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Isotopic ages of rocks in the northern Front Range, Colorado

April 3, 2006

These maps, and the tables that accompany them, are a compilation of isotopic age determinations of rocks and minerals in four 1:100,000 quadrangles in the northern and central Front Range, Colorado. Phanerozoic (primarily Tertiary and Cretaceous) age data are shown on one map; Proterozoic data are on the other. A sample location map is included for ease of matching specific localities and data in the tables to the maps. Several records in the tables were not included in the maps because either there were ambiguous dates or lack of location precluded accurate plotting.

Citation Information

Publication Year 2006
Title Isotopic ages of rocks in the northern Front Range, Colorado
DOI 10.3133/ofr20061051
Authors Anna B. Wilson, Bruce Bryant
Publication Type Report
Publication Subtype USGS Numbered Series
Series Title Open-File Report
Series Number 2006-1051
Index ID ofr20061051
Record Source USGS Publications Warehouse
USGS Organization