- GeoRef, Copyright 2008, American Geological Institute. Reference includes data from Bibliography and Index of North American Geology, U. S. Geological Survey, Reston, VA, United States
The Woods Hole Rapid Sediment Analyzer for sands is modified to be more rapid. Its modification, called a granulometer, can plot grain size distribution curves from 100 to 250 sand samples a day, that is 2500 to 6500 monthly or 30,000 to 75,000 a year. Sedimentation methods, owing to their technical improvements, represent a positive alternative to sieving for grain size analysis. They can offer a good source of data to be treated statistically by computer.