Absolute age of disseminated uraninite in Wheeler Basin, Grand County, Colorado
Journal of Research of the U.S. Geological Survey
By: K.R. Ludwig and E. J. Young
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Abstract
Uranium and lead isotopic analyses of monazlte and uraninite from the disseminated uraninite occurrence at Wheeler Basin, Grand County, Colo., indicate that these minerals formed 1,446±20 m.y. ago. This time correlates well with intrusion of the Silver Plume Granite. The uraninite and monazite were also affected by a later disturbance at 880±130 m.y., but show essentially no effects of subsequent events. This secondary disturbance may have been due to intrusion of dikes related to the Pikes Peak batholith, dated at 1,041±13 m.y. ago.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Absolute age of disseminated uraninite in Wheeler Basin, Grand County, Colorado |
| Series title | Journal of Research of the U.S. Geological Survey |
| Volume | 3 |
| Issue | 6 |
| Year Published | 1975 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Contributing office(s) | Denver Federal Center |
| Description | 5 p. |
| First page | 747 |
| Last page | 751 |
| Country | United States |
| State | Colorado |
| County | Grand County |
| Other Geospatial | Wheeler basin |