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30 Cards in this Set

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Exposures or Outcrops
Visible weatharable rocks
Igneous rocks
From from cooling of molten material.
Lithification
Magma reaching the earths surface.
Sedimentary rocks
Formed from sediment. Some are made from living organisms.
Shale
Formed from clay
Strata
A tabular layer of igneous rock.
Metamorphic rocks
Formed from the alteration of other rocks, through pressure or heat.
Crystalline rocks
Igneous and metamorphic rocks
Greenhouse Gases
Gases that trap heat in the earth.
Reservoires
Bodies of chemical entities that occupy a particualr space.
Flux
Reservoirs expanding or collapsing
Negative feedback
Negative feedback, opposes the expansion of a reservoir.
Positive feedback
Accelerates change.
Respiration
Plants release energy from the sun.
Decomposers
Decomposers also put co2 into the atmosphere.
Biomass
All biomass will be consumed either by herbivores or decomposers.
Burial of Plant Debris causes
Buried plants increase carbon in the atmosphere.
Burial and erosion
Is in balance and levels of co2 and 02 have stayed stable
Erosion
Releases trapped co2.
Anoxic
Lack of oxygen.
At times when plants are buried rapidly
Global carbon dioxide goes down. Oxygen goes up.
Oceanic Biomass
Is consumed at a higher proportion than land biomass.
Carbon12 and carbon13
There is two different types of carbon based on how many nuetrons they have.
When carbon is buried rapidly
Carbon 13 becomes more prevalent so the amount of arbon 13 is useful for dating.
Limestone contains
Co2, and releases it when metamorphised.
Mountain Building
Increases the rate of weathering.
Temperature rise
increases the rate of weathering.
Precipitation
Increases the rate of weathering. So when there is more tropic areas weather increases.
Roots
Accelerate Weathering.
Positive feedback in the carbon cycle.
Frozen Methane release, takes up free oxygen and in the abundance of methane provides global warming.