Potassium-argon and lead-alpha ages of plutonic rocks, Bokan Mountain area, Alaska
Science
By: M. A. Lanphere, E.M. MacKevett Jr., and T. W. Stern
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Abstract
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.
Suggested Citation
Lanphere, M.A., MacKevett, E., and Stern, T.W., 1964, Potassium-argon and lead-alpha ages of plutonic rocks, Bokan Mountain area, Alaska: Science, v. 145, no. 3633, p. 705-707, https://doi.org/10.1126/science.145.3633.705.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Potassium-argon and lead-alpha ages of plutonic rocks, Bokan Mountain area, Alaska |
| Series title | Science |
| DOI | 10.1126/science.145.3633.705 |
| Volume | 145 |
| Issue | 3633 |
| Year Published | 1964 |
| Language | English |
| Publisher | American Association for the Advancement of Science |
| Description | 3 p. |
| First page | 705 |
| Last page | 707 |
| Country | United States |
| State | Alaska |
| Other Geospatial | Bokan Mountain |