Across
- 3. deposit zone of high grade ore just below the water table formed by secondary enrichment
- 6. heaps comprise waste piled up on the ground
- 8. horizontal tunnel dug into a hillside
- 9. when too little rock is extracted
- 10. insoluble cap of iron oxides at the surface
- 12. long-term weather conditions affecting an area
- 13. power releasing water stored behind a dam to turn a turbine to generate electricity
- 19. a geological situation that concentrates petroleum in one place
- 20. vein formed when minerals precipitate into a fracture
- 21. material is scraped or sucked from the river or sea bed.
- 23. impermeable rock that does not transmit water
- 24. rotational downwards and outwards of movement of incompetent rock and material.
Down
- 1. recovery where water is injected below or natural gas injected above the oil to maintain pressure
- 2. insoluble products of chemical weathering
- 4. resource is a useful and valuable natural material
- 5. uncontrolled oil gush to the surface
- 7. energy energy extracted from hot subsurface rocks or water
- 11. large igneous intrusion below a volcano with a porphyritic texture.
- 12. dilution where tributaries meet and water and sediment from other sources is added.
- 14. liquids that do not mix
- 15. red tropical soil made of hydrated iron and aluminium oxides.
- 16. percentage of carbon in coal
- 17. solution metal-laden solution produced by in situ or heap leaching.
- 18. mining mining from surface quarries
- 22. down height difference between water table and water level in well