An international team of researchers has found evidence in ancient river sediments that suggest climate change, not a Mongol invasion, ultimately doomed the ancient Transoxania civilization. In their paper published in Proceedings ...
New University of Melbourne research has revealed that ice ages over the last million years ended when the tilt angle of the Earth's axis was approaching higher values.
Earth Sciences
Mar 13, 2020
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Besides swathes of destroyed vegetation, forest fires in Amazonia leave their imprint on the Amazon River and its tributaries. Incomplete burning of trees results in the production of black carbon, solid particles that enter ...
Environment
Nov 20, 2019
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34
A new study by a team of geologists that includes Kansas State University's Matthew Brueseke has found that the Wrangell volcanic belt in Alaska's Wrangell-St. Elias National Park and Preserve is older than previously recognized ...
Earth Sciences
Dec 19, 2018
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4
The Earth is 4.565 billion years old, give or take a few million years. How do scientists know that? Since there's no "established in" plaque stuck in a cliff somewhere, geologists deduced the age of the Earth thanks to a ...
Earth Sciences
Oct 23, 2017
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3
The Earth's magnetic field periodically reverses such that the north magnetic pole becomes the south magnetic pole. The latest reversal is called by geologists the Matuyama-Brunhes boundary (MBB), and occurred approximately ...
Earth Sciences
Jul 7, 2015
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Recent puzzling observations of tiny variations in nuclear decay rates have led some to question the science of using decay rates to determine the relative ages of rocks and organic materials. Scientists from the National ...
General Physics
Sep 15, 2010
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