Researchers were easily able to distinguish these ice layers from the surrounding compacted snow in the cores, preserving a history of how much melt occurred back through time. (sciencedaily.com)
Locked in the ancient striations — each representing a winter's accumulation of compacted snow — is a unique natural record of climatic and atmospheric conditions from decades, centuries, even millenniums past. (dotearth.blogs.nytimes.com)
The team was able to distinguish the ice layers from the surrounding compacted snow in the cores to preserve a history of how much melt occurred through time. (rdmag.com)