Continents in Collision
26-Mar-95 20:47:40
Sb: #176281-Continents in Collision
Fm: Kamron Kirkconnell 73740,2246
To: Jon Woolf 76557,3537
Jon
I agree that the book is a good one.
The picture on pages 84 & 85 are great but I come to a different conclusion.
We are looking at a profile of the top part of the ocean basin with miles of
basin to go. The basin actually rises a bit as it approaches the continent as
if it was bunched up a bit. Sketch out a model based on this information and
now imagine the basin moving flat for thousands of miles and then the edge
turning and diving without any fractures or cracking to allow the sharp bend in
less than a 100 miles.
The profile of the continent looks as if it continues its angle even deeper
before becoming vertical so the initial bend would need to fold back to
continue downward…what would allow it to again bend under the continent to
accomplish the task of pluming through the continent to create the volcanoes
behind this zone area?
Kamron