Entries by Daphne Hanson

The montmorillonite clay

Would you expect a montmorillonite clay contaminated with brine in its pore fluid to have greater or less compressibility than an uncontaminated clay? (Hint: calculate the plasticity index of both soils) Please comment on the reproducibility of the Atterberg results. Can you think of any other way to test and classify the clay or to […]

The major mountain-building event

Orogeny is described as a major mountain-building event in which ancient rocks that formed deep in the crust fold and form mountain ranges. Several orogenic processes acted upon the North-American plate over the past 200 million years e.g. Cordilleran, Laramide, Sevier, etc. Laramide Orogeny particularly has contributed to the formation of several landforms and high […]