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Ancient landscape is found under 2 miles of ice in Greenland
NPR
In a surprising discovery, scientists have found evidence of a tundra landscape in Greenland that's millions of years old. The revelation goes against widely held ideas about how some glaciers work, and it suggests that at least parts of Greenland's ice sheet had survived periods of global warming intact.
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Asteroid, meteorite impacts can preserve biodata for millions of years
Sci-News.com
In two separate studies, geologists have found floral, microbial and organic matter in glass created by ancient asteroid, comet and meteorite impacts. Such glass samples could provide a snapshot of environmental conditions at the time of those impacts and could be a good place to look for signs of ancient life on Mars.
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Geologists examine historic War of 1812 earthen forts for erosion clues
UDaily
During the War of 1812, American troops built makeshift forts out of soil along rivers to hide artillery and provide cover in case of British attacks. These war relics remain two centuries later, exposed to the elements and slowly wearing away.
Geologists in the University of Delaware's College of Earth, Ocean and Environment are examining the earthen defensive structures both for their historical value and insights on erosional processes.
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AIPG
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| Date |
Event |
More Information |
| April 23-24 |
5th Conference: Innovative Environmental Assessment and Remediation Technology, Kennesaw, Ga. |
Register here; Additional information for exhibitor and sponsor opportunities available at AIPG |
| April 24-25 |
GSA Meeting, Lincoln, Neb. |
For more information, call 303-412-6205 or email aipg@aipg.org |
| May 18-21 |
GSA Meeting, Bozeman, Mont. |
For more information, call 303-412-6205 or email aipg@aipg.org |
| May 29 |
Aquifer Characterization — Groundwater Behavior in the Subsurface Environment, Lexington, Ky. |
Hosted by the AIPG Kentucky Section |
| June 1-4 |
48th U.S. Rock Mechanics Geomechanics Symposium: Rock Mechanics across Length and Time Scales, Minneapolis
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ARMA |
| June 17-18 |
4th Annual Workshop on: The Groundwater/Surface Water Interface — Characterization, Evaluation and Compliance, Roscommon, Mich. |
Hosted by the AIPG Michigan Section |
| June 25-26 |
15th Annual Energy Exposition and Symposium, Billings, Mont. |
The Energy Exposition |
| Aug. 25-27 |
2014 Unconventional Resources Technology Conference, Denver |
URTeC |
| Aug. 28-Sept. 7 |
AWG 2014 Canadian Rockies Geology Field Trip, out of Calgary, Alberta, Canada |
Register here; contact Debbie Hanneman for more information |
| Sept. 13-16 |
2014 AIPG/AHS National Conference
Water & Rocks — the Foundations of Life, Prescott, Ariz. |
Register online |
| Sept. 19-22, 2015 |
AIPG 2015 National Conference, Anchorage, Alaska |
Hosted by AIPG National and co-hosted by AIPG Alaska Section |
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Atom probe assisted dating of oldest piece of earth
Univeristy of Wisconsin-Madison via Phys.org
It's a scientific axiom: big claims require extra-solid evidence. So there were skeptics in 2001 when University of Wisconsin-Madison geoscience professor John Valley dated an ancient crystal found in Australia to 4.4 billion years ago. The date, after all, was only 100 million years after Earth started to solidify from a ball of molten rock.
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Ancient asteroid strike was more insane than we realized
io9
Around 3.26 billion years ago — long before the dinosaurs — a massive asteroid measuring nearly 36 miles across smashed into the Earth. Geologists have now reconstructed this cataclysmic event, and it was far, far bigger than we thought. Here's how things went down on that fateful day.
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Watch this terrifying recreation of the deadly Oso mudslide
io9
In late March, a major landslide occurred a few miles east of Oso, Wash., killing at least 35 people and engulfing an area approximately one square mile. Geologists are now studying the event and they're baffled by its ferocity and speed. Using a new computer model, Richard Iverson of the U.S. Geological Survey estimated that the mass of mud, rocks and trees was traveling about 60 mph when it reached the river below.
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Scientists find 'easy' way to extract rare earths from seafloor
Mining.com
While economists and geologists worry the world's supply of rare earth metals will soon be outpaced by demand, a team of German geochemists has found a way to easily extract them from the vast deposits lying under the sea. The scientists suggest rare earth metals could be mined from the solid nodes of iron and manganese found strewn across much of the deep ocean floor.
Oxygen analysis in ancient plankton fossils offers new clues about ice ages
Nature World News
A new method of establishing deep-sea and surface temperatures across the last 5 million years provides "crucial" information about how the ice ages came about, according to scientists. The study offers the first evidence that long-term trends in cooling and continental ice-volume cycles were not the same, while also providing new information on climate relationships that led to the development of ice ages over the last 2 million years.
Peru's Ubinas volcano erupts
LiveScience
One of Peru's most active volcanoes, Ubinas, erupted a massive ash cloud April 15, prompting an evacuation of Querapi near the volcano because of falling ash starting. The estimated 14,750-foot-tall ash cloud is the latest in an ongoing series of small eruptions at Ubinas, according to INGEMMET, the national geologic, mining and metallurgical institute. The volcano's activity increased recently, with several small to moderate explosions and ash clouds since April 13, the agency said in a statement.
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Study resolves controversy over nitrogen's ocean 'exit strategies'
Astrobiology Magazine
A decades-long debate over how nitrogen is removed from the ocean may now be settled by new findings from researchers at Princeton University and their collaborators at the University of Washington. The debate centers on how nitrogen becomes converted to a form that can exit the ocean and return to the atmosphere where it is reused in the global nitrogen cycle.
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USGS Scientists receive presidential awards for research on earthquakes, ecosystems and permafrost
U.S. Geological Survey
The U.S. Geological Survey is celebrating the success of three distinguished researchers who are recipients of the 2012 Presidential Early Career Award for Scientists and Engineers. This award is the highest recognition granted by the United States government to scientists and engineers in the early stages of their research careers.
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Slow-moving landslide in Wyoming ruptures house, stuns town
Los Angeles Times
A landslide that been moving slowly for two weeks on a hillside in Jackson, Wyo., has picked up speed and force, splitting apart a house and threatening others.
"The amount of movement is stunning," said Jason Rolfe, a local geologist advising the city. "In a geologic sense, it’s happening very quickly. To people displaced from their homes, it’s happening very slowly."
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