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33 Cards in this Set

  • Front
  • Back

Perpetual (inexhaustible) resources

Solarenergy

Nonrenewableresources

resource of economic value that cannot be readily replaced by natural means on a level equal to its consumption

Recyclableresources

reusable resources

Renewable resources /Replenishable resources

resource which is replaced naturally and can be used again

Critical flow resource

effectively nonrenewable because of mismanagement



Rateof withdrawal > rate of replenishment

Systems,inputs vs. outputs

As we use a resource, we are taking froma stock, is applicable to renewable & non-renewable

Commonproperty resources

oceans,parks, owned by all of us

Rock

solidaggregation of minerals, tightly compacted or held together by cement-likematerial or by interlocking grains (bunch of minerals stuck together, i.e book

Minerals

naturally occurring solid inorganicchemical element or compound with a crystal structure, a specific chemicalcomposition, and distinct physical properties (i.e,just the words)

Mining

systematicremoval of rock, regolith, or other materials for the purpose of extractingminerals of economic interest - Most minerals are widely spread in lowconcentrations; miners and geologists must try to locate concentrated sources.

deposit

naturaloccurrence of a resource

grade

levelof concentration of ore in a deposit

ore

economicallyvaluable material in a deposit (will be mixed in with the non-valuable stuff)

gangue

“wasterock” and non-valuable minerals

solution mines

resources dissolved in a solution and then siphoned out


Can be surfaceor subsurface


less surfacearea disturbed than other methods acids, heavy metals, uranium can accidentally leak into groundwater

surface mines

- Strip mine (can lead to problems)


- Mountaintop removal


- Open-pit mine


- Placer operations

Subsurface

most dangerous



Strip mining

layers of soil and rock are removed toexpose a resource close to the surface (removes surface oil and rock)

overburden

overlyingsoil and rock that is removed by heavy machinery - After extraction, each stripis refilled with the overburden

Acid Mine Drainage

sulfidematerials form sulfuric acid and then flow into waterways

Leachate

contaminated water that leaches through

Effluent

contaminated liquid runoff

Mountaintopremoval

extension of strip mining



Openpit mining

- used for evenly distributedmaterials


- terraced for easier movement


- quarries – open pits for clay,gravel, sand, stone

Placermining

- uses running water, miners siftthrough material in riverbeds

ocean mining

some minerals can be extractedfrom seawater or ocean floor

Stages of mining

EMSP

Decommisioning

mine operation shut down

Reclamation

returnsite to condition similar to pre-mining condition

resource

wholestock of an economically useful/valuable commodity

reserve

portion of that resource that iseconomically recoverable w existing technology

static lifetime

lifetimeexpectancy of a resource at current rate of production and use

Factorsin lifetime of mineral deposit

- discovery of new deposits


-new extraction technologies


- changing social andtechnological dynamics- changing consumption patterns


- recycling