Detrital zircon grains of an igneous rock as seen through an incident light microscope. Photo credit: Martin Lindner. From: Költringer Geology November 21, 2023 Case Study: detrital zircon [ED: On the occasion of releasing a new dataset: ON-004-04D Data tables of detrital zircon U-Pb geochronologic analyses and trace element concentrations of select Cretaceous, Paleogene, and Neogene rocks, Denver Basin and Northeastern Colorado (Data) – v20231110 that features data on 10 samples tested from a…
A uranium-rich zone in a sandstone of the Morrison Formation, Carnation Mine, San Miguel County, CO, January 2007. Photo credit: Chris Carroll (CGS). Energy, Minerals February 19, 2020 Colorado’s Uranium Deposits [Ed: this document, written in 2011 by Jim Burnell, Ph.D., P.G. (former Senior Minerals Geologist, Colorado Geological Survey), provides an excellent narrative on the sources of uranium deposits on the Western Slope of Colorado. However, it’s not the whole story—there is fascinating new science research implicating biological/organismic activity underground that…