Geology

Created by: Blaze
Created on: 04-05-13 18:35

Pluton

The size of the crystals depends on the rate of cooling of the magma - slow cooling magma, intrusive, insulated from surface temperatures and in large masses.

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Granite

Pink & White feldspar, Grey quartz, mica

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Physical / Mechanical

Expansion & Contraction (Exfoliation), Freeze-thaw, Wetting and drying - by wetting of surface - expansion, and drying of surface contraction).

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Chemical

Acid rain (Carbonic acid - dissolves Limestone), Hydrolysis (breaks down feldspar & granite, clay, washed out, space in rock for water to enter & freeze - freeze thaw disintegrates rock into quartz & mica

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Biological

Burrowing anmials, plant roots (particularly large trees). Animals secrete. Chemical eg. limpets; humic acid

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Humus

Decaying animal matter & rain, attacks rocks below soil.

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Erosion

Agents: Glaciers, rivers, waves, wind

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Attrition

The particles in river colliding and made rounder and finer.

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Abrasion

Material in river wears away bed & banks.

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Rivers

Corrosion, Hydrolic action

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Glaciers

Plucking, abrasion, meltwater.

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Waves

(Same as rivers)

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Wind

Abrasion, Attrition, Deflation

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Other cards in this set

Card 2

Front

Granite

Back

Pink & White feldspar, Grey quartz, mica

Card 3

Front

Physical / Mechanical

Back

Card 4

Front

Chemical

Back

Card 5

Front

Biological

Back

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Geology