What do we find at Convergent Subduction Zones (Ocean-Ocean)?
• Compressional stress • Reverse Faults & Folds • Explosive Volcanoes (Intermediate composition) • Island Arc Chains • Trenches found off shore • Currently forming the Aleutian Islands of Alaska,the islands of Japan, and the islands of Indonesia. • All of the above Island arcs are a part of the Pacific Rim of Fire • What do we find at Convergent Mountain Building Regions (Continent-Continent)? • Compressional Stress • Reverse Faults & Folds • One continent thrusts up over the other • No meltingno volcanoes. • Currently occurs as the Indian Continental Plate pushs up the Eurasian Plate, forming the Himalayas. 2. Volcanoes! (11/12, 11/14 & 11/19) • Volcanoes differ in properties based on the composition of the magma and the amount of gasses dissolved in the magma. • Volcanoes occur where there is magma rising to the surface. This occurs at subduction zones, divergent boundaries and hot spots (hot spots are isolated plumes of magma that rise to the surface–they are not related to plate t
