Tulare Formation

{{Short description|Geologic formation in central California, US}}

{{Infobox rockunit

| name = Tulare Formation

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| type = Formation

| age = Neogene & Quaternary

| period = Holocene

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| region = San Joaquin Valley, California

| country = United States

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| underlies = (is topmost formation)

| overlies = San Joaquin Formation

| thickness = up to {{convert|4000|ft|m}}

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The Tulare Formation ({{IPAc-en|audio=En-us-tulare.ogg|t|ʊ|ˈ|l|ɛər|i}}) is a Pliocene to Holocene epoch geologic formation in the central and southern San Joaquin Valley of central California.[https://pubs.er.usgs.gov/publication/wri834000 USGS.gov: "Geology of the Tulare Formation and other continental deposits, Kettleman City area, San Joaquin Valley, California, with a section on ground-water management considerations and use of texture maps"]; Water-Resources Investigations Report 83-4000; by R.W. Page; 1983.[http://pubs.usgs.gov/pp/pp1713/22/pp1713_ch22.pdf USGS.gov: "Neogene Gas Total Petroleum System—Neogene Nonassociated Gas Assessment Unit of the San Joaquin Basin Province"]; Chapter 22 of the Petroleum Systems and Geologic Assessment of Oil and Gas in the San Joaquin Basin Province, California; by Allegra Hosford Scheirer and Leslie B. Magoon.

Geology

It overlies the San Joaquin Formation, and can be up to {{convert|4000|ft|m}} thick.

Its sediments consist mainly of unconsolidated deposits of clay, silt, sand, and gravel.

=Fossils=

Many freshwater fossils are preserved in the formation, dating back to the Neogene and Quaternary Periods of the Cenozoic Era.{{cite web|title= Fossilworks: Gateway to the Paleobiology Database|author= ((Various Contributors to the Paleobiology Database))|url= https://www.fossilworks.org|access-date= 17 December 2021|df= }} They include the largest fossil assemblage of clams and snails known on the Pacific Coast.

See also

{{Portal|Earth sciences|California|Paleontology}}

References