South American plate
The South American plate is one of the largest continental plates (or tectonic plates) on earth .
It extends under the entire South American continent as well as a large part of the southern Atlantic (up to the mid-Atlantic ridge ). On the coasts to the Pacific and also to the Caribbean , the plate boundary coincides practically exactly with the coastline.
The South American plate borders on the Caribbean plate (in the northwest), the North American plate (north), the African plate (east), the Antarctic plate (southeast), the Scotia plate (south), again the Antarctic plate (southwest) and to the Nazca plate (west).
There may be a few other smaller plates in the transition zones to the large neighboring plates; its existence has not yet been clarified beyond doubt.