Correlation of early Cretaceous blueschists in Washington, Oregon and northern California
Tectonics
By: E. H. Brown and M.C. Blake Jr.
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Abstract
The protolith and metamorphic histories of Early Cretaceous blueschists that occur in Washington, Oregon, and California are remarkably similar. These blueschists are the Shuksan metamorphic suite of northwestern Washington, the Condrey Mountain schist of northern California and southern Oregon, and the Pickett Peak terrane of northern California and southwestern Oregon. We suggest that these bodies were coextensive during their formation. Dispersion of the blueschists occurred in Late Cretaceous time by lateral translation of up to 900 km along the continental margin in response to oblique plate convergence.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Correlation of early Cretaceous blueschists in Washington, Oregon and northern California |
| Series title | Tectonics |
| DOI | 10.1029/TC006i006p00795 |
| Volume | 6 |
| Issue | 6 |
| Publication Date | July 26, 2010 |
| Year Published | 1987 |
| Language | English |
| Publisher | American Geophysical Union |
| Contributing office(s) | Geology, Minerals, Energy, and Geophysics Science Center |
| Description | 12 p. |
| First page | 795 |
| Last page | 806 |
| Country | United States |
| State | California, Oregon, Washington |