Carmel Formation
E593377
The Carmel Formation is a Middle Jurassic geologic unit of the western United States, characterized by marine and marginal-marine sediments that record a transition from desert dune environments to shallow seas.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Carmel Formation canonical | 5 |
How this entity was disambiguated
This entity first appeared as the object of triple T6434967 — 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: Carmel Formation Context triple: [Navajo Sandstone, underlies, Carmel Formation]
-
A.
Claron Formation
The Claron Formation is a geologic rock unit of colorful limestones and mudstones best known for forming the striking hoodoos and cliffs of Bryce Canyon and other parts of the Paunsaugunt Plateau in southern Utah.
-
B.
Calvert Formation
The Calvert Formation is a geologic formation along the Chesapeake Bay in Maryland, renowned for its Miocene-age marine sediments and abundant fossil beds exposed in the Calvert Cliffs.
-
C.
Summerville Formation
The Summerville Formation is a Late Jurassic sedimentary rock unit in the western United States, characterized by thin-bedded mudstones and sandstones deposited in tidal flat and coastal environments.
-
D.
Vermejo Formation
The Vermejo Formation is a Late Cretaceous sedimentary rock unit in the Raton Basin of the western United States, known for its coal-bearing strata and significance in regional stratigraphy.
-
E.
Cloverly Formation
The Cloverly Formation is an Early Cretaceous geologic formation in the western United States known for its dinosaur fossils and fluvial sedimentary deposits.
- 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: Carmel Formation Target entity description: The Carmel Formation is a Middle Jurassic geologic unit of the western United States, characterized by marine and marginal-marine sediments that record a transition from desert dune environments to shallow seas.
-
A.
Claron Formation
The Claron Formation is a geologic rock unit of colorful limestones and mudstones best known for forming the striking hoodoos and cliffs of Bryce Canyon and other parts of the Paunsaugunt Plateau in southern Utah.
-
B.
Calvert Formation
The Calvert Formation is a geologic formation along the Chesapeake Bay in Maryland, renowned for its Miocene-age marine sediments and abundant fossil beds exposed in the Calvert Cliffs.
-
C.
Summerville Formation
The Summerville Formation is a Late Jurassic sedimentary rock unit in the western United States, characterized by thin-bedded mudstones and sandstones deposited in tidal flat and coastal environments.
-
D.
Vermejo Formation
The Vermejo Formation is a Late Cretaceous sedimentary rock unit in the Raton Basin of the western United States, known for its coal-bearing strata and significance in regional stratigraphy.
-
E.
Cloverly Formation
The Cloverly Formation is an Early Cretaceous geologic formation in the western United States known for its dinosaur fossils and fluvial sedimentary deposits.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
geologic formation
ⓘ
stratigraphic unit ⓘ |
| age | approximately 170–165 million years old ⓘ |
| associatedWith | San Rafael Swell outcrops ⓘ |
| color |
commonly reddish-brown
ⓘ
gray ⓘ |
| contains |
evaporite beds
ⓘ
interbedded carbonates and clastics ⓘ |
| containsFossilsOf |
ammonites
ⓘ
bivalves ⓘ gastropods ⓘ marine invertebrates ⓘ trace fossils ⓘ |
| containsSedimentaryStructures |
bioturbation
ⓘ
hummocky cross-stratification ⓘ mud cracks ⓘ ripple cross-lamination ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| depositionalSetting | epeiric sea on the North American craton ⓘ |
| environmentOfDeposition |
marginal-marine
ⓘ
marine ⓘ shallow marine shelf ⓘ tidal flat ⓘ |
| exposedIn |
Arizona
ⓘ
Colorado ⓘ New Mexico ⓘ Utah ⓘ |
| geologicPeriod | Middle Jurassic ⓘ |
| lithology |
gypsum
ⓘ
limestone ⓘ mudstone ⓘ sandstone ⓘ shale ⓘ siltstone ⓘ |
| locatedInRegion | western United States ⓘ |
| namedFor |
Carmel Junction, Utah
ⓘ
linked to:
Mount Carmel Junction, Utah
|
| overlies | Navajo Sandstone ⓘ |
| paleogeography | records encroachment of the Sundance Sea or related seaways ⓘ |
| partOf | San Rafael Group ⓘ |
| recordsTransitionFrom | eolian desert dunes ⓘ |
| recordsTransitionTo | shallow marine seas ⓘ |
| significance | records transition from arid continental to marine conditions in the Colorado Plateau region ⓘ |
| stratigraphicRelationships |
conformable on Navajo Sandstone in many areas
ⓘ
locally disconformable contacts with adjacent units ⓘ |
| tectonicSetting | western margin of the North American craton ⓘ |
| thickness | varies laterally ⓘ |
| underlies | Entrada Sandstone ⓘ |
| usedFor | regional stratigraphic correlation in the Colorado Plateau ⓘ |
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: Carmel Formation Description of subject: The Carmel Formation is a Middle Jurassic geologic unit of the western United States, characterized by marine and marginal-marine sediments that record a transition from desert dune environments to shallow seas.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.