| 词条 | Santa Susana Formation |
| 释义 |
| name = Santa Susana Formation | image = | caption = | type = Formation | age = Late Paleocene-Early Eocene | period = Eocene | prilithology = Shale | otherlithology = Sandstone, conglomerate | namedfor = Santa Susana, California | namedby = | region = Los Angeles County and Ventura County, California | country = {{USA}} | coordinates = | unitof = | subunits = | underlies = Meganos Formation | overlies = Martinez Formation | thickness = {{convert|1000|-|1500|ft|m|abbr=on}} | extent = Simi Hills, Santa Susana Mountains | area = | map = | map_caption = }} The Santa Susana Formation is a Paleogene period geologic formation in the Simi Hills and western Santa Susana Mountains of southern California.[1][2][3] The formation consists largely of light-gray shale and some fine-grained shaly sandstone, with a lense of heavy conglomerates in the lower part.[1][4] It is from {{convert|1000|-|1500|ft|m}} thick.[1][4] Fossil contentThe Santa Susana Formation preserves fossils from the Late Paleocene to Early Eocene epochs in the Paleogene period of the Cenozoic Era.[4][5] Fossilized fauna in the Santa Susana Formation is entirely different from that of underlying Martinez Formation, and has very little in common with that of the overlying Meganos Formation.[1][3][6] See also{{Portal|Paleogene|Earth sciences|California|Paleontology|Prehistory of North America}}
References1. ^1 2 3 USGS.gov: Geolex - Santa Susana Formation; accessed 8.15.2015 2. ^"A summary of work in progress on the Tertiary and Quaternary of western North America"; Clark, B.L.; Pan-Pacific [2nd] Science Congress Proceedings, Australia, v. 1, p. 874-879 (1924); accessed 8.15.2015. 3. ^1 "A contribution to the paleontology of the Martinez Eocene of California"; Nelson, R. N.; University of California Publications in Geological Sciences v. 15, no. 11 (1925); [p. 397-466]; accessed 8.15.2015. 4. ^1 2 USGS.gov: "Preliminary geologic map of the Santa Susana quadrangle, Southern California"; R. F. Yerkes1 and R. H. Campbell; accessed 8.15.2015. 5. ^{{cite web|title= Fossilworks: Gateway to the Paleobiology Database|author= Various Contributors to the Paleobiology Database|url= http://www.fossilworks.org/|accessdate= 8 July 2014|deadurl= yes|archiveurl= https://web.archive.org/web/20140731140924/http://fossilworks.org/|archivedate= 31 July 2014|df= }} 6. ^"Checklist of California Tertiary marine Mollusca"; Keen, A.M., and Bentson, Herdis; Geological Society of America Special Paper, 56, 280 p. (1944); [Pg. 21 (fig. 4) shows age as [late] Paleocene through early Eocene]; accessed 8.15.2015. External links
16 : Geologic formations of California|Paleogene System of North America|Paleocene North America|Eocene Series of North America|Paleogene California|Conglomerate formations|Sandstone formations of the United States|Shale formations of the United States|Geology of Los Angeles County, California|Geology of Ventura County, California|Simi Hills|Santa Susana Mountains|Chatsworth, Los Angeles|Geography of Simi Valley, California|West Hills, Los Angeles|Paleontology in California |
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