News tagged with geological layers
Precipitation variability in Northeast, Southwest linked in 1,000-year analysis
An analysis of precipitation data collected from a lakebed in New York and a Rhode Island estuary has provided a link between the variability of precipitation in the Northeast with that of the Southwest. The results validate ...
Space & Earth / Earth Sciences
Nov 08, 2011 |
3.5 / 5 (4) |
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Worms among first animals to surface after K-T extinction event, study finds
A new study of sediments laid down shortly after an asteroid plowed into the Gulf of Mexico 65.5 million years ago, an event that is linked to widespread global extinctions including the demise of big dinosaurs, ...
Other Sciences / Archaeology & Fossils
Oct 11, 2011 |
5 / 5 (3) |
0
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Extreme makeover: are humans reshaping Earth?
If alien geologists were to visit our planet 10 million years from now, would they discern a distinct human fingerprint in Earth's accumulating layers of rock and sediment?
May 15, 2011 |
4.6 / 5 (12) |
13
Layers in a Mars Crater Record a History of Changes
(PhysOrg.com) -- Near the center of a Martian crater about the size of Connecticut, hundreds of exposed rock layers form a mound as tall as the Rockies and reveal a record of major environmental changes on ...
Space & Earth / Space Exploration
Feb 11, 2010 |
4.8 / 5 (5) |
0
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Andes Mountains Are Older Than Previously Believed
(PhysOrg.com) -- The geologic faults responsible for the rise of the eastern Andes mountains in Colombia became active 25 million years ago—18 million years before the previously accepted start date for the ...
Space & Earth / Earth Sciences
May 15, 2009 |
4.4 / 5 (8) |
1
Geologic Findings Undermine Theories of Permian Mass Extinction Timing
(PhysOrg.com) -- New scientific findings by geologist Robert Gastaldo of Colby College in Waterville, Maine, and colleagues call into question popular theories about the largest mass extinction in Earth's ...
Space & Earth / Earth Sciences
Mar 02, 2009 |
4.1 / 5 (20) |
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