Northgrippian

Northgrippian
Northgrippian
Chronology
−12 — – −11 — – −10 — – −9 — – −8 — – −7 — – −6 — – −5 — – −4 — – −3 — – −2 — – −1 — – 0 —	Cenozoic Quaternary PC Holocene "Upper" Greenlandian Northgrippian Meghalayan
	Ages of the Holocene Epoch. ; Axis scale: thousands of years ago.;
Etymology
Name formality	Formal
Name ratified	14 June 2018
Usage information
Celestial body	Earth
Regional usage	Global (ICS)
Time scale(s) used	ICS Time Scale
Definition
Chronological unit	Age
Stratigraphic unit	Stage
Time span formality	Formal
Lower boundary definition	8.2 kiloyear event
Lower boundary GSSP	NGRIP1 ice core, Greenland; 75.1000°N 42.3200°W
Lower GSSP ratified	14 June 2018
Upper boundary definition	4.2 kiloyear event
Upper boundary GSSP	Mawmluh Cave, Meghalaya, India; 25.2622°N 91.7150°E
Upper GSSP ratified	14 June 2018

In the geologic time scale, the Northgrippian is the middle one of three ages or stages of the Holocene Epoch or Series. It was officially ratified by the International Commission on Stratigraphy in June 2018 along with the earlier Greenlandian and later Meghalayan ages/stages. The age takes its name from the North Greenland Ice Core Project (NorthGRIP). The age began 8,276 BP (6326 BCE or 3854 HE), near the 8.2-kiloyear event, and goes up to the start of the Meghalayan, which began 4,200 BP (2250 BCE or 7750 HE), near the 4.2-kiloyear event.

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