Basic Concepts and Management Issues of Rivers - River Dynamics and Integrated River Management - page 11

particles that is finer than the given size is taken as the abscissa. Cumulative size distribution curves are
shown on a logarithmic-probability scale in Fig. 1.10.
(a)
(b)
(c)
Fig. 1.9 (a) Weathering of granite produces quartz, feldspar and mica particles in the upper reaches of the East River
in Guangdong in South China; (b) Weathering of metamorphic rocks in the Xiaojiang watershed produces various
particles from clay to boulders; (c) Weathering of limestone produces few granular particles in Dali in Yunnan (See
color figure at the end of this topic)