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ES Chapter 12 Leach

ES Chapter 12 Weathering and Erosion Coach Leach

QuestionAnswer
abrasion mechanical weathering in which rocks collide and scrape against each other, wearing away the exposed surfaces
butte elevated, narrow, flat-topped area
carbonation chemical weathering process in which minerals react with carbonic acid
chemical weathering process in which rock is broken down as a result of chemical reactions
creep slow downhill movement of weathered rock material
exfoliation process in which sheets of rock peel or flake as a result of weathering
horizon layer of a soil profile
humus dark, organic material formed from the decayed remains of plants and animals
hydrolysis chemical reaction between water and another substance
ice wedging mechanical weathering caused by the freezing and thawing of water that seeps into cracks in rocks
landform physical feature of the earth's surface
landslide sudden movement of loose rock and soil down a slope
laterite thick infertile soils produced in tropical climates
leaching process in which water carries dissolved minerals to lower layers of rock
mechanical weathering process that changes the physical form of rocks
mesa elevated, flat-topped area smaller than a plateau
monadnock knob of rock that protrudes above a peneplain
mudflow rapidly moving large mass of mud
oxidation chemical combination of metallic elements with oxygen
peneplain low, almost level surface of a mountain
regolith layer of weathered rock fragments covering much of the earth's surface
rockfall fall of rock from a steep cliff
sheet erosion process in which parallel layers of topsoil are stripped away, exposing the surface of the underlying subsoil or partially weathered bedrock
slump downhill movement of a large block of soil under the influence of gravity
soil profile cross section of soil layers and bedrock
solifluction slow downslope flow of wet, muddy topsoil over frozen or clay-rich subsoil
talus pile of rock fragments that accumulates at the base of a slope
Created by: CoachLeach
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