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.
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.
this entity surface form:
Northgrippian age