William C. Krumbein
Encyclopedia
William Christian Krumbein (1902–1979) was a notable geologist, after whom the Krumbein Medal of the International Association for Mathematical Geology
(IAMG) was named. This medal was established at the 25th International Geological Congress
in Sydney, in 1976. Krumbein was a founding officer of the IAMG.
Krumbein was born at Beaver Falls
, Pennsylvania
, USA, in January, 1902, and died on August 18, 1979. At his memorial service, it was said of Krumbein "that by constitutionally rejecting conventional wisdom, he continually pursued innovative methods, whereby the natural phenomena of geology could be expressed with mathematical rigor."
The legacy left by Krumbein includes his 'Krumbein Scale', a system of measuring 'roundness
' or 'sphericity' of particles and the Krumbein phi (φ) scale, a logarithmic scale used for evaluating particle size that is a modification to the older Wentworth scale.
by the Society for Sedimentary Geology
W. C. Krumbein, Measurement and geological significance of shape and roundness of sedimentary particles. Journal of Sedimentary Research; August 1941; v. 11; no. 2; p. 64-72
W. C. Krumbein and L. L. Sloss, Stratigraphy and sedimentation, San Francisco, W. H. Freeman, 1963
W.C. Krumbein and F.A. Graybill, An introduction to statistical models in geology, New York, McGraw-Hill, 1965
Mathematical Geology
Mathematical Geosciences is a scientific journal, published by the International Association of Mathematical Geology. It is published semi-quarterly by Springer Science+Business Media and contains original papers in numerical mathematical geosciences...
(IAMG) was named. This medal was established at the 25th International Geological Congress
International Union of Geological Sciences
The International Union of Geological Sciences is an international non-governmental organization devoted to international cooperation in the field of geology.-About:...
in Sydney, in 1976. Krumbein was a founding officer of the IAMG.
Krumbein was born at Beaver Falls
Beaver Falls, Pennsylvania
Beaver Falls is a city in Beaver County, Pennsylvania, United States. The population was 8,987 at the 2010 census. It is located 31 miles northwest of Pittsburgh, and on the Beaver River, six miles from its confluence with the Ohio River...
, Pennsylvania
Pennsylvania
The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...
, USA, in January, 1902, and died on August 18, 1979. At his memorial service, it was said of Krumbein "that by constitutionally rejecting conventional wisdom, he continually pursued innovative methods, whereby the natural phenomena of geology could be expressed with mathematical rigor."
The legacy left by Krumbein includes his 'Krumbein Scale', a system of measuring 'roundness
Roundness
*Roundness — sharpness of handwriting patterns*Roundness — measure of sharpness of a particle's corners*Roundness — roundness of clastic particles...
' or 'sphericity' of particles and the Krumbein phi (φ) scale, a logarithmic scale used for evaluating particle size that is a modification to the older Wentworth scale.
Awards
1977, awarded the William H. Twenhofel MedalWilliam H. Twenhofel Medal
The William H. Twenhofel Medal is the highest award given by the Society for Sedimentary Geology . It is awarded annually to a person for his or her "Outstanding Contributions to Sedimentary Geology."...
by the Society for Sedimentary Geology
Society for Sedimentary Geology
The Society for Sedimentary Geology is an international not-for-profit, scientific society based in Tulsa, Oklahoma. It is commonly referred to by its acronym SEPM, which refers to its former name, the Society of Economic Paleontologists and Mineralogists.The Society’s reason for being is to...
Notable publications
W. C. Krumbein and F. J. Pettijohn, Manual of sedimentary petrography, New York, Appleton-Century, 1938W. C. Krumbein, Measurement and geological significance of shape and roundness of sedimentary particles. Journal of Sedimentary Research; August 1941; v. 11; no. 2; p. 64-72
W. C. Krumbein and L. L. Sloss, Stratigraphy and sedimentation, San Francisco, W. H. Freeman, 1963
W.C. Krumbein and F.A. Graybill, An introduction to statistical models in geology, New York, McGraw-Hill, 1965