Carbon Cycle L1-L3 Flashcards
How is terrestrial carbon held within the mantle released into the atmosphere
Volcanic outgassing
What does intense heating along subduction plate boundaries lead to
Metamorphoses of sedimentary rock to metamorphic
Which rock types to geologically derived carbon come from?
Limestone
Chalk
Which rock types does biologically derived carbon come from?
Shale coal
Which process rebalances the carbon cycle following a volcanic eruption
Chemical weathering
The bio geo chemical carbon cycle is called this because…
Biological and chemical processes determine how much carbon available on the earth’s surface is released at any one time
3 main forms carbon exists in
Inorganic, organic, gaseous
The biological carbon pump has which key function
Organic sequestratuon of CO2 to oceans by phytoplankton
Phytoplankton sequester over how many metric tonnes annual into the deep ocean
2 billion
The carbonate pump includes which key functions:
- Shells dissolve and become part of deep ocean currents
- organisms use calcium carbonate to make hard outer shells which build up on the sea floor when organisms die
The physical pump has which key function
The oceanic circulation of water and carbon
Where is CO2 mixed into water fastest
Atmosphere faster than ocean
Which temperature water has the most CO2 absorbing potential?
Colder
What do cold and warm waters do in relation to CO2?
- warm waters release co2
- cold waters take in co2
Thermohaline circulation involves which key processes?
- circulation of carbon
- circulation of nutrients
- shifting carbon from upper to deeper waters
