Glen Canyon Group
E593378
The Glen Canyon Group is a sequence of Early Jurassic sedimentary rock formations in the southwestern United States, notable for its extensive desert and fluvial deposits that record the transition from arid dune fields to river and lake environments.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Glen Canyon Group canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T6434991 — 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: Glen Canyon Group Context triple: [Kayenta Formation, partOf, Glen Canyon Group]
-
A.
Kayenta Formation
The Kayenta Formation is an Early Jurassic sandstone and siltstone rock unit on the Colorado Plateau, renowned for its distinctive red cliffs and important dinosaur fossil trackways.
-
B.
Chinle Formation
The Chinle Formation is a Late Triassic geologic formation in the southwestern United States, renowned for its colorful badlands, rich fossil beds, and extensive petrified wood deposits.
-
C.
Moenkopi Formation
The Moenkopi Formation is a widespread Triassic-age sedimentary rock unit of the southwestern United States, known for its reddish-brown mudstones and sandstones that record ancient river, tidal, and shallow marine environments.
-
D.
Sundance Formation
The Sundance Formation is a Middle to Late Jurassic marine sedimentary rock unit in the western United States, known for its shallow sea deposits that underlie the dinosaur-rich Morrison Formation.
-
E.
Great Valley Group
The Great Valley Group is a thick sequence of sedimentary rock formations in California’s Great Valley, notable for preserving extensive marine and terrestrial deposits from the Mesozoic era.
- 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: Glen Canyon Group Target entity description: The Glen Canyon Group is a sequence of Early Jurassic sedimentary rock formations in the southwestern United States, notable for its extensive desert and fluvial deposits that record the transition from arid dune fields to river and lake environments.
-
A.
Kayenta Formation
The Kayenta Formation is an Early Jurassic sandstone and siltstone rock unit on the Colorado Plateau, renowned for its distinctive red cliffs and important dinosaur fossil trackways.
-
B.
Chinle Formation
The Chinle Formation is a Late Triassic geologic formation in the southwestern United States, renowned for its colorful badlands, rich fossil beds, and extensive petrified wood deposits.
-
C.
Moenkopi Formation
The Moenkopi Formation is a widespread Triassic-age sedimentary rock unit of the southwestern United States, known for its reddish-brown mudstones and sandstones that record ancient river, tidal, and shallow marine environments.
-
D.
Sundance Formation
The Sundance Formation is a Middle to Late Jurassic marine sedimentary rock unit in the western United States, known for its shallow sea deposits that underlie the dinosaur-rich Morrison Formation.
-
E.
Great Valley Group
The Great Valley Group is a thick sequence of sedimentary rock formations in California’s Great Valley, notable for preserving extensive marine and terrestrial deposits from the Mesozoic era.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf | geologic group ⓘ |
| chronostratigraphicRange |
Hettangian
ⓘ
Pliensbachian NERFINISHED ⓘ Sinemurian ⓘ |
| containsDeposits |
eolian sandstone
ⓘ
fluvial deposits ⓘ lacustrine deposits ⓘ |
| containsFossils |
dinosaur tracks
ⓘ
vertebrate fossils ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| depositionalSetting | continental ⓘ |
| economicUse | aquifer ⓘ |
| environmentOfDeposition |
desert dune field
ⓘ
lake system ⓘ river system ⓘ |
| geologicAge | Early Jurassic ⓘ |
| geologicPeriod | Jurassic NERFINISHED ⓘ |
| grainSize | fine- to medium-grained sandstone ⓘ |
| hasColor |
reddish
ⓘ
tan ⓘ |
| includesFormation |
Kayenta Formation
NERFINISHED
ⓘ
Moenave Formation NERFINISHED ⓘ Navajo Sandstone NERFINISHED ⓘ Wingate Sandstone NERFINISHED ⓘ |
| lithology |
conglomerate
ⓘ
mudstone ⓘ sandstone ⓘ siltstone ⓘ |
| locatedIn | southwestern United States NERFINISHED ⓘ |
| namedFor | Glen Canyon NERFINISHED ⓘ |
| notableExposure |
Arches National Park
NERFINISHED
ⓘ
Canyonlands National Park NERFINISHED ⓘ Glen Canyon National Recreation Area NERFINISHED ⓘ Zion National Park NERFINISHED ⓘ |
| overlies | Chinle Formation NERFINISHED ⓘ |
| partOf | Colorado Plateau NERFINISHED ⓘ |
| porosity | high in sandstone units ⓘ |
| recordsTransition | arid dune fields to river and lake environments ⓘ |
| region |
Arizona
NERFINISHED
ⓘ
Colorado NERFINISHED ⓘ New Mexico NERFINISHED ⓘ Utah NERFINISHED ⓘ |
| researchSignificance | record of Early Jurassic paleoclimate on the Colorado Plateau ⓘ |
| stratigraphicThickness | hundreds of meters (approximate) ⓘ |
| tectonicSetting | passive continental interior basin ⓘ |
| underlies | San Rafael Group NERFINISHED ⓘ |
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: Glen Canyon Group Description of subject: The Glen Canyon Group is a sequence of Early Jurassic sedimentary rock formations in the southwestern United States, notable for its extensive desert and fluvial deposits that record the transition from arid dune fields to river and lake environments.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.