Statements (29)
Predicate | Object |
---|---|
gptkbp:instanceOf |
geological formation
|
gptkbp:age |
gptkb:Ordovician
|
gptkbp:country |
gptkb:United_States
|
gptkbp:depositionalEnvironment |
shallow marine
|
gptkbp:exposedBy |
gptkb:Arkansas
gptkb:Illinois gptkb:Iowa gptkb:Minnesota gptkb:Missouri gptkb:Oklahoma gptkb:Wisconsin |
gptkbp:firstDescribed |
1847
|
gptkbp:fossil |
rare
|
https://www.w3.org/2000/01/rdf-schema#label |
St. Peter Sandstone
|
gptkbp:lithology |
gptkb:stone
|
gptkbp:namedFor |
gptkb:St._Peter,_Minnesota
|
gptkbp:notableFor |
high purity silica sand
|
gptkbp:overlies |
gptkb:Prairie_du_Chien_Group
|
gptkbp:primaryLithology |
quartz sandstone
|
gptkbp:region |
gptkb:Midwestern_United_States
gptkb:Great_Lakes_region |
gptkbp:thickness |
up to 150 feet
|
gptkbp:underlies |
gptkb:Glenwood_Shale
gptkb:Platteville_Limestone |
gptkbp:usedFor |
glassmaking
hydraulic fracturing foundry sand |
gptkbp:bfsParent |
gptkb:Starved_Rock
|
gptkbp:bfsLayer |
7
|