| 词条 | Langston Formation |
| 释义 |
| name = Langston Formation | image = | caption = | type = Formation | age = Cambrian | period = Cambrian | prilithology = | otherlithology = | namedfor = Langston Creek | namedby = Charles Doolittle Walcott | region = Idaho, Utah | country = United States | coordinates = | unitof = | subunits = | underlies = Ute Formation | overlies = Brigham Formation | thickness = 30 - 498' | extent = | area = | map = | map_caption = }} The Langston Formation is a geologic formation in Idaho and Utah. It preserves fossils dating back to the Cambrian period. The formation is composed of bluish-gray limestone,[1] weathering to a buff color, often with rounded edges.[2] Blacksmith Fork is the type locality, and includes more fossils than the Idaho sections. The Langton Formation includes the fossilerous Spence Shale. Geology{{Empty section|date=January 2016}}See also{{Portal|Earth sciences|Idaho|Paleontology|Cambrian|Paleozoic}}
References1. ^Walcott, Charles. [https://en.wikisource.org/wiki/Cambrian_Geology_and_Paleontology/Volume_1/Nomenclature_of_Some_Cambrian_Cordilleran_Formations Nomenclature of Some Cambrian Cordilleran formations]. Cambrian Geology and Paleontology, I. Smithsonian Miscellaneous Collections, 53:1–12, pg. 8 2. ^Mansfield, George Rogers. [https://books.google.com/books?id=937lAAAAMAAJ Geography, Geology, and Mineral Resources of Part of Southeastern Idaho]. U.S. Government Printing Office, 1927, p. 53.
3 : Cambrian Idaho|Cambrian geology of Utah|Cambrian southern paleotropical deposits |
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