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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. IUGS logo The International Union of Geological Sciences (IUGS) is an international non-governmental organization devoted to international cooperation in the field of geology. ...
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." Beaver Falls is a city located in Beaver County, Pennsylvania. ...
Capital Harrisburg Largest city Philadelphia Area Ranked 33rd - Total 46,055 sq mi (119,283 km²) - Width 280 miles (455 km) - Length 160 miles (255 km) - % water 2. ...
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. See: graphonomics The roundness or sharpness of handwriting patterns is caused by the phase of the horizontal and vertical pen-tip movements. ...
Sphericity is a measure of how spherical an object is. ...
Particle size, also called grain size, refers to the diameter of individual grains of sediment, or the lithified particles in clastic rocks. ...
Particle size, also called grain size, refers to the diameter of individual grains of sediment, or the lithified particles in clastic rocks. ...
Particle size, also called grain size, refers to the diameter of individual grains of sediment, or the lithified particles in clastic rocks. ...
Awards 1977, awarded the William H. Twenhofel Medal by the Society for Sedimentary Geology The William H. Twenhofel Medal is the highest award given by the Society for Sedimentary Geology (SEPM). ...
The Society for Sedimentary Geology is an international not-for-profit, scientific society based in Tulsa, Oklahoma. ...
Notable publications W. C. Krumbein and F. J. Pettijohn, Manual of sedimentary petrography, New York, Appleton-Century, 1938
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
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