Reginald Aldworth Daly

Reginald Aldworth Daly (March 18, 1871 – September 19, 1957) was a Canadian geologist. He was a professor at Harvard University from 1912 until 1942, after working as a field geologist for the Canadian International Boundary Commission.

He examined the rocks along a 400 miles stretch at the 49th parallel, which led him to formulate a theory of the origins of igneous rocks, and published his seminal work Igneous Rocks and Their Origin in 1914. According to Bill Bryson's "A Short History of Nearly Everything," he was an early proponent of both Arthur Holmes' Continental drift theory and the impact theory of lunar creation.

Daly was awarded the Penrose Medal in 1935, the Wollaston Medal in 1942^[1] and the William Bowie Medal in 1946. Craters on Mars and the Moon are named in his honor, and his Cambridge house (the Reginald A. Daly House) is now a National Historic Landmark.

References

Bibliography

• Daly, R A (1935), "Densities of Rocks Calculated from Their Chemical Analyses.", Proc. Natl. Acad. Sci. U.S.A. 21 (12): 657–63, 1935 Dec, doi:10.1073/pnas.21.12.657, PMID 16588027 
• Daly (1933), "THE DEPTHS OF THE EARTH.", Science 77 (1987): 95–102, 1933 Jan 27, doi:10.1126/science.77.1987.95, PMID 17797838 
• Daly (1931), "GARDINER ON CORAL REEFS.", Science 74 (1927): 566–567, 1931 Dec 4, doi:10.1126/science.74.1927.566, PMID 17807633 
• Daly, R A (1920), "A General Sinking of Sea-Level in Recent Time.", Proc. Natl. Acad. Sci. U.S.A. 6 (5): 246–50, 1920 May, doi:10.1073/pnas.6.5.246, PMID 16586806 
• Daly, R A (1917), "Low-Temperature Formation of Alkaline Feldspars in Limestones.", Proc. Natl. Acad. Sci. U.S.A. 3 (11): 659–65, 1917 Nov, doi:10.1073/pnas.3.11.659, PMID 16576265 
• Daly, R A (1916), "A New Test of the Subsidence Theory of Coral Reefs.", Proc. Natl. Acad. Sci. U.S.A. 2 (12): 664–70, 1916 Dec, doi:10.1073/pnas.2.12.664, PMID 16586654 
• Daly (1901), "NOTES ON OCEANOGRAPHY.", Science 13 (337): 951–954, 1901 Jun 14, doi:10.1126/science.13.337.951, PMID 17733661 
• Daly (1901), "SCIENTIFIC EXPEDITION TO ICELAND, GREENLAND AND LABRADOR.", Science 13 (318): 192, 1901 Feb 1, doi:10.1126/science.13.318.192, PMID 17816318 

External links

• Robert M. Hazen: Reginald Aldworth Daly (1871-1957). Daly′s Biography, American Geophysical Union
• James H. Natland: Reginald Aldworth Daly (1871–1957): Eclectic Theoretician of the Earth. GSA Today, vol. 16, no. 2, 2006

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