News tagged with geoscientist
Ancient ocean chemistry: Effects of biological oxygen production 100 million years before it accumulated in atmosphere
(PhysOrg.com) -- Scientists widely accept that around 2.4 billion years ago, the Earth's atmosphere underwent a dramatic change when oxygen levels rose sharply. Called the "Great Oxidation Event" (GOE), the ...
Space & Earth / Earth Sciences
Oct 29, 2009 |
4.7 / 5 (15) |
4
Researchers find rare life in Pacific ocean's depths
(PhysOrg.com) -- A joint research group of U.S. and Japanese geoscientists, including a team from UT Dallas, has discovered a system of hydrothermal vents teeming with life three miles below the surface of ...
Space & Earth / Earth Sciences
Feb 23, 2012 |
4.2 / 5 (6) |
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Scientists find evidence of Roman period megadrought
A new study at the UA's Laboratory of Tree-Ring Research has revealed a previously unknown multi-decade drought period in the second century A.D. The findings give evidence that extended periods of aridity ...
Space & Earth / Earth Sciences
Nov 04, 2011 |
3.7 / 5 (11) |
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Onstott's discovery of worms in Earth's depths raises questions about life in space
After digging holes in the Earth's crust for nearly two decades, Princeton University geoscientist Tullis Onstott is now making headlines for unearthing "worms from hell."
Space & Earth / Space Exploration
Jul 12, 2011 |
5 / 5 (11) |
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Monsoons spinning the Earth's plates: study
(PhysOrg.com) -- Scientists have for the first time shown a link between intensifying climate events and tectonic plate movement in findings that could provide a valuable insight into why huge tremors occur.
Space & Earth / Earth Sciences
Apr 13, 2011 |
3.2 / 5 (13) |
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Scientists Return from Expedition to Drill Beneath Frozen Russian Lake
(PhysOrg.com) -- A team of scientists from the United States, Germany, Russia and Austria has just returned from a six-month drilling expedition to a frozen lake in Siberia: Lake El'gygytgyn, "Lake E" for ...
Space & Earth / Earth Sciences
May 28, 2009 |
4.7 / 5 (7) |
0
Ocean's journey towards the center of the Earth
A Monash geoscientist and a team of international researchers have discovered the existence of an ocean floor was destroyed 50 to 20 million years ago, proving that New Caledonia and New Zealand are geographically ...
Space & Earth / Earth Sciences
Mar 05, 2009 |
4.5 / 5 (10) |
2
Stalagmites in Northeast Brazilian Caves Confirm 9,000-Year Model of Diminishing Rainfall
(PhysOrg.com) -- Until recently, researchers studying climate history in Brazil’s dry Nordeste region expected it to have wet and dry periods similar to the rest of South America. But over the past 9,000 years, ...
Space & Earth / Earth Sciences
Feb 25, 2009 |
4.8 / 5 (4) |
0
A push from the Mississippi kept Deepwater Horizon oil slick off shore, research shows
When the Deepwater Horizon drilling rig exploded April 20, 2010, residents feared that their Gulf of Mexico shores would be inundated with oil. And while many wetland habitats and wildlife were oiled during the three-month ...
May 10, 2012 |
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Impact of warming climate doesn't always translate to streamflow
An analysis of 35 headwater basins in the United States and Canada found that the impact of warmer air temperatures on streamflow rates was less than expected in many locations, suggesting that some ecosystems may be resilient ...
Apr 06, 2012 |
5 / 5 (2) |
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Ancient deep sea rivers of sand and mud tell climate story
Planet Earth is now due for another ice age when glaciers will form and sea levels drop up to 120m. But don't get your woollies out just yet. "Any moment now" in geological speak means give or take a few hundreds of years ...
Space & Earth / Earth Sciences
Feb 29, 2012 |
not rated yet |
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Hold the salt: Coastal drinking water more vulnerable to water use than climate change
(PhysOrg.com) -- Human activity is likely a greater threat to coastal groundwater used for drinking water supplies than rising sea levels from climate change, according to a study conducted by geoscientists from the University ...
Feb 21, 2012 |
5 / 5 (1) |
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The American 'allergy' to global warming: Why?
(AP) -- Tucked between treatises on algae and prehistoric turquoise beads, the study on page 460 of a long-ago issue of the U.S. journal Science drew little attention.
Sep 24, 2011 |
3.7 / 5 (28) |
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Something odd is happening with Namibia's weather
Something's up with the weather in Namibia, say geoscientists Kyle Nichols of Skidmore College in Saratoga Springs, N.Y., and Paul Bierman of the University of Vermont in Burlington, Vt.
Sep 14, 2011 |
4.7 / 5 (6) |
1
Return of the dust bowl: Geoscientists predict a dry, dusty future for the American West
Haboobs, giant dust storms, walloped Arizona last summer — some close to 2 kilometers high and 160 kilometers wide — knocking out electricity, creating traffic jams and grounding airplanes. Even old-timers say they ...
Space & Earth / Earth Sciences
Nov 03, 2011 |
5 / 5 (2) |
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