News tagged with archean era
Splatters of molten rock signal period of intense asteroid impacts on Earth
New research reveals that the Archean era — a formative time for early life from 3.8 billion years ago to 2.5 billion years ago — experienced far more major asteroid impacts than had been previously ...
Space & Earth / Space Exploration
Apr 25, 2012 |
4.6 / 5 (7) |
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Earth's early ocean cooled more than a billion years earlier than thought (w/ Video)
(PhysOrg.com) -- The scalding-hot sea that supposedly covered the early Earth may in fact never have existed, according to a new study by Stanford University researchers who analyzed isotope ratios in 3.4 ...
Space & Earth / Earth Sciences
Nov 11, 2009 |
4.3 / 5 (12) |
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Search results for archean era
North American continent is a layer cake, scientists discover
(PhysOrg.com) -- The North American continent is not one thick, rigid slab, but a layer cake of ancient, 3 billion-year-old rock on top of much newer material probably less than 1 billion years old, according ...
Space & Earth / Earth Sciences
Aug 25, 2010 |
4.7 / 5 (7) |
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Volcanic Activity Key to Oxygen-rich Atmosphere
Next time you catch a breath, be thankful, for a change, that the Earth's surface is dotted with volcanoes.
Space & Earth / Earth Sciences
Aug 29, 2007 |
3.9 / 5 (24) |
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Everything starts with recognition
A human body has more than 10 to the power of 27 molecules with about one hundred thousand different shapes and functions. Interactions between molecules determine our structure and keep us alive. Researchers ...
Apr 23, 2007 |
4.6 / 5 (25) |
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Selecting life: Scientists find new way to search for origin of life
Over the last half century, researchers have found that mineral surfaces may have played critical roles organizing, or activating, molecules that would become essential ingredients to all life--such as amino acids (the building ...
Nov 09, 2006 |
4.3 / 5 (29) |
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Canadian diamonds found to be oldest on Earth
For the first time, scientists have dated diamonds from the recently discovered diamond fields in Canada’s Northwest Territories and have found them to be the oldest precisely dated diamonds on Earth. They ...
Space & Earth / Earth Sciences
Aug 22, 2006 |
4 / 5 (21) |
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List of search results for archean era
