News tagged with geologic time scale
New mystery on Mars' forgotten plains
(PhysOrg.com) -- One of the supposedly best understood and least interesting landscapes on Mars is hiding something that could rewrite the planet's history. Or not. In fact, about all that is certain is that ...
Space & Earth / Space Exploration
Oct 12, 2011 |
4.9 / 5 (10) |
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Earthquakes actually aftershocks of 19th century quakes
(PhysOrg.com) -- When small earthquakes shake the central U.S., citizens often fear the rumbles are signs a big earthquake is coming. Fortunately, new research instead shows that most of these earthquakes ...
Space & Earth / Earth Sciences
Nov 04, 2009 |
4.4 / 5 (20) |
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End of an Era: New Ruling Decides the Boundaries of Earth's History
After decades of debate and four years of investigation an international body of earth scientists has formally agreed to move the boundary dates for the prehistoric Quaternary age by 800,000 years, reports the Journal of ...
Space & Earth / Earth Sciences
Sep 22, 2009 |
4.8 / 5 (4) |
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Search results for geologic time scale
'Like a jet through solid rock': Volcanic arc fed by rapid fluid pulses
In the depths of the earth, it is anything but peaceful: large quantities of liquids carve their way through the rock as fluids, causing magma to form. A research team led by the University of Münster, ...
Space & Earth / Earth Sciences
9 hours ago |
3 / 5 (1) |
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Researchers conclude that climate change led to collapse of ancient Indus civilization
A new study combining the latest archaeological evidence with state-of-the-art geoscience technologies provides evidence that climate change was a key ingredient in the collapse of the great Indus or Harappan Civilization ...
Space & Earth / Earth Sciences
May 28, 2012 |
4.7 / 5 (18) |
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Groundwater depletion in semiarid regions of Texas and California threatens US food security
The nation's food supply may be vulnerable to rapid groundwater depletion from irrigated agriculture, according to a new study by researchers at The University of Texas at Austin and elsewhere.
May 28, 2012 |
4.9 / 5 (7) |
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New model of geological strata may aid oil extraction, water recovery and Earth history studies
(Phys.org) -- A Sandia modeling study contradicts a long-held belief of geologists that pore sizes and chemical compositions are uniform throughout a given strata, which are horizontal slices of sedimentary ...
Space & Earth / Earth Sciences
May 23, 2012 |
5 / 5 (4) |
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MBARI discovers new deep-sea hydrothermal vents using sonar-mapping robot
“As the remotely operated vehicle (ROV) descended into the blue depths above the Alarcón Rise, the control room was abuzz with anticipation," wrote MBARI geologist Julie Martin in her April 22nd cruise log. "Today we [are] planning to dive on one of the strangest envi ...
Space & Earth / Earth Sciences
May 14, 2012 |
5 / 5 (2) |
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New dynamic computer model gains greater insight into earthquake cycles
For those who study earthquakes, one major challenge has been trying to understand all the physics of a fault—both during an earthquake and at times of "rest"—in order to know more about how a particular ...
Space & Earth / Earth Sciences
May 10, 2012 |
5 / 5 (1) |
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Mars Rover starts its 9th year
Eight years after landing on Mars for what was planned as a three-month mission, NASA's enduring Mars Exploration Rover Opportunity is working on what essentially became a new mission five months ago.
Space & Earth / Space Exploration
May 03, 2012 |
5 / 5 (11) |
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Martian volcanic glass could be hotspot for life
Water may have played a role in forming plains of volcanic glass that spread across nearly a third of Mars. The discovery of this volcanic glass could steer scientists toward subglacial lakes where martian ...
Space & Earth / Space Exploration
Apr 26, 2012 |
5 / 5 (1) |
5
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Researchers find new form of Mars lava flow
High-resolution photos of lava flows on Mars reveal coiling spiral patterns that resemble snail or nautilus shells. Such patterns have been found in a few locations on Earth, but never before on Mars. The ...
Space & Earth / Space Exploration
Apr 26, 2012 |
5 / 5 (4) |
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First Mars Express gravity results plot volcanic history
(Phys.org) -- Five years of Mars Express gravity mapping data are providing unique insights into what lies beneath the Red Planet’s largest volcanoes. The results show that the lava grew denser over time ...
Space & Earth / Space Exploration
Apr 26, 2012 |
5 / 5 (1) |
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List of search results for geologic time scale
