Halka taught at universities and passed her knowledge on to her students .
Halka Chronic ( February 26 , 1923 -- April 16 , 2013 ) was a geologist that traveled and wrote books about the geology of different states .
Halka Chronic taught at universities and passed her knowledge on to her students .
Halka Chronic ( February 26 , 1923 -- April 16 , 2013 ) was a geologist that traveled and wrote books about the geology of different states .