Northgrippian

E87430

The Northgrippian is the middle age of the Holocene epoch, defined by a significant global cooling event that occurred around 4,200 years ago.

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All labels observed (2)

Label Occurrences
Northgrippian canonical 4
Northgrippian age 1

Statements (41)

Predicate Object
instanceOf chronostratigraphic stage
geochronologic age
chronologicalContext follows early Holocene warming
precedes late Holocene Meghalayan age
climateCharacteristic cooler and drier conditions in many regions
increased aridity in subtropical regions
climateProxyEvidence Greenland ice cores
lake sediment records
marine sediment cores
speleothem records
definedBy International Commission on Stratigraphy
International Union of Geological Sciences
definingEvent 4.2 kiloyear event
abrupt climate change
significant global cooling event
duration from 4.2 ka BP to 4.2–3.2 ka BP boundary with Meghalayan
endTime 4200 years before present to 4200–3200 years before present boundary
circa 2250–1950 BCE boundary to Meghalayan
follows Greenlandian
formalizedIn 2018
GSSP North Greenland Ice Core Project (NGRIP) ice core
surface form: NorthGRIP ice core, Greenland
GSSPApprovalYear 2018
hasApproximateStart 4.2 ka BP is 1950 CE minus 4200 years
namedAfter North Greenland Ice Core Project (NGRIP) ice core
surface form: NorthGRIP ice core
partOf Holocene
surface form: Holocene epoch
positionInHolocene middle age of the Holocene
precedes Meghalayan
rank age
stage
relatedEvent collapse or stress of several early complex societies
hydrological changes in monsoon regions
startTime 4200 years before present
circa 2250 BCE
stratotype North Greenland Ice Core Project (NGRIP) ice core
surface form: NorthGRIP ice core in central Greenland
subdivisionOf Cenozoic
surface form: Cenozoic era

Phanerozoic Eon
surface form: Phanerozoic eon

Quaternary period
timeScale International Chronostratigraphic Chart
usedIn Holocene subdivision
Quaternary period
surface form: Quaternary stratigraphy

paleoclimate studies

Referenced by (5)

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

Holocene hasStage Northgrippian
Greenlandian precedes Northgrippian
Greenlandian togetherWith Northgrippian
Meghalayan follows Northgrippian
Meghalayan precededBy Northgrippian
this entity surface form: Northgrippian age