Plate Tectonics

Michelle and I did the ocean mission from the Distance of Macapa island to Livreville, Africa. Between the two continents there is the Mid-Atlantic ridge, that we ran into after 1,400 feet from Macapa. That is also where the South American plate and African plate meet. I also believe that the end of my margin went about 1100 feet from Macapa. Eviendce, from my ocean floor map shows that because there is a big drop off from there. About 3500 miles out we hit the the african margin. On the map it shows a slope leading to a kinda straight top. I hope im sure about this cause the trench also pushs new rock/land into ocean makin it look like Margins on top. In conclusion, my trip wasnt flat land and very confusing. :) But what causes it to not be flat is the plates colliding together and creating land forms like mountains or even trenches. These plates were most likely the African Plate and the South American Plate and Scotia Plate.