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Terrestrial meteorite ages indicate that some ice at the Allan Hills blue ice area (AH BIA) may be as old as 2.2Ma. As such, ice from the AH BIA could potentially be used to extend the ice core record of paleoclimate beyond 800ka. We collected samples from 5 to 10cm depth along a 5km transect through the main icefield and drilled a 225m ice core (S27) at the midpoint of the transect to develop the...
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