Statherian Period
E229689
The Statherian Period is the final division of the Paleoproterozoic Era, marked by the stabilization of continental cratons and significant crustal growth roughly 1.8 to 1.6 billion years ago.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Statherian Period canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T2029562 — 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: Statherian Period Context triple: [Paleoproterozoic Era, containsSubdivision, Statherian Period]
-
A.
Rhyacian Period
The Rhyacian Period is a geologic time interval in the early Proterozoic characterized by significant crustal growth, widespread metamorphism, and some of the earliest known large-scale glaciations.
-
B.
Pridoli Epoch
The Pridoli Epoch is the final epoch of the Silurian Period, marking a transitional interval in Earth’s history just before the onset of the Devonian.
-
C.
Orosirian Period
The Orosirian Period is a division of early Earth's history marked by significant crustal stabilization, widespread orogeny, and major impact events roughly 2.05 to 1.8 billion years ago.
-
D.
Siderian Period
The Siderian Period is the earliest division of the Paleoproterozoic, marked by widespread banded iron formation deposition and the initial rise of atmospheric oxygen on Earth.
-
E.
Maastrichtian
The Maastrichtian is the final stage of the Late Cretaceous period, marking the last interval of non-avian dinosaur dominance before the mass extinction event 66 million years ago.
- 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: Statherian Period Target entity description: The Statherian Period is the final division of the Paleoproterozoic Era, marked by the stabilization of continental cratons and significant crustal growth roughly 1.8 to 1.6 billion years ago.
-
A.
Rhyacian Period
The Rhyacian Period is a geologic time interval in the early Proterozoic characterized by significant crustal growth, widespread metamorphism, and some of the earliest known large-scale glaciations.
-
B.
Pridoli Epoch
The Pridoli Epoch is the final epoch of the Silurian Period, marking a transitional interval in Earth’s history just before the onset of the Devonian.
-
C.
Orosirian Period
The Orosirian Period is a division of early Earth's history marked by significant crustal stabilization, widespread orogeny, and major impact events roughly 2.05 to 1.8 billion years ago.
-
D.
Siderian Period
The Siderian Period is the earliest division of the Paleoproterozoic, marked by widespread banded iron formation deposition and the initial rise of atmospheric oxygen on Earth.
-
E.
Maastrichtian
The Maastrichtian is the final stage of the Late Cretaceous period, marking the last interval of non-avian dinosaur dominance before the mass extinction event 66 million years ago.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
chronostratigraphic unit
ⓘ
geologic period ⓘ |
| associatedWith |
assembly and stabilization of large cratonic blocks
ⓘ
development of stable continental platforms ⓘ extensive granitoid magmatism ⓘ sedimentary basin development on stable cratons ⓘ |
| characterizedBy |
reduction in large-scale orogeny compared to earlier Paleoproterozoic
ⓘ
significant continental crustal growth ⓘ stabilization of continental cratons ⓘ tectonic stabilization ⓘ widespread cratonization ⓘ |
| chronologyType | absolute age–defined period ⓘ |
| continentStatus | large, coherent cratons present on Earth ⓘ |
| definedBy | Global Standard Stratigraphic Age (GSSA) ⓘ |
| earthHistoryPhase | early Proterozoic stabilization phase ⓘ |
| endBoundaryAgeMa | 1600 ⓘ |
| endTime | 1.6 billion years ago ⓘ |
| environmentalContext |
generally stable tectonic regimes
ⓘ
mature continental crust ⓘ |
| follows | Orosirian Period ⓘ |
| geologicEon | Proterozoic Eon ⓘ |
| geologicEra | Paleoproterozoic Era ⓘ |
| geologicRecord |
well preserved in shield areas such as Australian Shield
ⓘ
well preserved in shield areas such as Baltic Shield ⓘ Canadian Shield ⓘ
surface form:
well preserved in shield areas such as Canadian Shield
|
| globalChronostratigraphicScale | International Commission on Stratigraphy ⓘ |
| importance | marks transition from highly active early Proterozoic tectonics to more stable Mesoproterozoic conditions ⓘ |
| linkedProcess |
lithospheric stabilization
ⓘ
long-term crustal thickening and cooling ⓘ |
| namedAfter | Greek word "statheros" ⓘ |
| nameMeaning | stable ⓘ |
| partOf | Paleoproterozoic Era ⓘ |
| positionInEra | fourth and final period of the Paleoproterozoic ⓘ |
| positionInProterozoic | second period of the Proterozoic Eon ⓘ |
| precededBy | intense orogenic activity of the Orosirian Period ⓘ |
| precedes | Calymmian Period ⓘ |
| rank | period ⓘ |
| startBoundaryAgeMa | 1800 ⓘ |
| startTime | 1.8 billion years ago ⓘ |
| temporalRelation | immediately precedes the Mesoproterozoic Era in time ⓘ |
| timeSpan | 200 million years ⓘ |
| usedIn |
Precambrian Supereon
ⓘ
surface form:
Precambrian stratigraphy
geochronology ⓘ tectonic evolution studies of early Earth ⓘ |
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: Statherian Period Description of subject: The Statherian Period is the final division of the Paleoproterozoic Era, marked by the stabilization of continental cratons and significant crustal growth roughly 1.8 to 1.6 billion years ago.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.