Google Doodle celebrates life of American geologist Marie Tharp 

By knowaboutstar.com

Credit - Google Images

The Library of Congress recognized Marie Tharp as one of the greatest cartographers of the 20th century on this day in 1998.

Credit - GoogleImages

Marie Tharp-She was an American geologist and oceanographic cartographer. She helped create the first map of the ocean floor.She helped create the first 

Credit - GoogleImages

Marie Tharp was an American geologist and oceanographic cartographer. Marie Tharp was born on July 30, 1920 · She was born in Ypsilanti, Michigan

Credit - GoogleImages

In 1977, Tharp and Heezen published the first complete world map of ocean floors.

Credit - GoogleImages

Their work helped to prove the theory of plate tectonics, the idea that the continents move over time, which was controversial until then.

Credit - GoogleImages

The discovery revolutionized our understanding of how nearly everything on the planet works.

Credit - GoogleImages

She helped create an important map of the ocean floor.

Credit - GoogleImages

The map led Tharp to realize that the ocean floor could help prove the scientific theory of continental drift or the idea that the continents are moving.

Credit - GoogleImages