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Escala Granulométrica Tabla Tamaño De Grano Gauge Wentworth
There are many granulometric scales in use, but the Udden-Wentworth scale (commonly known as the Wentworth scale) is the most widely used in geology.
This Scale was adopted internationally for the granulometric classification of sedimentary particles. It was proposed in 1922 by CK Wentworth, based on the previous scale of JA Udden, of 1898. Part of 1 mm and, dividing or multiplying by 2, in decreasing or increasing sense of size respectively, the limits of diameter of each class are defined , from clay-sized particles (with a diameter less than 1/256 mm) to blocks (with a diameter greater than 256 mm).
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image Featured Descripción
Metric analysis of sediment is commonly known as particle size analysis. Grain size is a fundamental property of sediment, being widely used to describe different sedimentary facies and classify sedimentary environments (Shepard, 1954) since it plays a main role in the transport and deposition of granular material.
In this context, the grain size provides important aspects of the origin of the sediment, its historical transport and the sedimentation conditions (Folk and Ward, 1957; Friedman, 1979; Bui et al., 1990; USACE, 2002; Gómez -Pina et al., 2006). Currently, the techniques used in the determination of grain size include direct measurement, dry and / or wet sieving, sedimentation, and measurement by laser, X-rays, and the Coulter counter (Blott and Pye, 2001 ).
Información Técnica
In geology, this granulometric analysis makes it possible to differentiate different classes of materials regardless of their chemical nature. The following table shows this classification.
Wentworth