| dbo:abstract |
The Jordan Formation (also classified as the Jordan Sandstone or the Jordan Member of the Trempealeau Formation) is a siliciclastic sedimentary rock unit identified in Illinois, Michigan, Wisconsin, Minnesota, and Iowa. Named for distinctive outcrops in the Minnesota River Valley near the town of Jordan, it extends throughout the Iowa Shelf and eastward over the Wisconsin Arch and Lincoln anticline into the Michigan Basin. Stratigraphically, the Jordan Formation is the uppermost unit of the type St. Croixan Series (historically, the uppermost subdivision of the Cambrian in North America). It is predominantly composed of mature, poorly cemented quartz sandstone, though several distinct facies have been identified on the basis of grain size, feldspathic content, and sedimentary structures. The Jordan is an important source of silica. Historically, the unit has been mined extensively for glass manufacturing, though recently it has been utilized as a source of frac sand. This porous, poorly cemented stratum is also an important aquifer and a major source of drinking water for people throughout the upper Midwest. (en) |
| dbo:thumbnail |
wiki-commons:Special:FilePath/JordanSSHoytPark.jpg?width=300 |
| dbo:wikiPageExternalLink |
http://wisconsingeologicalsurvey.org/ http://ngmdb.usgs.gov/Geolex/NewUnits/unit_2257.html https://web.archive.org/web/20140518003841/http:/wisconsingeologicalsurvey.org/pdfs/espdf/ES51.pdf |
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42784815 (xsd:integer) |
| dbo:wikiPageLength |
19357 (xsd:nonNegativeInteger) |
| dbo:wikiPageRevisionID |
994506237 (xsd:integer) |
| dbo:wikiPageWikiLink |
dbr:Cambrian dbc:Geologic_formations_of_the_United_States dbr:Potsdam_Sandstone dbc:Geology_of_Minnesota dbc:Geology_of_Michigan dbc:Geology_of_Wisconsin dbr:Aquifer dbc:Geology_of_Missouri dbr:Hydraulic_fracturing_proppants dbr:Jordan,_Minnesota dbc:Geology_of_Iowa dbr:Sedimentary_rock dbr:Conodont dbr:Geological_formation dbr:Eoconodontus dbr:Minnesota dbc:Cambrian_United_States dbr:Silica dbc:Fossiliferous_stratigraphic_units_of_the_United_States dbr:Michigan_Basin dbr:Trilobite dbr:Wisconsin dbr:Dolomite_(rock) dbr:Driftless_Area dbr:St._Peter_Sandstone dbc:Geology_of_Illinois dbc:Sandstone_formations_of_the_United_States dbr:Baraboo_Quartzite dbr:Nonesuch_Shale dbr:Iowa dbr:Illinois dbr:Michigan dbr:Ordovician dbr:Sandstone dbr:Oneota_Formation dbr:Siliciclastic dbr:St._Lawrence_Formation dbr:Trempealeau_Group dbr:Tellerina dbr:File:JordanOneota_MillersCurve.JPG dbr:File:MendotaStation_SWOutcrop2Reduced.jpg dbr:Saukia |
| dbp:age |
Late Cambrian (en) |
| dbp:caption |
Outcrop of the Jordan Sandstone at Hoyt Park, Madison, WI. The rock-hammer rests near the contact of the Van Oser Member and overlying Sunset Point Member. (en) |
| dbp:country |
United States (en) |
| dbp:extent |
Minnesota, Wisconsin, Illinois, Michigan, Iowa, Missouri (en) |
| dbp:name |
Jordan Formation (en) |
| dbp:namedby |
N. H. Winchell (en) |
| dbp:namedfor |
dbr:Jordan,_Minnesota |
| dbp:overlies |
St. Lawrence Formation of the Trempeleau Group (en) |
| dbp:period |
Cambrian (en) |
| dbp:prilithology |
dbr:Sandstone |
| dbp:region |
Iowa Shelf, Wisconsin Arch, Lincoln Anticline, Michigan Basin (en) |
| dbp:subunits |
Norwalk Member, Van Oser Member, Waukon Member, Sunset Point Member (en) |
| dbp:type |
dbr:Geological_formation |
| dbp:underlies |
Oneota Formation of the Prairie du Chien Group (en) |
| dbp:unitof |
dbr:Trempealeau_Group |
| dbp:wikiPageUsesTemplate |
dbt:Infobox_rockunit dbt:Chronostratigraphy_of_Wisconsin dbt:Convert dbt:Portal dbt:Reflist |
| dct:subject |
dbc:Geologic_formations_of_the_United_States dbc:Geology_of_Minnesota dbc:Geology_of_Michigan dbc:Geology_of_Wisconsin dbc:Geology_of_Missouri dbc:Geology_of_Iowa dbc:Cambrian_United_States dbc:Fossiliferous_stratigraphic_units_of_the_United_States dbc:Geology_of_Illinois dbc:Sandstone_formations_of_the_United_States |
| gold:hypernym |
dbr:Unit |
| rdf:type |
yago:WikicatSedimentaryRocks yago:Abstraction100002137 yago:Material114580897 yago:Matter100020827 yago:Part113809207 yago:PhysicalEntity100001930 yago:Relation100031921 dbo:Organisation yago:Rock114696793 yago:SedimentaryRock114698000 yago:Substance100019613 |
| rdfs:comment |
The Jordan Formation (also classified as the Jordan Sandstone or the Jordan Member of the Trempealeau Formation) is a siliciclastic sedimentary rock unit identified in Illinois, Michigan, Wisconsin, Minnesota, and Iowa. Named for distinctive outcrops in the Minnesota River Valley near the town of Jordan, it extends throughout the Iowa Shelf and eastward over the Wisconsin Arch and Lincoln anticline into the Michigan Basin. (en) |
| rdfs:label |
Jordan Formation (en) |
| owl:sameAs |
freebase:Jordan Formation yago-res:Jordan Formation wikidata:Jordan Formation https://global.dbpedia.org/id/fSde |
| prov:wasDerivedFrom |
wikipedia-en:Jordan_Formation?oldid=994506237&ns=0 |
| foaf:depiction |
wiki-commons:Special:FilePath/JordanOneota_MillersCurve.jpg wiki-commons:Special:FilePath/JordanSSHoytPark.jpg wiki-commons:Special:FilePath/MendotaStation_SWOutcrop2Reduced.jpg |
| foaf:isPrimaryTopicOf |
wikipedia-en:Jordan_Formation |
| is dbo:wikiPageWikiLink of |
dbr:List_of_sandstones dbr:McGregor,_Iowa |
| is foaf:primaryTopic of |
wikipedia-en:Jordan_Formation |
