Marie's Ocean: Marie Tharp Maps the Mountains Under the Sea
A mixed-format picture book biography of Marie Tharp, theremarkable woman who mapped the ocean floor.Marie Tharp earned a graduate degree in geology in the 1940s, ata time when scientific careers were largely unavailable to women.Marie’s vision and tenacity paved the way for her to become one ofthe greatest oceanographic cartographers of the 20th century. Shewas the first person to map the ocean floor and discover the 40,000mile long Mid-Ocean Ridge and Rift Valley. Her astounding discoverysupported the theory of continental drift, which led to the theoryof plate tectonics. But it was not an easy road, and Mariestruggled to receive the credit she deserved for her discovery.From Marie Tharp’s early childhood dreams all the way to herdefining achievement, Josie James's Marie's Ocean is the story ofone of earth science’s greatest hidden figures.