Unit4 Key Terms

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  • Created by: Gabby-A
  • Created on: 23-05-16 11:16
Porosity
The amount of pore space in a rock (%porosity = [total volume of pore space / total volume of rock] x100)
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Permeability
The ability of a rock to transmit fluids (permeability = distance water has traveled / time taken)
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Groundwater
The water retained in the pore space of rocks below the water table
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Water Table
The surface separating unsaturated rock above from saturated rock below
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Hydrostatic Pressure
The pressure at a point in a body of water due to the weight of the overlying column of water
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Aquifer
A body of porous and permeable rock capable of storing and yielding significant amounts of water
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Aquiclude
An impermeable rock that does not transmit water
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Recharge Zone
The area of an aquifer open to the atmosphere, allowing replenishment of water
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Draw Down
Describes the height difference between the water table and water level in the well
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Cone Of Depression
Occurs where there is a lowering of the water table in the vicinity of a well
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Trap
A geological situation that concentrates petroleum in one place
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(Natural) Resource
Any (natural) material that is useful and valuble
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Reserve
The amount of the resource that can be extracted at a profit
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Ore
The rock containing valuble metal(s) that is economic to mine
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Ore Mineral
A mineral containing valuble metal(s)
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Gangue Mineral
A low-value waste mineral
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Average Crustal Abundance
Describes the amount of metal in average continental crust
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Cut Off Grade
The minimum grade that is economic to mine
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Concentration Factor
The amount by which the metal is concentrated to make an ore deposit
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Hydrothermal Fluid
A hot, aqueous fluid containing dissolved metals in solution
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Geochemical Anomaly
A concentration of a metal above it's normal background value
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Leachate
The fluid generated by water dissolving soluble chemicals from landfill waste
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Other cards in this set

Card 2

Front

The ability of a rock to transmit fluids (permeability = distance water has traveled / time taken)

Back

Permeability

Card 3

Front

The water retained in the pore space of rocks below the water table

Back

Preview of the back of card 3

Card 4

Front

The surface separating unsaturated rock above from saturated rock below

Back

Preview of the back of card 4

Card 5

Front

The pressure at a point in a body of water due to the weight of the overlying column of water

Back

Preview of the back of card 5
View more cards

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