Grand Staircase of sedimentary rock layers
E566676
The Grand Staircase of sedimentary rock layers is a vast, step-like sequence of colorful cliffs and plateaus in the American Southwest that preserves an exceptionally complete record of Mesozoic and Cenozoic geologic history.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Grand Staircase of sedimentary rock layers canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6082871 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Grand Staircase of sedimentary rock layers Context triple: [Grand Staircase–Escalante National Monument, geologicFeature, Grand Staircase of sedimentary rock layers]
-
A.
Entrada Sandstone
Entrada Sandstone is a Jurassic-age sedimentary rock formation in the U.S. Southwest, renowned for forming the dramatic natural arches and other erosional landforms seen in places like Arches National Park.
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B.
Kaibab Limestone
Kaibab Limestone is a prominent Permian-age sedimentary rock layer that forms the resistant caprock of the Grand Canyon and many other cliffs and plateaus across the Colorado Plateau.
-
C.
Bastei rock formations
The Bastei rock formations are a dramatic sandstone rock massif and popular viewpoint in Germany’s Saxon Switzerland National Park, overlooking the Elbe River and known for its iconic stone bridge and hiking trails.
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D.
Straight Cliffs Formation
The Straight Cliffs Formation is a prominent Late Cretaceous sedimentary rock unit in southern Utah, noted for its extensive cliff-forming sandstones and rich fossil record.
-
E.
Coconino Sandstone
Coconino Sandstone is a prominent Permian-age geological formation of well-sorted, cross-bedded sandstone best known from exposures in the Grand Canyon region of the southwestern United States.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Grand Staircase of sedimentary rock layers Target entity description: The Grand Staircase of sedimentary rock layers is a vast, step-like sequence of colorful cliffs and plateaus in the American Southwest that preserves an exceptionally complete record of Mesozoic and Cenozoic geologic history.
-
A.
Entrada Sandstone
Entrada Sandstone is a Jurassic-age sedimentary rock formation in the U.S. Southwest, renowned for forming the dramatic natural arches and other erosional landforms seen in places like Arches National Park.
-
B.
Kaibab Limestone
Kaibab Limestone is a prominent Permian-age sedimentary rock layer that forms the resistant caprock of the Grand Canyon and many other cliffs and plateaus across the Colorado Plateau.
-
C.
Bastei rock formations
The Bastei rock formations are a dramatic sandstone rock massif and popular viewpoint in Germany’s Saxon Switzerland National Park, overlooking the Elbe River and known for its iconic stone bridge and hiking trails.
-
D.
Straight Cliffs Formation
The Straight Cliffs Formation is a prominent Late Cretaceous sedimentary rock unit in southern Utah, noted for its extensive cliff-forming sandstones and rich fossil record.
-
E.
Coconino Sandstone
Coconino Sandstone is a prominent Permian-age geological formation of well-sorted, cross-bedded sandstone best known from exposures in the Grand Canyon region of the southwestern United States.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
geologic formation
ⓘ
sedimentary rock succession ⓘ stratigraphic sequence ⓘ |
| composedOf | sedimentary rock ⓘ |
| extendsFrom |
Grand Canyon region
ⓘ
linked to:
Grand Canyon National Park
|
| extendsTo |
Bryce Canyon region
ⓘ
linked to:
Bryce Canyon National Park
|
| formedBy |
deposition in desert (eolian) environments
ⓘ
deposition in fluvial environments ⓘ deposition in marine environments ⓘ |
| hasCharacteristic |
colorful rock layers
ⓘ
step-like sequence of cliffs and plateaus ⓘ |
| hasQuality | exceptionally complete stratigraphic record ⓘ |
| highestMajorStep | Pink Cliffs ⓘ |
| importantFor |
study of paleoenvironments
ⓘ
study of stratigraphy ⓘ study of tectonic history of the Colorado Plateau ⓘ |
| includes |
Bryce Canyon National Park area
ⓘ
linked to:
Bryce Canyon National Park
Grand Canyon National Park area ⓘ
linked to:
Grand Canyon National Park
Grand Staircase–Escalante National Monument area ⓘ
linked to:
Grand Staircase–Escalante National Monument
Zion National Park area ⓘ
linked to:
Zion National Park
|
| includesFormation |
Carmel Formation
ⓘ
Chinle Formation ⓘ Claron Formation ⓘ Entrada Sandstone ⓘ Kaibab Limestone ⓘ Kayenta Formation ⓘ Moenave Formation ⓘ Moenkopi Formation ⓘ Morrison Formation ⓘ Navajo Sandstone ⓘ Straight Cliffs Formation ⓘ Temple Cap Sandstone ⓘ |
| includesRockUnitsFrom |
Cenozoic era
ⓘ
linked to:
Cenozoic
Mesozoic era ⓘ
linked to:
Mesozoic Era
Paleozoic era (in Grand Canyon section) ⓘ |
| includesStep |
Chocolate Cliffs
ⓘ
Gray Cliffs ⓘ Pink Cliffs ⓘ Vermilion Cliffs ⓘ White Cliffs ⓘ |
| locatedIn |
American Southwest
ⓘ
linked to:
southwestern United States
Utah ⓘ |
| partOf | Colorado Plateau ⓘ |
| records |
Cenozoic geologic history
ⓘ
Mesozoic geologic history ⓘ |
| shapedBy |
erosion by rivers
ⓘ
uplift of Colorado Plateau ⓘ |
| stratigraphicallyOverlies | Precambrian basement rocks (in Grand Canyon) ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Grand Staircase of sedimentary rock layers Description of subject: The Grand Staircase of sedimentary rock layers is a vast, step-like sequence of colorful cliffs and plateaus in the American Southwest that preserves an exceptionally complete record of Mesozoic and Cenozoic geologic history.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
Grand Staircase–Escalante National Monument
→
geologicFeature
→
Grand Staircase of sedimentary rock layers
ⓘ