday, Apr 30, 2013, 11:15am
Rating: | Views: 1722 | Comments: 0
Supervolcano eruptions may not be so deadly after all
A massive volcanic eruption 75,000 years ago seems to have had little effect on the climate, suggesting that such huge blasts could be survivable
A massive volcanic eruption 75,000 years ago seems to have had little effect on the climate, suggesting that such huge blasts could be survivable
Geology
Source: New Scientist
Posted on: Tuesday, Apr 30, 2013, 10:18am
Rating: | Views: 1100 | Comments: 0
Source: New Scientist
Posted on: Tuesday, Apr 30, 2013, 10:18am
Rating: | Views: 1100 | Comments: 0
The Earth's center is 1,000 degrees hotter than previously thought
Scientists have determined the temperature near the Earth's centre to be 6000 degrees Celsius, 1000 degrees hotter than in a previous experiment run 20 years ago. These measurements confirm geophysical models that the temperature difference between the solid core and the mantle above, must be at least 1500 degrees to explain why the Earth has a magnetic field. The scientis
Scientists have determined the temperature near the Earth's centre to be 6000 degrees Celsius, 1000 degrees hotter than in a previous experiment run 20 years ago. These measurements confirm geophysical models that the temperature difference between the solid core and the mantle above, must be at least 1500 degrees to explain why the Earth has a magnetic field. The scientis
Geology
Source: European Synchrotron Radiation Facility
Posted on: Friday, Apr 26, 2013, 10:00am
Rating: | Views: 1790 | Comments: 0
Source: European Synchrotron Radiation Facility
Posted on: Friday, Apr 26, 2013, 10:00am
Rating: | Views: 1790 | Comments: 0
Rethinking early atmospheric oxygen
A research team of biogeochemists at the University of California, Riverside has provided a new view on the relationship between the earliest accumulation of oxygen in the atmosphere, arguably the most important biological event in Earth history, and its relationship to the sulfur cycle.
A research team of biogeochemists at the University of California, Riverside has provided a new view on the relationship between the earliest accumulation of oxygen in the atmosphere, arguably the most important biological event in Earth history, and its relationship to the sulfur cycle.
Geology
Source: University of California - Riverside
Posted on: Thursday, Apr 25, 2013, 2:45pm
Rating: | Views: 1993 | Comments: 0
Source: University of California - Riverside
Posted on: Thursday, Apr 25, 2013, 2:45pm
Rating: | Views: 1993 | Comments: 0
Research aims to settle debate over origin of Yellowstone volcano
A debate among scientists about the geologic formation of the supervolcano encompassing the region around Yellowstone National Park has taken a major step forward, thanks to new evidence provided by a team of international researchers led by University of Rhode Island Professor Christopher Kincaid.
A debate among scientists about the geologic formation of the supervolcano encompassing the region around Yellowstone National Park has taken a major step forward, thanks to new evidence provided by a team of international researchers led by University of Rhode Island Professor Christopher Kincaid.
