Cambrian Sixtymile Formation of Grand Canyon yields new findings
from University of New Mexico via Phys.org
The Grand Canyon is one of the supreme geologic laboratories on Earth and, after about 140 years of geologic investigation, one might think that its secrets have been mostly resolved. This is especially true of the flat-lying layered rocks that are so visible from both rims within Grand Canyon National Park. Nearly five decades ago, in the late 1970s, was the last time a new formation was discovered and defined in the Grand Canyon with the discovery of the Surprise Canyon Formation.
7701 Las Colinas Blvd., Ste. 800, Irving, TX 75063