GEOL 3032 Chapter : Lec13 Ch10Ch11 TransportTexture
Document Summary
A: laminated silt rippled sand-silt laminated sand massive sand (grading) Sediment transport studies (cid:149) laboratory (e. g. , movies of bed and suspended loads) (cid:149) observational (cid:149) numeric modeling. 29. 5 e d u t i t a l. Introduction (cid:149) sediment texture: the features of sedimentary rocks that arise from the size, shape, and orientation of individual sediment grains. Grain size (cid:149) range from microscopic (um, 10-6 m) to meters (cid:149) we are interested in several aspects of grain size: Grain size scales (cid:149) udden-wentworth scale (cid:149) (cid:149) Further divided into sub- categories (cid:149) given by sieve size, millimeters, and phi units. Grain size scales (cid:149) phi scale -logarithmic scale (cid:149) grain size is expressed in units of equal value for the purpose of graphical plotting and statistical calculations. (cid:149) d is grain diameter in mm. log . 2 d d2 gravel sand clay, silt.
