Northgrippian
Second stage of the Holocene epoch / From Wikipedia, the free encyclopedia
In the geologic time scale, the Northgrippian is the middle one of three ages or stages of the Holocene Epoch or Series.[3][4][5][6] 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).[4] 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.[7]
Quick Facts Chronology, Etymology ...
Northgrippian | ||||||
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0.0082 – 0.0042 Ma | ||||||
Chronology | ||||||
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Etymology | ||||||
Name formality | Formal | |||||
Name ratified | 14 June 2018[1][2] | |||||
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 / 75.1000; -42.3200 | |||||
Lower GSSP ratified | 14 June 2018[1] | |||||
Upper boundary definition | 4.2 kiloyear event | |||||
Upper boundary GSSP | Mawmluh Cave, Meghalaya, India 25.2622°N 91.7150°E / 25.2622; 91.7150 | |||||
Upper GSSP ratified | 14 June 2018[1] |
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