Hermit Formation
E591906
The Hermit Formation is a Permian-age red siltstone and mudstone rock unit prominently exposed in the Grand Canyon region of Arizona, known for its soft, easily eroded slopes beneath the cliffs of the overlying Supai Group.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Hermit Formation canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T6435047 — 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: Hermit Formation Context triple: [Supai Group, underlies, Hermit Formation]
-
A.
El Elegante crater
El Elegante crater is a large, nearly circular maar volcanic crater in the Pinacate volcanic field of northwestern Mexico, noted for its dramatic rim and desert landscape.
-
B.
Los Gemelos craters
Los Gemelos craters are a pair of large volcanic sinkholes in the highlands of Santa Cruz Island in the Galápagos, known for their lush Scalesia forest and birdwatching opportunities.
-
C.
صخور الروشة
صخور الروشة هي تشكيلات صخرية بحرية شهيرة تقع قبالة شاطئ الروشة في بيروت وتُعد من أبرز المعالم الطبيعية والسياحية في لبنان.
-
D.
Crater
Crater is a historic district and port area in the city of Aden, Yemen, known for its location within an ancient volcanic crater and its role as a commercial and administrative center.
-
E.
Sharpless crater
Sharpless crater is a prominent impact feature on Mars’s moon Phobos, notable in studies of the moon’s heavily cratered surface and geological history.
- 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: Hermit Formation Target entity description: The Hermit Formation is a Permian-age red siltstone and mudstone rock unit prominently exposed in the Grand Canyon region of Arizona, known for its soft, easily eroded slopes beneath the cliffs of the overlying Supai Group.
-
A.
El Elegante crater
El Elegante crater is a large, nearly circular maar volcanic crater in the Pinacate volcanic field of northwestern Mexico, noted for its dramatic rim and desert landscape.
-
B.
Los Gemelos craters
Los Gemelos craters are a pair of large volcanic sinkholes in the highlands of Santa Cruz Island in the Galápagos, known for their lush Scalesia forest and birdwatching opportunities.
-
C.
صخور الروشة
صخور الروشة هي تشكيلات صخرية بحرية شهيرة تقع قبالة شاطئ الروشة في بيروت وتُعد من أبرز المعالم الطبيعية والسياحية في لبنان.
-
D.
Crater
Crater is a historic district and port area in the city of Aden, Yemen, known for its location within an ancient volcanic crater and its role as a commercial and administrative center.
-
E.
Sharpless crater
Sharpless crater is a prominent impact feature on Mars’s moon Phobos, notable in studies of the moon’s heavily cratered surface and geological history.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf |
geologic formation
ⓘ
stratigraphic unit ⓘ |
| color | red ⓘ |
| contains |
fine-grained clastic rocks
ⓘ
laminated siltstone ⓘ mudstone ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| depositionalEnvironment |
continental
ⓘ
floodplain ⓘ fluvial ⓘ |
| erosionalCharacteristic | easily eroded ⓘ |
| exposedIn | Grand Canyon National Park ⓘ |
| forms | soft slopes ⓘ |
| fossilContent |
plant fossils
ⓘ
trace fossils ⓘ |
| geologicAge | Permian ⓘ |
| geologicPeriod | Permian ⓘ |
| geologicProvince | Colorado Plateau ⓘ |
| lithology |
mudstone
ⓘ
siltstone ⓘ |
| locatedIn |
Arizona
ⓘ
United States ⓘ
linked to:
United States of America
|
| namedFor | Hermit Basin ⓘ |
| overlainBy | Supai Group ⓘ |
| partOf | Grand Canyon stratigraphy ⓘ |
| primaryLocation |
Grand Canyon
ⓘ
linked to:
Grand Canyon National Park
|
| region |
Southwestern United States
ⓘ
linked to:
southwestern United States
|
| stratigraphicPosition | below Supai Group cliffs ⓘ |
| underlainBy | Esplanade Sandstone ⓘ |
| underlies | Supai Group ⓘ |
| weatheringStyle | slope-forming ⓘ |
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: Hermit Formation Description of subject: The Hermit Formation is a Permian-age red siltstone and mudstone rock unit prominently exposed in the Grand Canyon region of Arizona, known for its soft, easily eroded slopes beneath the cliffs of the overlying Supai Group.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.