Bowen Formation (original) (raw)
The Bowen Formation is an Ordovician-age geological formation in the Appalachian region of the eastern United States. It occupies a thin stratigraphic range between the Wardell and formations in some areas of southwest Virginia and northeast Tennessee. It is particularly well-exposed in Tazewell County, Virginia. Unlike its encompassing strata, the Bowen Formation is mostly calcareous sandstone and mudrock rather than limestone. The thicker upper part of the formation is composed of layered red mudrock which is replete with mudcracks. The thinner lower part, which is not always preserved, is a coarser unit of dark grey stratified sandstone which weathers to a rusty-brown color. Fossils are rare, restricted to stromatolites and Tetradium fibratum (a coral-like colonial organism).
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dbo:abstract | The Bowen Formation is an Ordovician-age geological formation in the Appalachian region of the eastern United States. It occupies a thin stratigraphic range between the Wardell and formations in some areas of southwest Virginia and northeast Tennessee. It is particularly well-exposed in Tazewell County, Virginia. Unlike its encompassing strata, the Bowen Formation is mostly calcareous sandstone and mudrock rather than limestone. The thicker upper part of the formation is composed of layered red mudrock which is replete with mudcracks. The thinner lower part, which is not always preserved, is a coarser unit of dark grey stratified sandstone which weathers to a rusty-brown color. Fossils are rare, restricted to stromatolites and Tetradium fibratum (a coral-like colonial organism). The Bowen Formation was probably formed by a small lobe of a delta flowing northeast onto the carbonate platforms of the area. Mudcracks indicate that the sediments were partially exposed to the air. Shortly after deposition of the Witten Formation, similar conditions would return in force with the thick coastal red beds of the Moccasin Formation. (en) |
dbo:wikiPageExternalLink | http://www.fossilworks.org/cgi-bin/bridge.pl%3Faction=home%7Caccess-date= |
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dbo:wikiPageLength | 4407 (xsd:nonNegativeInteger) |
dbo:wikiPageRevisionID | 1096182659 (xsd:integer) |
dbo:wikiPageWikiLink | dbr:List_of_fossiliferous_stratigraphic_units_in_Virginia dbr:Red_beds dbc:Ordovician_southern_paleotemperate_deposits dbr:Virginia dbr:Limestone dbr:Coral dbr:Moccasin_Formation dbr:Appalachia dbr:Calcareous dbr:Stromatolite dbr:Wardell_Formation dbr:Late_Ordovician dbr:Carbonate_platform dbr:River_delta dbr:Formation_(geology) dbc:Ordovician_geology_of_Virginia dbr:Tennessee dbr:Tazewell_County,_Virginia dbr:Ordovician dbr:Sandstone dbr:Shale dbr:Formation_(stratigraphy) dbr:Mudcrack dbr:Mudrock dbr:Paleontology_in_Virginia dbr:Witten_Formation |
dbp:age | dbr:Late_Ordovician |
dbp:name | Bowen Formation (en) |
dbp:namedby | Cooper & Prouty, 1943 (en) |
dbp:namedfor | Bowen Cove, Tazewell County (en) |
dbp:otherlithology | dbr:Limestone dbr:Shale |
dbp:overlies | dbr:Wardell_Formation |
dbp:period | Late Ordovician (en) |
dbp:prilithology | dbr:Sandstone dbr:Mudrock |
dbp:type | dbr:Formation_(stratigraphy) |
dbp:underlies | dbr:Witten_Formation |
dbp:wikiPageUsesTemplate | dbt:Infobox_rockunit dbt:Cite_web dbt:Flag dbt:Portal dbt:Reflist dbt:Chronostratigraphy_of_Virginia dbt:Virginia-geologic-formation-stub |
dcterms:subject | dbc:Ordovician_southern_paleotemperate_deposits dbc:Ordovician_geology_of_Virginia |
gold:hypernym | dbr:Formation |
rdf:type | dbo:MilitaryUnit |
rdfs:comment | The Bowen Formation is an Ordovician-age geological formation in the Appalachian region of the eastern United States. It occupies a thin stratigraphic range between the Wardell and formations in some areas of southwest Virginia and northeast Tennessee. It is particularly well-exposed in Tazewell County, Virginia. Unlike its encompassing strata, the Bowen Formation is mostly calcareous sandstone and mudrock rather than limestone. The thicker upper part of the formation is composed of layered red mudrock which is replete with mudcracks. The thinner lower part, which is not always preserved, is a coarser unit of dark grey stratified sandstone which weathers to a rusty-brown color. Fossils are rare, restricted to stromatolites and Tetradium fibratum (a coral-like colonial organism). (en) |
rdfs:label | Bowen Formation (en) |
owl:sameAs | freebase:Bowen Formation yago-res:Bowen Formation wikidata:Bowen Formation https://global.dbpedia.org/id/iUjD |
prov:wasDerivedFrom | wikipedia-en:Bowen_Formation?oldid=1096182659&ns=0 |
foaf:isPrimaryTopicOf | wikipedia-en:Bowen_Formation |
is dbo:wikiPageWikiLink of | dbr:List_of_fossiliferous_stratigraphic_units_in_Virginia |
is foaf:primaryTopic of | wikipedia-en:Bowen_Formation |