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007127 Visit since
| Volcanoes of Mexico |
by Prof. German Estrada
June 8th, 2003 |
Mexico
This week we’re bringing
a little bit more of information about our Mexico Magico.
This information is related to the volcanoes that exist
in this country.
 |
| 1. Pinacate |
12. Amealco |
| 2. Tres Virgenes |
13. Jocotitlan |
| 3. La Reforma |
14. Toluca |
| 4. Barcena |
15. Chichinautzin |
| 5. Socorro |
16. Popocateptl |
| 6. Sanganguey |
17. La Malinche |
| 7. Ceboruco |
18. Los Humeros |
| 8. La Primavera |
19. Pico de Orizaba |
| 9. Colima |
20. San Martin |
| 10. Paricutin |
21. El Chichon |
| 11. El Jorullo |
22. Tacana |
|
 Mexico
has a large number of volcanoes. Most of them occur
in a roughly east-west band that has been named the
"Trans-Mexican Volcanic belt," but you can
see that there are some outside this group as well.
There are all kinds of volcanoes in Mexico. Most of
them are pretty typical stratovolcanoes (the yellow
triangles). There are also some large rhyolite caldera
complexes (the pink circles). Finally, there are a number
of monogenetic fields (the gray-lined pattern), within
which there are many small cinder cones, maars, tuff
rings, small lava shields, etc. Some of the individual
vents within the monogenetic fields are famous enough
to have their own names (the orange triangles).
The plate tectonic setting in Mexico
is complex. In this map (which was adapted from maps
drawn by other researchers), you can see that there
is quite a complicated mixture of spreading ridges (red),
transform faults (dark blue), and sub-duction trenches
(light blue). Most of the volcanoes (6,7,9-11,13-22)
are probably associated with the sub-duction of various
small tectonic plates under the North American plate.
Other volcanoes (2-5) are possibly associated with "leaky"
transform faults, and the rest are unclear.
gestrada@pvnet.com.mx
Prof. Germán Estrada is the
author of the best selling book, "México
Mágico: Everything You Wanted To Know About... But Nobody Told
You..." available in Puerto Vallarta at The Net House, Mail Boxes, Etc.,
Books, Books as well as directly from the author by internet. Archives
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