[Ilmu Geologi] .
A. Destrital rock commonly have a variety of differentsize clasts. Sorting refers to the range of size present. rock with clasts that are nearly all the same size are considered "ell sorted". When sediments are "very poorly sorted, there is a wide range of different sizes. When a ock contains larger clast surrouded by much smaller ones, the mass of smaller clasts is often referred to as the matrix. .
B. Geologists describe a particle's shape in terms of its angularity (degree to which the clast's edges and corners are rounded) and sphericity (how cloes the shape of the clast is to a sphere). Transportation reduces the size and angularity of clasts but does not change their general shape. .
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