Exploration & Mining Geology

Question 1

is an applied science which combines the principles of economic geology and mining engineering to the development of a defined mineral resource

Answer 1

Mining Geology

Question 2

Mine geologists study ______________ and ____________. They are mainly responsible for ______________ in order to advise on short-term and long-term mine production plans

Answer 2

the relationship between geology and ore formation
locate new mineral resources

assessing and analyzing geological data

Question 3

may be defined as a rock that contains one or more elements sufficiently above the average crustal abundance to have potential economic value.

Answer 3

Mineral Deposit

Question 4

Two types of mineral deposits

Answer 4

Metallic Mineral Deposit

Non-metallic Mineral Deposit

Question 5

refers to a specific volume of material in a mineral deposit that can be mined and marketed at a reasonable profit under the prevailing conditions of the commodity prices, costs and technology

Answer 5

Orebody

Question 6

is the average concentration of a valuable substance in a mineral deposit

Answer 6

Grade (Tenor)

Question 7

is the minimum concentration required to achieve the break even point for mine in terms of revenue and costs

Answer 7

Cut-off Grade

Question 8

the reserves of an orebody are commonly classified

Answer 8

Measured
Indicated
Inferred

Question 9

refers to the pattern of distribution of the minerals in a host rock, and it varies from being very subtle to quite pronounced

Answer 9

Style of Mineralization

Question 10

Ore minerals dispersed throughout the host rock

Answer 10

Disseminated

Question 11

An interlacing network of small and narrow (commonly measured in centimeters), close-spaced ore-bearing veinlets traversing the host rock

Answer 11

Stockworks

Question 12

Mineralization comprising >50% of the host rock

Answer 12

Massive

Question 13

An ore zone that is extensive in two dimensions, but has a restricted development in its third dimension

Answer 13

Tabular

Question 14

Mineralization in veins, commonly discordant to the host rock layering

Answer 14

Vein-type

Question 15

Mineralization confined to a specific bed and, thus, broadly conformable to the host rock layering

Answer 15

Stratiform

Question 16

Mineralization discordant to host rock layering, but restricted to a particular stratigraphic interval

Answer 16

Strata-bound

Question 17

may be defined as mineralized area or region containing mineral deposits of a specific type or a group of deposits that possess features

Answer 17

Metallogenic Province

Question 18

a geologic time interval of pronounced formation of one or more kinds of mineral deposits

Answer 18

Metallogenic Epoch

Question 19

The discipline of economic geology encompasses three broad aspects

Answer 19

Scientific Study
Exploration
Exploitation

Question 20

an understanding of known mineral deposits in terms of their distribution, characteristics, and genesis

Answer 20

Scientific Study

Question 21

application of the knowledge so gathered and various techniques to the discovery and evaluation of new mineral deposits

Answer 21

Exploration

Question 22

continued investigation of a deposit being mined for maintaining adequate reserves and optimum grade

Answer 22

Exploitation