| dbo:abstract |
The Stephen Formation is a geologic formation exposed in the Canadian Rockies of British Columbia and Alberta, on the western edge of the Western Canada Sedimentary Basin. It consists of shale, thin-bedded limestone, and siltstone that was deposited during Middle Cambrian time (513 to 497 million years ago). It is famous for the exceptional preservation of soft-bodied fossils: the Burgess Shale biota. The formation overlies the Cathedral escarpment, a submarine cliff; consequently it is divided into two quite separate parts, the 'thin' sequence deposited in the shallower waters atop the escarpment, and the 'thick' sequence deposited in the deeper waters beyond the cliff. Because the 'thick' Stephen Formation represents a distinct lithofacies, some authors suggest it warrants its own name, and dub it the Burgess Shale Formation. The stratigraphy of the Thin Stephen Formation has not been subject to extensive study, so except where explicitly mentioned this article applies mainly to the Thick Stephen Formation. (en) |
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wiki-commons:Special:FilePath/WalcottQuarry080509.jpg?width=300 |
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| dbo:wikiPageWikiLink |
dbr:Canadian_Rockies dbc:Cambrian_Alberta dbc:Cambrian_British_Columbia dbc:Cambrian_System_of_North_America dbr:Limestone dbr:Phyllopod_bed dbr:Geological_formation dbr:Eldon_Formation dbr:George_Stephen,_1st_Baron_Mount_Stephen dbr:Mount_Stephen dbr:Lagerstätte dbr:Cleavage_(geology) dbr:Middle_Cambrian dbr:British_Columbia dbc:Cambrian_northern_paleotropical_deposits dbr:Cathedral_Formation dbr:Walcott_Quarry dbr:Alberta dbr:Fossils_of_the_Burgess_Shale dbr:Formation_(geology) dbr:Siltstone dbc:Cambrian_southern_paleotropical_deposits dbr:Charles_Doolittle_Walcott dbr:Odaray_Mountain dbr:Ogygopsis dbr:Shale dbr:Western_Canadian_Sedimentary_Basin dbr:Mount_Stephen_trilobite_beds dbr:Cathedral_escarpment dbr:Oncoid dbr:File:Burgess_Shale,_Yoho_National_Park_of_Canada.jpg |
| dbp:caption |
The Walcott Quarry in the Stephen Formation shales (en) |
| dbp:name |
Stephen Formation (en) |
| dbp:namedby |
Charles Doolittle Walcott, 1908 (en) |
| dbp:namedfor |
Mount Stephen (en) |
| dbp:otherlithology |
dbr:Siltstone |
| dbp:overlies |
dbr:Cathedral_Formation |
| dbp:period |
Middle Cambrian (en) |
| dbp:prilithology |
dbr:Limestone dbr:Shale |
| dbp:region |
dbr:Canadian_Rockies |
| dbp:thickness |
"Thick" Stephen: up to (en) "Thin" Stephen: < (en) |
| dbp:type |
dbr:Geological_formation |
| dbp:underlies |
dbr:Eldon_Formation |
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dbt:Infobox_Rockunit dbt:Fotbs dbt:Convert dbt:Coord dbt:Flag dbt:Reflist dbt:Ma dbt:Western_Canadian_Sedimentary_Basin dbt:Burgess_Shale |
| dcterms:subject |
dbc:Cambrian_Alberta dbc:Cambrian_British_Columbia dbc:Cambrian_System_of_North_America dbc:Cambrian_northern_paleotropical_deposits dbc:Cambrian_southern_paleotropical_deposits |
| gold:hypernym |
dbr:Unit |
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51.46425 -116.32443 |
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| rdfs:comment |
The Stephen Formation is a geologic formation exposed in the Canadian Rockies of British Columbia and Alberta, on the western edge of the Western Canada Sedimentary Basin. It consists of shale, thin-bedded limestone, and siltstone that was deposited during Middle Cambrian time (513 to 497 million years ago). It is famous for the exceptional preservation of soft-bodied fossils: the Burgess Shale biota. The formation overlies the Cathedral escarpment, a submarine cliff; consequently it is divided into two quite separate parts, the 'thin' sequence deposited in the shallower waters atop the escarpment, and the 'thick' sequence deposited in the deeper waters beyond the cliff. Because the 'thick' Stephen Formation represents a distinct lithofacies, some authors suggest it warrants its own name, (en) |
| rdfs:label |
Stephen Formation (en) |
| owl:sameAs |
freebase:Stephen Formation yago-res:Stephen Formation wikidata:Stephen Formation https://global.dbpedia.org/id/4vVNS |
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POINT(-116.32443237305 51.464248657227) |
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51.464249 (xsd:float) |
| geo:long |
-116.324432 (xsd:float) |
| prov:wasDerivedFrom |
wikipedia-en:Stephen_Formation?oldid=1021763020&ns=0 |
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wiki-commons:Special:FilePath/Burgess_Shale,_Yoho_National_Park_of_Canada.jpg wiki-commons:Special:FilePath/WalcottQuarry080509.jpg |
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wikipedia-en:Stephen_Formation |
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| is dbp:overlies of |
dbr:Eldon_Formation |
| is dbp:underlies of |
dbr:Cathedral_Formation |
| is dbp:unitof of |
dbr:Burgess_Shale |
| is foaf:primaryTopic of |
wikipedia-en:Stephen_Formation |
