San Juan Basin
E706135
The San Juan Basin is a geologic structural basin in the Four Corners region of the southwestern United States, known for its rich oil, natural gas, and coalbed methane resources.
All labels observed (1)
| Label | Occurrences |
|---|---|
| San Juan Basin canonical | 5 |
How this entity was disambiguated
This entity first appeared as the object of triple T8025781 — 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: San Juan Basin Context triple: [Farmington, New Mexico, isPartOf, San Juan Basin]
-
A.
Albuquerque Basin
The Albuquerque Basin is a major structural and sedimentary basin in central New Mexico that forms part of the Rio Grande Rift and hosts much of the Albuquerque metropolitan area.
-
B.
Tucson Basin
Tucson Basin is a broad desert valley in southern Arizona that encompasses the city of Tucson and is surrounded by several prominent mountain ranges.
-
C.
Upper Rio Grande Basin
The Upper Rio Grande Basin is a major headwaters region of the Rio Grande that encompasses high-elevation valleys and watersheds in southern Colorado and northern New Mexico, providing critical water resources for agriculture, ecosystems, and downstream communities.
-
D.
Espanola Basin
The Española Basin is a major sedimentary and structural basin in northern New Mexico that forms part of the Rio Grande Rift and hosts significant groundwater and geologic resources.
-
E.
Socorro Basin
Socorro Basin is a geologic depression in central New Mexico that forms part of the Rio Grande Rift and hosts significant sedimentary deposits and geothermal activity.
- 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: San Juan Basin Target entity description: The San Juan Basin is a geologic structural basin in the Four Corners region of the southwestern United States, known for its rich oil, natural gas, and coalbed methane resources.
-
A.
Albuquerque Basin
The Albuquerque Basin is a major structural and sedimentary basin in central New Mexico that forms part of the Rio Grande Rift and hosts much of the Albuquerque metropolitan area.
-
B.
Tucson Basin
Tucson Basin is a broad desert valley in southern Arizona that encompasses the city of Tucson and is surrounded by several prominent mountain ranges.
-
C.
Upper Rio Grande Basin
The Upper Rio Grande Basin is a major headwaters region of the Rio Grande that encompasses high-elevation valleys and watersheds in southern Colorado and northern New Mexico, providing critical water resources for agriculture, ecosystems, and downstream communities.
-
D.
Espanola Basin
The Española Basin is a major sedimentary and structural basin in northern New Mexico that forms part of the Rio Grande Rift and hosts significant groundwater and geologic resources.
-
E.
Socorro Basin
Socorro Basin is a geologic depression in central New Mexico that forms part of the Rio Grande Rift and hosts significant sedimentary deposits and geothermal activity.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf | geologic structural basin ⓘ |
| basinType | asymmetric structural basin ⓘ |
| boundedBy |
Navajo uplift
NERFINISHED
ⓘ
San Juan Mountains NERFINISHED ⓘ Uncompahgre uplift NERFINISHED ⓘ Zuni uplift NERFINISHED ⓘ |
| containsField | San Juan Basin coalbed methane field NERFINISHED ⓘ |
| containsFormation |
Dakota Sandstone
NERFINISHED
ⓘ
Fruitland Formation NERFINISHED ⓘ Mancos Shale NERFINISHED ⓘ Mesa Verde Group NERFINISHED ⓘ Nacimiento Formation NERFINISHED ⓘ Ojo Alamo Sandstone NERFINISHED ⓘ Pictured Cliffs Sandstone NERFINISHED ⓘ |
| containsRockUnits |
Cretaceous formations
ⓘ
Jurassic formations ⓘ Paleogene formations ⓘ Triassic formations ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| deformationStyle | Laramide foreland basin ⓘ |
| economicImportance | major energy-producing region ⓘ |
| extendsInto |
northeastern Arizona
ⓘ
southeastern Utah ⓘ |
| formedDuring | Laramide orogeny NERFINISHED ⓘ |
| geologicAge |
Cenozoic
NERFINISHED
ⓘ
Mesozoic NERFINISHED ⓘ |
| hydrocarbonType |
coalbed methane
ⓘ
conventional gas ⓘ oil ⓘ |
| knownFor |
coal resources
ⓘ
coalbed methane resources ⓘ natural gas resources ⓘ oil resources ⓘ |
| locatedIn |
Four Corners region
NERFINISHED
ⓘ
northwestern New Mexico ⓘ southwestern Colorado NERFINISHED ⓘ southwestern United States NERFINISHED ⓘ |
| majorHydrocarbonPlay | yes ⓘ |
| namedAfter | San Juan River NERFINISHED ⓘ |
| partOf | Colorado Plateau NERFINISHED ⓘ |
| primaryCoalBearingFormation | Fruitland Formation NERFINISHED ⓘ |
| resourceExtraction |
coal mining
ⓘ
coalbed methane production ⓘ natural gas production ⓘ oil production ⓘ |
| state |
Arizona
ⓘ
Colorado ⓘ New Mexico ⓘ Utah ⓘ |
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: San Juan Basin Description of subject: The San Juan Basin is a geologic structural basin in the Four Corners region of the southwestern United States, known for its rich oil, natural gas, and coalbed methane resources.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Farmington, New Mexico