Chaitén, Chile 2008 Volcano

Chaitén, Chile 2008 Chaitén is a small volcano aim on the flank of the Michinmahuida volcano in southerly Chile. It is buckram on the West coast of South America approximately 150km east of the Peru Chile Trench. At this margin, clearly marked on the map and cross section opposite, there is oceanic to Continental convergence. This is a destructive margin, where the boringr Nazca menage is subducted beneath the less thick-skulled continental lithosphere of the South American coat. As the plate descends it sources earthquakes in the Benioff zone, and volcanoes occur here be own of melting of the plate in the asthenosphere. These are the causes of this volcano, which is explosive because the lava is Rhyolitic, has luxuriously gas pressure and live Silica content. Chaitén is also part of the worlds longest fold mountain chain, the Andes Mountains, which are crumpled up be the tectonic forces pushing these 2 plates to travelher. In this gray part of the subduction zone the oceanic plate dips at a steep angle, while the normalityerly end may be experiencing flat-slab subduction (in which the oceanic slab slides beneath the continental plate at a very low angle).

This low angle of subduction may absolve the relative lack of volcanic activity in the Union part of Chile, compared to the extremely active southern volcanic mountains, which was the cause of the Chaitén eruption. This volcano has a history of eruptions but in human terms it is infrequent. Before 2008, it consisted mainly of a rhyolitic lava bean plant that was last active 9,400 years ago. This is very low frequence! In May 2008, Chaitén began erupting violently, producing numerou! s plumes, pyroclastic flows, minor earthquakes and lahars, and well-formed construction a new lava dome on the north gradient of the old one. The ash cloud was up to 17 kilometres high and was visible on satellite images for hundreds of kilometres over the Atlantic. A interchange spine of lava was pushed out of the new dome, but allow presumable collapse; as such features are...If you want to get a full essay, order it on our website: BestEssayCheap.com

If you want to get a full essay, visit our page: cheap essay