Statements (29)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
geographical region
unconformity |
| gptkbp:ageDifference |
up to 1.2 billion years
|
| gptkbp:firstDescribed |
gptkb:John_Wesley_Powell
1869 |
| gptkbp:hasViewOf |
gptkb:Mount_Rushmore
gptkb:Missouri_Ozarks gptkb:Black_Hills gptkb:Grand_Canyon gptkb:Pikes_Peak |
| https://www.w3.org/2000/01/rdf-schema#label |
Great Unconformity
|
| gptkbp:locatedIn |
gptkb:North_America
|
| gptkbp:notableExample |
gptkb:Rocky_Mountains
gptkb:Canadian_Shield gptkb:Grand_Canyon gptkb:Ozarks |
| gptkbp:relatedTo |
gptkb:Cambrian_explosion
gptkb:Snowball_Earth_hypothesis |
| gptkbp:separates |
Precambrian rocks
Cambrian rocks |
| gptkbp:significance |
evidence of erosion
major geological boundary marks missing geologic time |
| gptkbp:studiedIn |
geology
stratigraphy |
| gptkbp:type |
nonconformity
angular unconformity |
| gptkbp:bfsParent |
gptkb:Grand_Canyon_National_Park,_Arizona,_United_States
|
| gptkbp:bfsLayer |
6
|