词条 | Salt Lake Formation |
释义 |
| name = Salt Lake Formation | image = | caption = | type = Formation | age = Miocene-Pliocene | prilithology = | otherlithology = | namedfor = | namedby = | region = Idaho and Utah | country = United States | coordinates = | unitof = | subunits = | underlies = | overlies = | thickness = | extent = | area = | map = | map_caption = }} The Salt Lake Formation is a geologic formation exposed principally in Northern Utah and Southeast Idaho, with other small exposures in Southwest Wyoming and Northeast Nevada. Dates generally range from mid-Miocene to early Pliocene, with most dates falling between 10 Ma to 4 Ma, but perhaps starting as early as 15 Ma and extending to as late as 2 Ma in places. The primarily sedimentary record preserves lacustrine and alluvial fan environments, as well as a few tuffaceous expressions. Preserved fossils include Blancan fauna. See also{{Portal|Earth sciences|Idaho|Paleontology}}
References
1 : Neogene geology of Utah |
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