Huronian glaciation

E226916

The Huronian glaciation was one of Earth's earliest and longest ice ages, occurring over 2.4 billion years ago and likely linked to the Great Oxidation Event and major climatic shifts.

All labels observed (3)

How this entity was disambiguated

Statements (50)

Predicate Object
instanceOf glaciation ⓘ
ice age ⓘ
paleoclimatic event ⓘ
associatedWith Great Oxidation Event ⓘ
massive climatic shifts ⓘ
possible global glaciation episodes ⓘ
rise of oxygenic photosynthesis ⓘ
causeHypothesis linked to changes in volcanic outgassing ⓘ
linked to continental growth and weathering ⓘ
linked to decline in atmospheric methane ⓘ
linked to increase in atmospheric oxygen ⓘ
linked to reduction in greenhouse effect ⓘ
linked to the Great Oxidation Event ⓘ
chronostratigraphicPosition after deposition of late Archean greenstone belts ⓘ
early Paleoproterozoic ⓘ
climaticImpact expansion of continental ice sheets ⓘ
long-term global cooling ⓘ
lowering of sea level ⓘ
possible snowball Earth conditions ⓘ
duration about 300 million years ⓘ
endTime approximately 2.1 billion years ago ⓘ
evidenceFoundIn Gowganda Formation ⓘ
Huronian Supergroup sedimentary rocks ⓘ
evidenceType dropstones ⓘ
glacial diamictites ⓘ
striated pavements ⓘ
varved sediments ⓘ
geologicalEon Paleoproterozoic Eon ⓘ
geologicalEra Paleoproterozoic Era ⓘ
hasUncertainty exact duration is uncertain ⓘ
global extent is debated ⓘ
number of distinct glacial pulses is debated ⓘ
location present-day Canadian Shield ⓘ
present-day Ontario, Canada ⓘ
namedAfter Huronian Supergroup ⓘ
Lake Huron ⓘ
partOf Paleoproterozoic glaciations ⓘ
relatedProcess drawdown of atmospheric CO2 ⓘ
enhanced silicate weathering ⓘ
oxidation of reduced gases in the atmosphere ⓘ
researchField Earth system science ⓘ
Precambrian geology ⓘ
paleoclimatology ⓘ
significance linked to long-term habitability changes ⓘ
major transition in Earth’s surface environment ⓘ
one of Earth’s earliest known ice ages ⓘ
one of Earth’s longest known ice ages ⓘ
startTime approximately 2.4 billion years ago ⓘ
temporalRelation followed the Archean Eon ⓘ
preceded later Proterozoic glaciations ⓘ

How these facts were elicited

Referenced by (5)

Full triples — surface form annotated when it differs from this entity's canonical label.

Paleoproterozoic Era → containsEvent → Huronian glaciation ⓘ
Rhyacian Period → hasMajorEvent → Huronian glaciation ⓘ
Rhyacian Period → hasMajorEvent → Makganyene glaciation ⓘ
linked to: Huronian glaciation
Gowganda Formation → partOf → Huronian glacial succession ⓘ
linked to: Huronian glaciation
Gowganda Formation → evidenceFor → Huronian glaciation ⓘ