This core greatly extends the climatic record of the first core, and according to a first, preliminary dating, it reaches back 720,000 years. The ice of the second Valkyrie Dome core is therefore the second-oldest ice ever recovered, outranged only by the EPICA Dome C core.
This core significantly expands the climatic record of the first core, and according to an initial, preliminary dating, it extends back 720,000 years. The ice from the second Valkyrie Dome core is thus the second-oldest ice ever recovered, surpassed only by the EPICA Dome C core.