GEL 2 Lecture Notes - Lecture 11: Igneous Rock, Malaspina Glacier, Ross Ice Shelf
Document Summary
Hot springs: water is 6-9 c warmer than average air temperature. Geysers: intermittent hot springs/fountains; water turns to steam and erupts (e. g. old. Wells: holes bored into the zone of saturation. Can cause a drawdown (lowering) of water table or cone of depression (depression in water table) Artesian wells: water in well rises higher than initial groundwater level. Act as natural pipelines (moving water from remote areas of recharge to points of discharge) Glacier: a thick mass of ice that forms over land from the compaction and recrystallization of snow and shows evidence of past or present flow. They are part of both the water and rock cycle. Valley, or alpine glaciers: form in mountainous areas a glacier confined to a mountain valley which in most instances had been a stream. Ice sheets, or continental glaciers: a very large thich mass of glacial ice flwoing outward in all directions from 1 or more accumulation centers.
