Properties (11)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
geological formation
|
| gptkbp:age |
Middle Ordovician
|
| gptkbp:composedOf |
shale
|
| gptkbp:contains |
fossils
|
| https://www.w3.org/2000/01/rdf-schema#label |
Decorah Shale
|
| gptkbp:locatedIn |
gptkb:Iowa
|
| gptkbp:namedAfter |
gptkb:Decorah,_Iowa
|
| gptkbp:operates_in |
gptkb:Platteville_Formation
gptkb:Cedar_Valley_Formation |
| gptkbp:partOf |
Upper_Mississippi_Valley_region
|
| gptkbp:resolution |
up to 200 feet
|