Great Valley Group
E440145
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.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Great Valley Group canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4434360 — 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: Great Valley Group Context triple: [Franciscan Complex, underlies, Great Valley Group]
-
A.
Wianamatta Group
The Wianamatta Group is a major geological rock sequence in the Sydney Basin of eastern Australia, consisting primarily of Triassic sedimentary formations that overlie the Hawkesbury Sandstone.
-
B.
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.
-
C.
Granite Range
Granite Range is a rugged mountain range in northwestern Nevada known for its stark desert peaks and proximity to the Black Rock Desert.
-
D.
Valley and Ridge Province
The Valley and Ridge Province is a long, folded belt of parallel ridges and valleys forming a distinctive geological and topographic region within the central and southern Appalachian Mountains.
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E.
Sierra Nevada–Great Valley block
The Sierra Nevada–Great Valley block is a major crustal block in California that encompasses the Sierra Nevada mountain range and the adjacent Great Valley, forming a distinct geologic province within the North American Plate.
- 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: Great Valley Group Target entity description: 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.
-
A.
Wianamatta Group
The Wianamatta Group is a major geological rock sequence in the Sydney Basin of eastern Australia, consisting primarily of Triassic sedimentary formations that overlie the Hawkesbury Sandstone.
-
B.
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.
-
C.
Granite Range
Granite Range is a rugged mountain range in northwestern Nevada known for its stark desert peaks and proximity to the Black Rock Desert.
-
D.
Valley and Ridge Province
The Valley and Ridge Province is a long, folded belt of parallel ridges and valleys forming a distinctive geological and topographic region within the central and southern Appalachian Mountains.
-
E.
Sierra Nevada–Great Valley block
The Sierra Nevada–Great Valley block is a major crustal block in California that encompasses the Sierra Nevada mountain range and the adjacent Great Valley, forming a distinct geologic province within the North American Plate.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
geologic group
ⓘ
sedimentary rock unit ⓘ stratigraphic unit ⓘ |
| associatedWith |
Franciscan subduction complex
NERFINISHED
ⓘ
Sierra Nevada magmatic arc NERFINISHED ⓘ |
| contains |
ammonite fossils
ⓘ
bivalve fossils ⓘ foraminifera fossils ⓘ marine fossils ⓘ plant fossils ⓘ terrestrial fossils ⓘ vertebrate fossils ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| environmentOfDeposition |
deep‑marine turbidite
ⓘ
deltaic ⓘ marine ⓘ nearshore marine ⓘ slope and basin ⓘ |
| geologicAge |
Cretaceous
NERFINISHED
ⓘ
Late Jurassic ⓘ Mesozoic ⓘ |
| hasSubunit | numerous named formations along the Great Valley ⓘ |
| lithology |
conglomerate
ⓘ
sandstone ⓘ shale ⓘ siltstone ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
Great Valley NERFINISHED ⓘ United States of America ⓘ
surface form:
United States
|
| overlies | Franciscan Complex NERFINISHED ⓘ |
| partOf |
California Coast Ranges geologic province
NERFINISHED
ⓘ
Great Valley Sequence NERFINISHED ⓘ |
| region | Central Valley of California NERFINISHED ⓘ |
| researchField |
paleontology
ⓘ
sedimentology ⓘ stratigraphy ⓘ tectonics ⓘ |
| significance | records subduction‑related forearc basin sedimentation along the Mesozoic continental margin of western North America ⓘ |
| tectonicSetting | forearc basin ⓘ |
| thickness | several kilometers ⓘ |
| underlies | Cenozoic sedimentary deposits of the Great Valley ⓘ |
| usedFor |
reconstructing Mesozoic paleogeography of California
ⓘ
regional stratigraphic correlation in California ⓘ |
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: Great Valley Group Description of subject: 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.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.