The data include methane data from the Greenland Ice Sheet Project 2 (GISP2) B & D Cores. Gas ages were calculated according to the methods described in Brook et
al. 1996, and are subject to change. Ice ages were calculated by by
linear interpolation from the Meese et al. timescale.
Metadata update history
2003-05-14T14:00:00Z : Created : Made by transformation from DIF record
2023-05-23T14:00:00Z : Minor modification : Made by transformation from DIF record, type is hardcoded.