Figure 2
From: An assessment of uranium in groundwater in the Grand Canyon region

Schematic of lithology in the Grand Canyon area related to breccia pipe uranium mining. Adapted from U.S. Geological Survey27.
From: An assessment of uranium in groundwater in the Grand Canyon region
Schematic of lithology in the Grand Canyon area related to breccia pipe uranium mining. Adapted from U.S. Geological Survey27.