In the mid-1990s, scientists primarily used sonar technology to map the mid-ocean ridge. This technique, known as multibeam sonar, allowed researchers to measure the depth and shape of the seafloor with high precision. By emitting sound waves from a transmitter and recording the time it took for the waves to bounce back from the seafloor, scientists could create detailed maps of the mid-ocean ridge and other underwater features. This technology greatly revolutionized our understanding of the ocean floor and its geological processes.
