Why is a logarithmic plot used for representing diameter of the grain-size in grain-size analysis
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H.P.Dubey
Grain Size Analyses
Since particle diameters typically span many orders of magnitude for natural sediments, we must find a way to conveniently describe wide ranging data sets. The base two logarithmic f (phi) scale is one useful and commonly used way to represent grain size information for a sediment distribution. A tabular classification of grain sizes in terms of f units, millimeters, and other commonly used measurement scales is included for purposes of comparisonLogarithmic phi values (in base two) are calculated from particle diameter size measures in millimeters as follows:
where:
f = particle size in f units
d = diameter of particle in mm
H.P.Dubey
Grain Size Analyses
Since particle diameters typically span many orders of magnitude for natural sediments, we must find a way to conveniently describe wide ranging data sets. The base two logarithmic f (phi) scale is one useful and commonly used way to represent grain size information for a sediment distribution. A tabular classification of grain sizes in terms of f units, millimeters, and other commonly used measurement scales is included for purposes of comparisonLogarithmic phi values (in base two) are calculated from particle diameter size measures in millimeters as follows:
where:
f = particle size in f units
d = diameter of particle in mm
H.P.Dubey
Grain Size Analyses
Since particle diameters typically span many orders of magnitude for natural sediments, we must find a way to conveniently describe wide ranging data sets. The base two logarithmic f (phi) scale is one useful and commonly used way to represent grain size information for a sediment distribution. A tabular classification of grain sizes in terms of f units, millimeters, and other commonly used measurement scales is included for purposes of comparisonLogarithmic phi values (in base two) are calculated from particle diameter size measures in millimeters as follows:
where:
f = particle size in f units
d = diameter of particle in mm