Tharp was a pioneering cartographer and geologist whose meticulous maps of the Atlantic Ocean floor revealed the unseen and ...

The structure of the ocean floor is extremely vast and irregular. In 1948, when Marie Tharp started working at the Lamont ...

The Atlantic is the second largest ocean on the planet ... This toxic layer looks so dark it resembles the hole's floor but is actually a boundary which separates oxygenated water from oxygen ...