Introduction Popocate'petl is a volcano found in Mexico that I have been following for 3 months. It is the result of a continental-oceanic plate convergence (fig. 1). When the oceanic lithosphere (the Rivera and Cocos plates) collide with the continental lithosphere (the North American pl...

Yellowstone National Park is the most famous and the first U.S. national park. It' s located on the territory of three states: Wyoming, Idaho and Montana. Yellowstone occupies the territory of 3.470 square miles (nearly 9,900 km2) and is mostly located in northwestern part of Wyoming. Yellowst...

As our planet has evolved, major land forms have often been dependent on igneous activity. Features ranging from the mighty Andes, to the smallest hot spring are all dependent on the same processes of fire and earth that fuel and form the heat engines of our planet. One of these ...

Central America has numerous, fascinating volcanoes of various types. Many are currentlyactive? while others are not. Of the active volcanoes some are potentially hazardous for nearby towns. Others attract visitors as if they were some kind of fantastic side-show. This paper will describe some o...