PBS11y
Discoveries in the Deep
Marie Tharp, studying echo soundings, discovers that the Mid-Atlantic Ridge conceals a long rift valley, which turns out to be part of a hidden volcanic rent that girds the global deep.
Marie Tharp pioneered mapping the bottom of the ocean 6 decades ago – scientists are still learning about Earth’s last frontier
Despite all the deep-sea expeditions and samples taken from the seabed over the past 100 years, humans still know very little ...
ZME Science on MSN5mon
A stunning map of the Atlantic Ocean seafloor — and one woman’s pioneering quest to publish it
This underwater mountain range is now called the Mid-Atlantic Ridge, and it was one ... more startling was the central valley ...