Geology Books & lectures: Udden–Wentworth grain-size scale for sediments and the equivalent phi (ϕ) scale
![Figure F4. Udden-Wentworth grain size classification of terrigenous... | Download Scientific Diagram Figure F4. Udden-Wentworth grain size classification of terrigenous... | Download Scientific Diagram](https://www.researchgate.net/publication/314078206/figure/fig3/AS:466376352636930@1488204195743/Figure-F4-Udden-Wentworth-grain-size-classification-of-terrigenous-sediments-after.png)
Figure F4. Udden-Wentworth grain size classification of terrigenous... | Download Scientific Diagram
Geological Association of Duhok-G.A.D - Udden-Wentworth grain-size classification scheme (Wentworth, 1922) All rocks consist of tiny particles called grains that form the building material of rocks. In geology, grain size is measured
![Figure F3. Udden-Wentworth grain-size classification of terrigenous sediments (from Wentworth, 1922). Figure F3. Udden-Wentworth grain-size classification of terrigenous sediments (from Wentworth, 1922).](http://www-odp.tamu.edu/publications/194_IR/chap_02/images/02_f03.gif)