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Englacial deformation can disturb the conformity and continuity of IRHs and lead to a non-monotonically increasing age distribution with depth, which is a challenge for ice-core analysis11. Folds in the GrIS and Antarctic ice sheet range from centimetre-scale folding observed in ice cores12,13,...
The age of the charcoal residue collected from the interior of the ceramic sherd, AD 1097, indicates a Pueblo II period ice melting activity. The in-situ discovery of the sherd, its position in relation to the top of the ice deposit, and the presence of charcoal residue coating its ...
First, workers sprayed a rectangular segment of sea with polyurethane foam. The foam solidified as it touched water, its trapped air bubbles ensuring buoyancy. Next, additives hardened the upper surface. The result was a nice patch of synthetic ice, serrated edges ready to fuse with another pat...