1) Answer the following question as True or False (1 point each a) TorF: The tot
ID: 289689 • Letter: 1
Question
1) Answer the following question as True or False (1 point each a) TorF: The total value of domestically produced raw minerals in the year 2013 was about $100 million. b) TorF: In exploration, reverse circulation drilling is usually much more expensive than diamond core drilling. c) TorF: Coal can be claimed under the current implementation of the 1872 Mining Law d) TorF: Any citizen of the world can stake a US mining claim under current US mining law e) T or F: Less than 15% of the electricity used in the US is generated using coal. TorF: Strip mining is the surface mining method that would be used with a massive porphyry copper deposit. TorF: The average grade of an orebody is always lower than the cutoff grade. TorF: The effect of dilution in mining is to raise the average grade of the material mined. TorF: All federally owned lands in the US are open to mine claim location. Tor F: Geophysical exploration techniques can always be used to determine the precise grade and extent (size) of a mineral deposit. g) h) i) 2) Fill in the blanks with correct words (2 points each) a) is the activity, occupation, and industry concerned with the extraction of minerals b) The s the barren or non-valuable material that lies above the mineable grade material, and must be removed in order to access the mineable material. c) In the phase of a mining project, the geometry, extent, and worth of a mineral deposit is determined using techniques similar to but more precise than those in prospecting. d) According to the Society of Mining Engineers guidelines for resource and reserve reporting, mineral reserves are reported as orExplanation / Answer
1.
a)T
b)F
C)F
d)F
e)F
f)F
g)F
h)F
i)T
j)T
2.
a)mining
b)over burden
c)exploration & feasibility
d)ores or overburderns
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