The summary of the Deep…
Everyone used to think that the bottom floor was a mystery. Many scientists were baffled as how it looks like and the map details of it. In fact it was said that mars was more known than the ocean floors.
It was not until German scientist Alfred Wegener came up with the idea after extensive research and travelling. He had finally collected enough samples to conclude that all dry lands were once one continent called Pangea. This continent broke up 200 millions years ago and drifted to their present positions. He reasoned that south America and Africa were once connected with many evidence to back up his theory he pointed out the ancient climate similarities, fossil evidence and similarity of rock structures.
Years later this theory was finally accepted and Mateen de Wit an ecologists one of whom also found his theory to be correct as all the proofs of fossils and rocks in the ocean of south America and Africa shared some similarities. Also marine geologists Joe Cann, found this to be true from his findings regarding undulation of ocean floor from time to time.
During the cold war, submarines were commonly used. By both the Americans and the Soviets, but in order for the submarines to travel safely through the unknown deep seas, a map of the ocean floor must be made to guide these submarines. So American oceanographer Bruce Heezen and Marie Tharp and others prepared maps of the ocean floor and the mid-atlantic ridge and rift system, a mountainous chain found throughout the ocean. These maps provided additional evidence that seemed to support the continental drift theory. They did this using echo sounders which is an equipment that sends out signals that bounces from the bottom of the ocean back to the ship, creating a detailed depth of the ocean floor. Marie Tharp was the one who found out the ridge that existed in the middle of the two