Mining in Ghana and the Resource Curse Hypothesis
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Questions and Answers

What is the product of the decomposition and disintegration of rocks by physical and chemical processes called?

  • Agglomerate
  • Laterites
  • Breccia
  • Tuff (correct)
  • What is the term for downward slope movement of soils and rock fragments impelled by gravity?

  • Volcanic Bombs
  • Ignimbrite
  • Laterites
  • Mass Wasting (correct)
  • Which process involves water percolating into the ground, dissolving minerals from rocks, and chemically breaking down the rock?

  • Mass Wasting
  • Weathering (correct)
  • Agglomerate
  • Erosion
  • What is the term for particles that are transported by wind, water, or ice after weathering and erosion?

    <p>Laterites</p> Signup and view all the answers

    When ash settles to the ground, solidifies, and may be compacted into a rock called what?

    <p>Ignimbrite</p> Signup and view all the answers

    What is the Paradox of Plenty mentioned in the text?

    <p>Countries with abundant natural resources tend to have worse economic growth.</p> Signup and view all the answers

    What percentage of Ghana's total export is accounted for by mining?

    <p>30%</p> Signup and view all the answers

    What is one reason provided in the text for the resource curse hypothesis?

    <p>Weak public institutions and government mismanagement</p> Signup and view all the answers

    What impact does mining have on the majority of people living in mining communities in Ghana according to the text?

    <p>Abject poverty</p> Signup and view all the answers

    Which sector experiences a reduction in competitiveness due to abundant natural resources according to the text?

    <p>Agriculture</p> Signup and view all the answers

    How much of the country's GDP is accounted for by mining in Ghana?

    <p>5%</p> Signup and view all the answers

    What are the main limiting factors for pit dimensions in terrace mining?

    <p>Seam exposure and pit width</p> Signup and view all the answers

    Which type of orebodies is open-pit mining most often associated with?

    <p>Pipe-shaped</p> Signup and view all the answers

    What is the primary excavation equipment used in open-pit mining?

    <p>Rope- or hydraulic shovels</p> Signup and view all the answers

    How is waste managed in open-pit mining?

    <p>Dumped outside the mined-out area</p> Signup and view all the answers

    What is typically used as the excavation method in open-pit mining?

    <p>Drill and blast</p> Signup and view all the answers

    Where is waste placed to minimize transport costs in open-pit mining?

    <p>Close to the edge of the pit</p> Signup and view all the answers

    What factor has led to failures of waste dumps in cases with coal seam inclinations more than 8 –20º?

    <p>Heavy rains</p> Signup and view all the answers

    Why are modified terrace or open pit mining methods sometimes applied in cases of coal seam inclinations beyond 8 –20º?

    <p>Due to difficulties in waste dump stability</p> Signup and view all the answers

    What working condition challenge arises when small scale changes occur in floor elevation or coal seam inclination?

    <p>Creation of difficult working conditions for dragline mining</p> Signup and view all the answers

    In areas previously mined by underground methods, what may be required to anticipate the stability of the overburden?

    <p>Geotechnical surveys</p> Signup and view all the answers

    What is the general approach for strip mining, regardless of the precise geology of the coal seam?

    <p>Similar to conventional strip mining</p> Signup and view all the answers

    Which mining equipment is typically used for loading coal below the overburden during strip mining?

    <p>Rope shovel</p> Signup and view all the answers

    What geological process is responsible for the formation of rifts in midoceanic ridges?

    <p>Divergence</p> Signup and view all the answers

    What type of water is involved in mineral deposition through groundwater solutions?

    <p>Rainwater</p> Signup and view all the answers

    What causes the enrichment of residual gold deposits following leaching?

    <p>Removal of associated minerals</p> Signup and view all the answers

    In what geological setting does subduction occur?

    <p>Convergent margins</p> Signup and view all the answers

    What is the primary cause of rock alteration by solutions in the text?

    <p>Hydrothermal fluids</p> Signup and view all the answers

    How does the enrichment of portions of a copper sulfide deposit happen?

    <p>Removal of copper content from weathered rocks by percolating waters</p> Signup and view all the answers

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