- GeoRef, Copyright 2006, American Geological Institute. Reference includes data from Bibliography and Index of North American Geology, U. S. Geological Survey, Reston, VA, United States
The determination of the form of grain size distribution functions in clastic sedimentary rocks involves a certain amount of subjective interpretation. The subjectivity can be minimized, though not eliminated, by various analytical and interpretive methods. If the object of studying a size distribution is the interpretation of sedimentary history, probably the best method consists of making approximate analyses of a large number of samples and comparing theoretical distributions with whatever data are capable of being tested.