Potassium-argon and lead-alpha ages of plutonic rocks, Bokan Mountain area, Alaska
January 1, 1964
Most of the granitic rocks in the Bokan Mountain area, southeastern Alaska, are early Paleozoic (probably Ordovician) judged by potassium-argon and lead-alpha age measurements. The Bokan Mountain Granite, the youngest intrusive unit in the area, belongs to a Mesozoic plutonic episode. These age measurements are the first direct evidence for the emplacement of early Paleozoic granitic intrusive rocks close to the Pacific margin of North America.
Citation Information
| Publication Year | 1964 |
|---|---|
| Title | Potassium-argon and lead-alpha ages of plutonic rocks, Bokan Mountain area, Alaska |
| Authors | M. Lanphere, E.M. MacKevett, T. Stern |
| Publication Type | Article |
| Publication Subtype | Journal Article |
| Series Title | Science |
| Index ID | 70010833 |
| Record Source | USGS Publications Warehouse |