| Port Orford Formation | |
|---|---|
| Type | Formation |
| Underlies | Elk River Formation |
| Overlies | Empire Formation |
| Lithology | |
| Primary | Sand, Conglomerate |
| Location | |
| Region | Oregon |
| Country | United States |
The Port Orford Formation is a geologic formation in Oregon. It preserves fossils. It consists of beds lying unconformably between the Empire Formation and overlying terrace deposits. The formation is composed of a basal bed of buff (yellow-brown) sand, overlain by a layer of conglomerate, and layer of rusty sand grading upward into blue-gray argillaceous sand, which is then truncated by the sea, on top of which are the Elk River Beds. The name was proposed by Ewart M. Baldwin in 1945.
See also
References
- ^ "USGS Geologic Names Committee Archives: Port Orford Formation". National Geologic Map Database. United States Geologic Survey.
- Baldwin, Ewart M (1945). "Some Revisions Of The Late Cenozoic Stratigraphy Of The Southern Oregon Coast". Journal of Geology. 53 (1): 35 – via Internet Archive.
Bibliography
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
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