Latest Continental collision Stories
The earth's structure can be compared to an orange: its crust is the peel supported by the earth's heavy mantle.
Fifty million years ago, India slammed into Eurasia, a collision that gave rise to the tallest landforms on the planet, the Himalaya Mountains and the Tibetan Plateau.
What would we see and what would we learn if we were able to cut North America in half, pull it apart, and look at the resulting cross section through the continent, from the surface all the way down to its very deepest mantle roots?
Geological investigations in the Himalayas have revealed evidence that when India and Asia collided some 90 million years ago, the continental crust of the Indian tectonic plate was forced down under the Asian plate, sinking down into the Earth's mantle to a depth of at least 200 km kilometers.
A University of Missouri study published in Nature this week has found that the Earth's crust melts easier than previously thought.
Geologists at Queen's University have discovered that the time it takes for mountain ranges to form is millions of years shorter than previously thought.
The July-August issue of the GEOLOGICAL SOCIETY OF AMERICA BULLETIN includes several newsworthy items. Topics include: a possible 3-10-year warning mechanism for North American west-coast earthquakes; discovery of a 4600-year history of tsunamis on the Oregon coast; and present-day tilting of the Great Lakes region.
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