METHOD OF CALCULATING TRUE PARTICLE-SIZE DISTRIBUTIONS FROM OBSERVED SIZES IN A THIN-SECTION

Particle size distributions obtained from a thin section are usually a skewed version of the true distribution. A previous method for determ ining the parent distribution was questionable because negative partic le frequencies could be obtained. Here, we describe a method of determ ining parent distributions of spherical particles using a model with a djustable parameters. Our calculated distributions are somewhat broade r than the distributions obtained with previous methods, but the avera ge particle sizes are nearly identical. The newly developed model is a pplicable to any type of transmission microscopy.