Abstract by Lars Jordan
ORIGIN AND AGE OF URANIUM BEARING OPAL ON THE TRAVERSE MOUNTAINS
Biek (2005) noted that opaline rock was present in many localities in the Traverse Mountains. It was so prevalent that he coined the term “opalite” and included it in his map units. Scholarly studies on uranium-bearing opals show they form at low temperatures from hydrothermal alterations in tuffs or mineralized rhyolitic lavas. The uranium-bearing opal found on the Traverse Mountains is believed to have been deposited following the Traverse Mountain mega landslide from permeation of fluids through its fractured rock. This landslide occurred when the upper part of the Wasatch Mountains slid off and deposited itself, thus creating the Traverse Mountains. We are currently researching the opalite’s origin and its age to determine if these can tell us the age of the Traverse Mountain landslide.