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Mining & Exploration Geology > Mining Deposits in the Subsurface Environments > Flashcards

Mining Deposits in the Subsurface Environments Flashcards

1
Q

The sequence of the deposition or the sequence in which the minerals are formed in an ore deposit

A

Paragenesis

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2
Q

The general sequence of deposition

A 
Gangue Minerals (Silicates/ Carbonates)
Oxides
Sulfides & Arsenides of Fe/Ni/Co/Mo
Sulfides of Zn/Pb/Ag/Fe-Cu
Co/Pb/Ag Sulfosalts
Native Metals/Tellurides/Stibnite/Cinnabar
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3
Q

(a) is an uncommon telluride of gold in which (b) Gold are approximately replaced by silver. It was first discovered in (c) in 1861.

A

Calaverite
3%
Calaveras County

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4
Q

Metalloid Elements

A 
B
Si
Ge
As
Sb
Te
Po
At
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5
Q

is a solid material that is typically hard, opaque, shiny, and features good electrical and thermal conductivity

A

Metal

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6
Q

10 characteristics of Metals

A 
Solid 
Hard 
Metallic Luster 
Malleable
Ductile
High Melting and Boiling point
Good conductor of heat and electricity
Sonorus
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7
Q

Metals are solid except

A

Hg

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8
Q

Metals are hard except

A

Li, Na, K

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9
Q

Metals that have a low melting point

A

Ga, Cs

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10
Q

Metals that are poor conductor of heat

A

Pb, Hg

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11
Q

metals that are best conductor of electricity

A

Ag, Cu

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12
Q

Metals are broadly classified as

A

Ferrous

Non-ferrous

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13
Q

is any metal, including alloys that does not contain iron in appreciable amounts

A

Non-ferrous metal

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14
Q

are metals that include steel and pig iron and alloys of iron with other metals

A

Ferrous metals

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15
Q

Non-ferrous metal

A 
Al
Cu
Pb
Ti
Sn
Ni
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16
Q

Precious metals

A

Ag
Au
Pt

17
Q

Exotic or rare metals

A 
Co
Hg
W
Be
Bi
Ce
18
Q

are solids and gases are not good conductors of heat and electricity. These are chemical elements that form negative ions, have acidic oxides, and ore generally poor conductors of heat and electricity

A

Non-metals

19
Q

Characteristics of non-metals

A 
Soft
No luster
Not malleable 
Low melting and boiling point
Bad conductor of heat and electricity
Not sonorus
20
Q

Associated with Silicates and concentrated in the crust

A

Lithophile

21
Q

Associated with Sulfides

A

Chalcophile

22
Q

Subdivision of Ideal Chemical Formula

A 
Native Elements
Halides
Sulfides & Sulfosalts
Oxides & Hydroxides
Oxysalts (Carbonates, Phosphates, Tungstates, Sulfates)
Silicates

Mining & Exploration Geology (4 decks)

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