Aaron Clement Waters (1905–1991) was an American geologist, petrologist, and volcanologist, known for his pioneering work on the Columbia River Basalt.
[1] Aaron C. Waters was born as the youngest of seven children of parents who were pioneers in Washington state and grew wheat at their homestead.
[3] After the attack on Pearl Harbor, the United States Geological Survey (USGS) expanded its search for strategic minerals.
Waters went on an extended leave of absence to serve in the USGS — the main focus of his work was on mercury deposits.
[1][4] In 1945 he returned to his professorial duties at Stanford and began to focus on basalts and other volcanic rocks of the Pacific Northwest.
Waters, in collaboration with James Gilluly and Alfred Woodford, wrote a textbook Principles of Geology, which was published by W. H. Freeman and Company in 1951.
[3] In 1983 Aaron and Elizabeth Waters settled in Tacoma, where he continued to write about geology and pursue his hobby of gardening.