Glaciers Notes - Glaciers Snow accumulation is function of...

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Glaciers Snow accumulation is function of annual solar radiation, which is a function of latitude. Poles receive less solar energy due to angle of Sun’s rays with Earth. Glaciers: Where are they? Land-Based Ice Anartica – 94% Greenland – 6% All Others - <1% i-clicker Continential Glaciers form when: Summers are especially cold [because melting usually occurs in summer but if it’s cold, itw on’t melt] Snow Flake A snow flake is – Naturally occurring Inorganic solid (ice) Definite chemical composition (water) Regular crystal structure (hexagonal) The ice crystal we call snow is a mineral Snow field – sedimentary rock Ice on a pond igneous rock Glacial ice – metamorphic rock Accumulation and Ablation Zone of Accumulation – most of snow accumulate occurs at top of glacier Accumulation = Ablation [snow/ice being removed] Then glacier is stable Ice buildup spreads under its own weight = Ice Sheet, or Continental Glacier (like Himalayas) Glaciers move over flat land
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This note was uploaded on 02/15/2012 for the course GEOLOGY 460:103 taught by Professor Feigenson during the Fall '10 term at Rutgers.

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Glaciers Notes - Glaciers Snow accumulation is function of...

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