Statements (22)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
coal seam
|
| gptkbp:alsoKnownAs |
No. 8 Coal
|
| gptkbp:contains |
bituminous coal
|
| gptkbp:discoveredIn |
1760s
|
| gptkbp:hasResource |
bituminous coal
|
| gptkbp:historicalSignificance |
major source of coal for steel industry
|
| https://www.w3.org/2000/01/rdf-schema#label |
Pittsburgh coal seam
|
| gptkbp:largestCoalSeamIn |
gptkb:Appalachian_Basin
|
| gptkbp:locatedIn |
gptkb:Maryland
gptkb:Ohio gptkb:Pennsylvania gptkb:United_States gptkb:West_Virginia gptkb:Appalachian_Basin |
| gptkbp:miningStarted |
late 18th century
|
| gptkbp:namedAfter |
gptkb:Pittsburgh
|
| gptkbp:stratigraphicUnitOf |
gptkb:Pennsylvanian_period
|
| gptkbp:thickness |
up to 13 feet
|
| gptkbp:usedFor |
electric power generation
coke production |
| gptkbp:bfsParent |
gptkb:Appalachian_coal_fields
|
| gptkbp:bfsLayer |
7
|