Archive: Nov 2023

The north face of Mount Lincoln (14,286 ft) rises over 3,000 ft above the Middle Fork of the South Platte. It is the highest summit of the Mosquito Range, and the eleventh-highest summit in the contiguous United States. Old mine roads zigzag across a nearby slope at the top of Park County. Photo credit: Larry Scott for the CGS.

Geology

November 30, 2023

2024 Colorado Geology Calendar

Following up on last year’s popular geological photo tour around the state, we’re proud to share this next collection from…

Detrital zircon grains of an igneous rock as seen through an incident light microscope. Photo credit: Martin Lindner. From: Költringer, Chiara. “Detrital Zircons: How the Age of a Resistant Mineral Can Help to Reconstruct the Climate of the Past.” Science. EGU Blogs: Climate: Past, Present & Future (blog), May 20, 2021.

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…