geology terminology

Jun 28th, 2015
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aa lava - Lava whose surface is covered with random masses of angular jagged blocks. ablation - As applied to glacier ice, process by which ice below snow line is wasted by evaporation and melting. abrasion - Erosion of rock material by friction of solid particles moved by gravity, water, ice, or wind.absolute time - Geologic time measured in years. Compare with

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Aaa lava - Lava whose surface is covered with random masses of angular jagged blocks.ablation - As applied to glacier ice, process by which ice below snow line is wasted by evaporation and melting.abrasion - Erosion of rock material by friction of solid particles moved by gravity, water, ice, or wind.absolute time - Geologic time measured in years. Compare with relative time.acid rain - Rain higher in acid than normal. Forms from sulfur dioxide (SO2) from the burning of fossil fuels; combines with water to form sulfuric acid.acidic lava - Lava containing 70 percent or more of silica.actynolite - A metamorphic ferromagnesian mineral; an asbestos.adiabatic rate - In a body of air moving upward or downward, change in temperature without gain or loss of temperature to air through with it moves.aftershock - Earthquake that follows a larger earthquake and originates at or near focus of larger earthquake. Major shallow earthquakes are generally followed by many aftershocks, which decrease in number as time goes on but may continue for days or even months.agate - Variety of chalcedony with alternating layers of chalcedony and opal.A horizon - Soil zone immediately below surface, from which soluble material and fine-grained particles have been moved downward by water seeping into soil. Varying amounts of organic matter give A horizon color ranging from gray to black.Airy hypothesis - Explains isostasy by assuming earths crust has same density everywhere and differe

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