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30 Cards in this Set
- Front
- Back
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Katabatic Winds
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Cold mountain winds - the dense air flows from mountains to coasts.
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Insolation
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Incoming solar radiation that is heat recieved from the sun.
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Orographic Rainfall
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Rain produced as air is forced to rise over mountains. Cools condense and precipitates.
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Striations
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Scratch marks on a rock caused be abrasion.
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Chatter Marks`
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Discontinious scratch marks on a rock caused by abrasion.
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Roche Montonnee
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Rock that has been plucked and made smooth by glaciers.
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Divergent Flow
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Ice flow which goes round and objects rather than over it.
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Carbonation
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Form of weathering which calcuim carbonate reacts with acid water to form calcuim bicarbonate.
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Hydrolysis
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Chemical weathering process where water reacts with minerals such as feldspars to produce clay minerals.
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Till
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Sediment that is deposited by a glacier.
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Neve
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A transitional stage between snow and ice.
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Extrusion flow
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The movement of ice as a result of becoming to deep or heavy. It collapses and begins to flow outwards.
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Bergschrund
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A large crack or crevasse.
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Randkluft
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A gap between the rock face and ice in the hollow
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Pressure release
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A type of weathering in which rock is able to expand outward as a result of weight pressure.
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Spur
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A projection of land from a ridge or mountain.
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Truncated spurs
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Are those been eroded in the lower parts of the glacier.
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Ribbon Lakes
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Long linear lakes which fill a glaciated trough
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Hanging valleys
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A small U-shaped valley form by a small glacier that joins and hangs over a large U shaped valley
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Scree
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Angular sediment hat collects at the foot of a mountain range or cliff.
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Moraine
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Glacial deposits consisting of poorly sorted rock fragments.
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Isostatic Uplift
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The rising of land when the weight of a glacier has been removed.
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Col or Spillway
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A low point in a ridge or high ground often formed as a result of back to back cirques.
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Unstratified material
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Usally glacial deposited material which is unsorted
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Ablaition
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The removal of material from a glacier, such as. By melting and evaporation
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Moulins
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A circular sink hole in to a glacier caused by melt water entering a crevesse
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Varved clays
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A banded layer of silt and sand deposited in lakes near margins of ice sheets
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Springmelt
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Flooding that occurs in spring as a result of melting winter snow
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Perennials
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Plants living for several years
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Net primary productivity
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The rate of production of biomass that is avaiable for consumption by herbavoirs
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