Northgrippian

E87430

chronostratigraphic stage geochronologic age

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

Aliases (1)

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	NorthGRIP ice core, Greenland →
GSSPApprovalYear	2018 →
hasApproximateStart	4.2 ka BP is 1950 CE minus 4200 years →
namedAfter	NorthGRIP ice core →
partOf	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	NorthGRIP ice core in central Greenland →
subdivisionOf	Cenozoic era → Phanerozoic eon → Quaternary period →
timeScale	International Chronostratigraphic Chart →
usedIn	Holocene subdivision → Quaternary stratigraphy → paleoclimate studies →

Referenced by (5)

Subject (surface form when different)	Predicate
Meghalayan →	follows
Holocene →	hasStage
Meghalayan ("Northgrippian age") →	precededBy
Greenlandian →	precedes
Greenlandian →	togetherWith