This is a poster presentation given at the GSA Cordilleran Conference (Session T5: Critical Zone: Where Rock Meets Water and Life at Earth’s Surface) in Fresno CA on May 21, 2013

Summary: This presentation is a summary of collaborative research by a consortium of geoscientists and geotechnical consultants dealing with the factors causing expansive behavior of the problematic Early Tertiary smectitic sediments referenced in the California Geological Survey’s Geologic Hazard Notice for Smectite Sediments.  This Early Tertiary smectitic sedimentary unit is  characterized in two other GSA Conference slide presentations.

Poster Presentation   view here

Accompanying presentation narrative   view here