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

In my opinion, however, even the admiration she has received for her maps—including the “Atlantic Ocean Floor” map, published in 1968 in National Geographic magazine (included below)—doesn ...

Geologist Marie Tharp turned years of data into easily digestible maps. She also discovered the Mid-Atlantic ... bottom of the ocean. Back then, no one knew what the ocean floor looked like ...