Mining

Question 1

what is ore?

Answer 1

material that can be mined, processed and sold at profit

Question 2

BCM

Answer 2

bank cubic metre - measure of volume of material

Question 3

swell factor

Answer 3

when blasted the material swells and the density drops to loose or broken density

Question 4

dilution

Answer 4

tonnes of waste material unavoidably mined together with the ore and sent to the processing plant

Question 5

selectivity

Answer 5

ability to mine to precise geological boundaries

Question 6

mining recovery

Answer 6

percentage of ore that is sent to the processing plant

Question 7

processing recovery

Answer 7

percentage of the commodity that is extracted from the ore

Question 8

ore mineral

Answer 8

mineral from which the valuable component will be derived

Question 9

grade

Answer 9

proportion of the ore that is actual metal content that can be extracted

Question 10

strain

Answer 10

deformation of material, amount of deformation an object experiences compared to its original size and shape

Question 11

elastic deformation

Answer 11

perfectly elastic when straining or unstraining takes place once the load is applied or removed

Question 12

brittle/ductile

Answer 12

rupture when the continuity of the deformation is lost
plastic is irreversible
brittle: recording the brittle elastic failure of rocks
ductile: preserving the permanent visco-plastic deformation

Question 13

fault

Answer 13

planar fracture or discontinuity in a volume of rock

Question 14

joint

Answer 14

fracture in rock where the displacement associated with the opening of the fracture is greater than the displacement due to lateral movement

Question 15

transform boundaries

Answer 15

2 plates sliding past each other

Question 16

divergent boundaries

Answer 16

2 plates pulling away from each other-rifts ocean openings

Question 17

convergent boundaries

Answer 17

2 plates moving together

subduction zone: one moving under another