Geology
Source: University of Rhode Island
Posted on: Tuesday, Apr 16, 2013, 2:15pm
Rating: | Views: 2227 | Comments: 0
Source: University of Rhode Island
Posted on: Tuesday, Apr 16, 2013, 2:15pm
Rating: | Views: 2227 | Comments: 0
New chart shows the entire topography of the Antarctic seafloor in detail for the first time
Reliable information on the depth and floor structure of the Southern Ocean has so far been available for only few coastal regions of the Antarctic. An international team of scientists under the leadership of the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, has for the first time succeeded in creating a digital map of the entire Antar
Reliable information on the depth and floor structure of the Southern Ocean has so far been available for only few coastal regions of the Antarctic. An international team of scientists under the leadership of the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, has for the first time succeeded in creating a digital map of the entire Antar
Geology
Source: Helmholtz Association of German Research Centres
Posted on: Wednesday, Apr 10, 2013, 11:45am
Rating: | Views: 2148 | Comments: 0
Source: Helmholtz Association of German Research Centres
Posted on: Wednesday, Apr 10, 2013, 11:45am
Rating: | Views: 2148 | Comments: 0
Surprising predictor of ecosystem chemistry
Carnegie scientists have found that the plant species making up an ecosystem are better predictors of ecosystem chemistry than environmental conditions such as terrain, geology, or altitude. This is the first study using a new, high-resolution airborne, chemical-detecting instrument to map multiple ecosystem chemicals. The result, published in the April 8, 2013, Early Edition of
Carnegie scientists have found that the plant species making up an ecosystem are better predictors of ecosystem chemistry than environmental conditions such as terrain, geology, or altitude. This is the first study using a new, high-resolution airborne, chemical-detecting instrument to map multiple ecosystem chemicals. The result, published in the April 8, 2013, Early Edition of
Environment
Source: Carnegie Institution
Posted on: Tuesday, Apr 09, 2013, 10:45am
Rating: | Views: 2056 | Comments: 0
Source: Carnegie Institution
Posted on: Tuesday, Apr 09, 2013, 10:45am
Rating: | Views: 2056 | Comments: 0
Scientists image deep magma beneath Pacific seafloor volcano
Since the plate tectonics revolution of the 1960s, scientists have known that new seafloor is created throughout the major ocean basins at linear chains of volcanoes known as mid-ocean ridges. But where exactly does the erupted magma come from?
Since the plate tectonics revolution of the 1960s, scientists have known that new seafloor is created throughout the major ocean basins at linear chains of volcanoes known as mid-ocean ridges. But where exactly does the erupted magma come from?
Geology
Source: University of California - San Diego
Posted on: Thursday, Mar 28, 2013, 8:45am
Rating: | Views: 2351 | Comments: 0
Source: University of California - San Diego
Posted on: Thursday, Mar 28, 2013, 8:45am
Rating: | Views: 2351 | Comments: 0
Wastewater injection spurred biggest earthquake yet, says study
A new study in the journal Geology is the latest to tie a string of unusual earthquakes, in this case, in central Oklahoma, to the injection of wastewater deep underground. Researchers now say that the magnitude 5.7 earthquake near Prague, Okla., on Nov. 6, 2011, may also be the largest ever linked to wastewater injection. Felt as far off as Milwaukee, more than 800 miles away, the quake—th
A new study in the journal Geology is the latest to tie a string of unusual earthquakes, in this case, in central Oklahoma, to the injection of wastewater deep underground. Researchers now say that the magnitude 5.7 earthquake near Prague, Okla., on Nov. 6, 2011, may also be the largest ever linked to wastewater injection. Felt as far off as Milwaukee, more than 800 miles away, the quake—th
Geology
Source: The Earth Institute at Columbia University
Posted on: Wednesday, Mar 27, 2013, 11:45am
Rating: | Views: 1898 | Comments: 0
Source: The Earth Institute at Columbia University
Posted on: Wednesday, Mar 27, 2013, 11:45am
Rating: | Views: 1898 | Comments: 0
Global nitrogen availability consistent for past 500 years, linked to carbon levels
A Kansas State University research team has found that despite humans increasing nitrogen production through industrialization, nitrogen availability in many ecosystems has remained steady for the past 500 years. Their work appears in the journal Nature.
A Kansas State University research team has found that despite humans increasing nitrogen production through industrialization, nitrogen availability in many ecosystems has remained steady for the past 500 years. Their work appears in the journal Nature.
