how is the andean type subduction zone different from the aleutian type subduction zone? are there pictures?
See the figure here:
http://www.geology.sdsu.edu/how_volcanoes_work/subducvolc_page.html
For the Aleutians, the subduction zone is in the ocean, and the volcanoes that form are the Aleutian islands themselves.
For the Andes, the subduction zone is below the western South American coast itself, and the volcanoes that appear are just east of that, on land. The affect of the raising of the land (the very high mountain range) is much more apparent as well.
The Andean type subduction zone and the Aleutian type subduction zone are two different types of subduction zones that occur at different locations on the planet. Here's how they differ:
1. Location: The Andean type subduction zone is found along the western coast of South America, stretching from Colombia to Chile. On the other hand, the Aleutian type subduction zone is located in the northwestern part of North America, in the Aleutian Islands of Alaska.
2. Tectonic Plates Involved: In the Andean type subduction zone, the oceanic Nazca Plate is subducted beneath the continental South American Plate. In contrast, the Aleutian type subduction zone involves the Pacific Plate subducting beneath the North American Plate.
3. Subduction Angle: The subduction angle in the Andean type zone is generally steeper, often approaching vertical angles. This leads to large earthquakes and volcanic activity. On the other hand, the subduction angle in the Aleutian type zone is typically shallower, resulting in a different kind of seismicity and volcanic behavior.
While I cannot display pictures directly, you can easily find visual representations and diagrams of both subduction zones by performing an image search using keywords such as "Andean subduction zone" and "Aleutian subduction zone" on search engines like Google or Bing. This will provide you with numerous illustrations and maps that can help visualize the differences between these two subduction zones.