Oligocene

Epoch of geologic time approximately 34 to 23 million years ago. https://doi.org/10.3133/fs20103059
Subtopics:
(none)

Results listed by similarity [list alphabetically]
Geochronology and geology of late Oligocene through Miocene volcanism and mineralization in the western San Juan mountains, Colorado

New age determinations with descriptions of sample locations and analytical details.

Info