Geology
Source: Kansas State University
Posted on: Friday, Mar 22, 2013, 11:15am
Rating: | Views: 1684 | Comments: 0
Source: Kansas State University
Posted on: Friday, Mar 22, 2013, 11:15am
Rating: | Views: 1684 | Comments: 0
Megavolcanoes tied to pre-dinosaur mass extinction
Scientists examining evidence across the world from New Jersey to North Africa say they have linked the abrupt disappearance of half of earth's species 200 million years ago to a precisely dated set of gigantic volcanic eruptions. The eruptions may have caused climate changes so sudden that many creatures were unable to adapt—possibly on a pace similar to that of human-influenced climate warming t
Scientists examining evidence across the world from New Jersey to North Africa say they have linked the abrupt disappearance of half of earth's species 200 million years ago to a precisely dated set of gigantic volcanic eruptions. The eruptions may have caused climate changes so sudden that many creatures were unable to adapt—possibly on a pace similar to that of human-influenced climate warming t
Geology
Source: The Earth Institute at Columbia University
Posted on: Friday, Mar 22, 2013, 10:30am
Rating: | Views: 1830 | Comments: 0
Source: The Earth Institute at Columbia University
Posted on: Friday, Mar 22, 2013, 10:30am
Rating: | Views: 1830 | Comments: 0
Slabs of ancient tectonic plate still lodged under California
Large chunks of an ancient tectonic plate that slid under North America millions of years ago are still present under parts of central California and Mexico, according to new research led by Brown University geophysicists.
Large chunks of an ancient tectonic plate that slid under North America millions of years ago are still present under parts of central California and Mexico, according to new research led by Brown University geophysicists.
Geology
Source: Brown University
Posted on: Tuesday, Mar 19, 2013, 2:45pm
Rating: | Views: 1652 | Comments: 0
Source: Brown University
Posted on: Tuesday, Mar 19, 2013, 2:45pm
Rating: | Views: 1652 | Comments: 0
Significant contribution of Greenland's peripheral glaciers to sea-level rise
The scientists looked at glaciers which behave independently from the ice sheet, despite having some physical connection to it, and those which are not connected at all.
The scientists looked at glaciers which behave independently from the ice sheet, despite having some physical connection to it, and those which are not connected at all.
Geology
Source: University of Zurich
Posted on: Tuesday, Mar 19, 2013, 12:15pm
Rating: | Views: 1660 | Comments: 0
Source: University of Zurich
Posted on: Tuesday, Mar 19, 2013, 12:15pm
Rating: | Views: 1660 | Comments: 0
The making of Antarctica's hidden fjords
Antarctica's topography began changing from flat to fjord-filled starting about 34 million years ago, according to a new report from a University of Arizona-led team of geoscientists.
Antarctica's topography began changing from flat to fjord-filled starting about 34 million years ago, according to a new report from a University of Arizona-led team of geoscientists.
Geology
Source: University of Arizona
Posted on: Thursday, Mar 07, 2013, 8:45am
Rating: | Views: 1539 | Comments: 0
Source: University of Arizona
Posted on: Thursday, Mar 07, 2013, 8:45am
Rating: | Views: 1539 | Comments: 0
Volcanic aerosols, not pollutants, tamped down recent Earth warming
A team led by the University of Colorado Boulder looking for clues about why Earth did not warm as much as scientists expected between 2000 and 2010 now thinks the culprits are hiding in plain sight -- dozens of volcanoes spewing sulfur dioxide.
A team led by the University of Colorado Boulder looking for clues about why Earth did not warm as much as scientists expected between 2000 and 2010 now thinks the culprits are hiding in plain sight -- dozens of volcanoes spewing sulfur dioxide.
Geology
Source: University of Colorado at Boulder
Posted on: Monday, Mar 04, 2013, 10:45am
Rating: | Views: 1767 | Comments: 0
Source: University of Colorado at Boulder
Posted on: Monday, Mar 04, 2013, 10:45am
Rating: | Views: 1767 | Comments: 0
Scientists identify ancient micro-continent under the Indian Ocean
Scientists at the Universities of Liverpool have found evidence of an ancient micro-continent buried beneath the Indian Ocean.
Scientists at the Universities of Liverpool have found evidence of an ancient micro-continent buried beneath the Indian Ocean.
Geology
Source: University of Liverpool
Posted on: Monday, Mar 04, 2013, 10:30am
Rating: | Views: 1626 | Comments: 0
Source: University of Liverpool
Posted on: Monday, Mar 04, 2013, 10:30am
Rating: | Views: 1626 | Comments: 0
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