Geosciences 443Sedimentary Petrology

September 1, 2010

Miocene basal Six Mile Crk Fm, Coberly Gulch

White Sands Natl. Mon, NM

K turbidites, Baja

Sedimentary textures

Textural considerations:

• The phi scale, devised by Krumbein,• is computed by the following equation:

1) Grain size2) Grain shape3) Degree of sorting

(2-(phi)) = mm

Sediment sorting

Jurassic Navajo ss

Camb Vaughn ss

Sphericity

Rounding

Modern gravel beach, Baja

Strandline debris, Great Salt Lake

ClastOrientation