Metamorphic facies map of southeastern Alaska: Distribution, facies, and ages of regionally metamorphosed rocks
Professional Paper
1497-D
Links
- Document: Report (pdf)
- Plates:
- NGMDB Index Page: National Geologic Map Database Index Page (html)
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Abstract
Nearly all of the bedrock in Southeastern Alaska has been metamorphosed, much of it under medium-grade conditions during metamorphic episodes that were associated with widespread plutonism. The oldest metamorphisms affected probable arc rocks near southern Prince of Wales Island and occurred during early and middle Paleozoic orogenies. The predominant period of metamorphism and associated plutonism occurred during Early Cretaceous to early Tertiary time and resulted in the development of the Coast plutonic-metamorphic complex that extends along the inboard half of Southeastern Alaska. Middle Tertiary regional thermal metamorphism affected a large part of Baranof Island.
Suggested Citation
Dusel-Bacon, C., Brew, D.A., Douglass, S.L., 1996, Metamorphic facies map of southeastern Alaska: Distribution, facies, and ages of regionally metamorphosed rocks: U.S. Geological Survey Professional Paper 1497, Report: 42 p.; 2 Plates: 31.50 x 37.00 inches and 26.00 x 37.00 inches, https://doi.org/10.3133/pp1497D.
ISSN: 2330-7102 (online)
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Metamorphic facies map of southeastern Alaska: Distribution, facies, and ages of regionally metamorphosed rocks |
| Series title | Professional Paper |
| Series number | 1497 |
| Chapter | D |
| DOI | 10.3133/pp1497D |
| Year Published | 1996 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Contributing office(s) | Geology, Minerals, Energy, and Geophysics Science Center |
| Description | Report: 42 p.; 2 Plates: 31.50 x 37.00 inches and 26.00 x 37.00 inches |
| Country | United States |
| State | Alaska |
| Other Geospatial | southeastern Alaska |