Concept information
Terme préférentiel
ice core
Définition
- A core sample that is typically removed from an ice sheet or a high mountain glacier. Since the ice forms from the incremental buildup of annual layers of snow, lower layers are older than upper, and an ice core contains ice formed over a range of years. Cores are drilled with hand augers (for shallow holes) or powered drills; they can reach depths of over two miles (3.2 km), and contain ice up to 800,000 years old. (Source: Wikipedia)
Concept générique
Traductions
-
français
URI
http://data.loterre.fr/ark:/67375/CHC-K6XVFB5V-H
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