Port Orford Formation
Appearance
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.[citation needed] It consists of beds lying unconformably between the Empire Formation and overlying terrace deposits.[1] 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.[1] The name was proposed by Ewart M. Baldwin in 1945.[2][1]
See also
References
- ^ a b c "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.