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Barnett - Hydrology

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Question
Answer
karst topography   areas where landscapes have been shaped by the dissolving power of groundwater; area has sinkholes and caves  
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limestone   a sedimentary rock that can be dissolved by groundwater to create caves  
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carbonic acid   found in most natural water; this chemical dissolves limestone to form caverns  
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cavern   naturally formed underground chamber  
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stalactite   icicle-like stone pendants that hang from the ceiling of a cavern  
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stalagmites   formations that develop on the floor of a cavern  
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sinkhole   depression formed when limestone below the soil is dissolved  
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artesian well   well in which the water naturally rises above the level of the water table  
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aquifer   rock or soil through which groundwater moves easily  
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zone of saturation   depth below earth's surface where groundwater completely fills all pore space  
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zone of aeration   area below earth's surface where the soil is moist, but the pores are filled mostly with air  
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water table   boundary between the zone of aeration and zone of saturation  
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subsidence   when groundwater is pumped from a well faster than it is recharged, causing the water table to lower and land to sink  
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spring   natural discharge of water where an aquifer and aquiclude meet  
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aquiclude   impermeable layer under earth's surface  
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permeable   ability to let water pass through  
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geyser   explosive hot spring where water erupts from earth due to heating from igneous activity  
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watershed   land area in which all water drains into a single river  
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estuary   area where the mouth of a river opens into an ocean; mix of freshwater and salt water  
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river delta   Triangular deposit of sediment where water empties into an ocean or lake  
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alluvial fan   River water emptied from mountain valley onto an open ; deposits (drops) sediment in a fan shape  
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Created by: ebarnett
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