Happy birthday to #geologist & oceanographic #cartographer Marie Tharp (1920-2006), whose pioneering, thorough & complete ocean floor maps with Bruce Heezen, made using realms of echo sounder data, revealed the Mid-Atlantic Ridge.
After studying #geology & math, Maurice ‘Doc’ Ewing at Lamont-Doherty Earth Observatory at Columbia hired her to draft 1000s of echo sounder profiles. 🧵1/5
https://minouette.etsy.com/listing/217247292
#sciart #printmaking #womenInSTEM #histsci #linocut