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Flashcards

CRM

Yeat Fai Cheong Inglês 18 flashcards

Flashcards do conjunto (18)

  1. 1Carrying capacityMax no of individuals of a given species, that can be supported on a sustainable basis
  2. 2BiocapacityAbility of ecosystem to PRODUCE
    biological materials and
    ABSORB CO2
  3. 3Ecological footprintHow fast we consume resources and generate waste
    VS
    How fast nature can absorb our waste and generate resource
  4. 4Earth overshoot day(World Biocapacity / Earth ecological footprint) x 365
  5. 5Ehrlich & Holdren's Equation Human ImpactPopulation x Affluence x Technology
  6. 6Renewable resoucesNatural resource that renews itself at
    rate that is faster or equal to
    rate of comsuption
  7. 7Non-renewable resourceslimited supply that comes from the Earth, or takes million years to be developed
  8. 8MineralNaturally occuring crystalline element/compound
    Inorganic part of Earth's Crust
  9. 9Mineral Resources-Concentration or occurence
    - In or on earth's crust of econ interest
    - Reasonable prospects for eventual economic extraction
  10. 10Reserves-Deposit,
    -Can be extracted profitably and legally
    under present econ and tech conditions
  11. 113 types of Mineral Deposit1) Proved/ Assured ore
    2) Semi-proved / Probable
    3) Possible
  12. 12Grade is considered by (2) :1) Amt of material in compound
    2) Distribution of compound in the rock
  13. 13Grade Exctractability is determined by1) Geometry of ore
    2) Mineralogy
    3) Accessibility of surface location
  14. 144 Categories of resources based on economic considerations:1) Economics
    2) Subeconomic
    3) Paramarginal
    4)Submarginal
  15. 154 categories of resources based on degree of assurance of occurenece1) Identified Resource
    2) Measured
    3) Indicated
    4) Inferred
  16. 162 forms on efficiency use of NRR1) Increasing non-renewable reserve base
    - bulk transportation for fuel saving
    -spread total costs over bigger output
    2) Use what we have more efficiently
  17. 17How to increase the efficient NRR?1. Find new ways to exploit low grade ores
    2. Extracting ore from more difficult environment
    3. Discovering new or better
  18. 18—

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FlashCards sobre CRM, criado por Yeat Fai Cheong em 18-12-2018.
Criado por
Yeat Fai Cheong
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