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Port Orford Formation

From Wikipedia, the free encyclopedia
Port Orford Formation
TypeFormation
UnderliesElk River Formation
OverliesEmpire Formation
Lithology
PrimarySand, Conglomerate
Location
RegionOregon
CountryUnited 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

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References

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  1. ^ a b c "USGS Geologic Names Committee Archives: Port Orford Formation". National Geologic Map Database. United States Geologic Survey.
  2. ^ 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

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