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MINING GEOLOGY > SET 1 > Flashcards

SET 1 Flashcards

Exam (54 cards)

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1
Q

Uses the kinetic energy of fluid (often water) to break the rock and minerals

A

Hydraulic Mining / Hydraulicking

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2
Q

Ore Deposit for Hydraulicking?

A

Placer Deposits

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3
Q

Explicitly prohibits the practice of hydraulicking in small-scale mining

A

DAO 2015-03

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4
Q

The primary reason why hydraulicking was regulated and restricted in the United States

A

California Gold Rush

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5
Q

Biggest hydraulic mine in the world during the California Gold Rush

A

Malakoff Diggins, North Bloomfield Mining and Gravel Company

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6
Q

What is the primary source of placer deposits?

A

Crystalline Rocks

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7
Q

One of the world’s largest copper and gold mines that utilized hydraulicking?

A

Grasberg Mine (Freeport-McMoran Inc., Indonesia)

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8
Q

Showcases the remains of
aqueducts and extensive
hydraulicking operations

A

Las Medulas (Spain)

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9
Q

Means sand or gravel bank or shoal where gold can be obtained by washing in spanish

A

Placer

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10
Q

Any area of unconsolidated rock fragments or particles that
may also contain minerals potentially of economic value

A

Placer

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11
Q

Involves the extraction of these unconsolidated materials without the use of explosives

A

Placer Mining

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12
Q

Alluvial deposits containing the
economic metals or minerals

A

Placer Ore Bodies

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13
Q

Form when the remaining eluvials, consisting of mineralized
rock, decompose in situ principally by chemical weathering
or in some cases by hydrothermal alteration

A

Residual Placer

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14
Q

Also termed colluvial or hillside placers, are transitional
between disintegrated rock and stream gravel

A

Eluvial Placer

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15
Q

Stream transport is a mechanism for forming placers

A

Stream/Alluvial Placer

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16
Q

Creek placers, river placers, and gravel plain deposits are forms of which placer?

A

Gulch Placer

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17
Q

These deposits form when the original lode deposit has been
sufficiently weathered to be weakened

A

Debris Flow/Pulse Placer

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18
Q

When streams cut downward through a previously deposited alluvial deposit, which placer is developed?

A

Bench Placer

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19
Q

Where mineral-bearing streams reach the sea or ocean before they drop the transported mineral load

A

Beach Placer

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20
Q

Are found in arid regions where erosions and transportation of debris depend largely on fast-rising streams

A

Desert Placer

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21
Q

Are concentrations resulting from the removal of lighter material by wind action.

A

Aeolian Placer

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22
Q

Are mineral deposits that have been associated with a moving glacier that scraped off loose rock debris, soil, and sometimes minerals

Study These Flashcards
A

Glacial Placer

23
Q

Any ofthe placers just described may be found submerged offshore on the continental shelf

Study These Flashcards
A

Marine Placer

24
Q

All methods that employ water or a liquid solvent to recover minerals from the Earth

Study These Flashcards
A

Aqueous Extraction

25
A simple method of separating particles of greater specific gravity from soil or gravel by washing in a pan with water; a small scale placer deposit mining method
Panning
26
Means the recovery of gold by the use of a dishpan like wood, metal or any material
Panning
27
Means the recovery of gold by using sluice boxes; use of sluice boxes to separate the gold but in a smaller scale than hydraulicking
Sluicing
28
Means rectangular, wooden lauder provided with side walls and cross pieces of sawn lumber or round poles, metallic screen, jute cloth, or a combination of both on its floor to retain the gold
Sluice Box
29
Involves driving adits (horizontal tunnels) into the hillside to extract high-grade placer mineral deposits that are located above the valley floor
Drift Mining
30
Used when the valuable minerals are found in relatively thin lenses on or near bedrock, covered by layers of worthless gravel and debris
Drift Mining
31
Placer Mining Companies
Klondike Gold Rush, Namibia, Siberia, Indonesia, Batang-batang Chromium Mine, Benguet, Camarines Norte
32
Underwater excavation using a floating vessel (dredge) for mineral extraction
Dredging
33
Excavate and transport minerals mechanically
Mechanical Dredging
34
Transport minerals as slurry using water
Hydraulic Dredging
35
Used for deep placer deposits (up to 160 ft)
Bucket-line Dredges
36
Uses a cutting head to loosen the material and transport it via pipeline; typical digging depth is up to 60 ft
Cutter-head Suction Dredges
37
Similar to cutter-head dredges, but use a vertical bucket wheel for cutting; typical digging depth is up to 115 ft
Cutter-wheel Suction Dredges
38
Similar to seabed dredging, this targets resources from riverbeds
Riverbed Dredging
39
This involves extracting sand, gravel, or other minerals from the seafloor
Seabed Dredging
40
This refers to methods used by individual miners or small communities, often for gold extraction
Small-scale Dredging
41
Dredging Companies
- Neumann Dredging - Australia - Waikaia Gold Ltd - New Zealand - IHC Mining - Netherlands - GREENPHIL MINERAL EXPLORATION AND DEVELOPMENT CO. INC. - JDVC Resources Corp - Peniel Resources Mining Corp
42
Established as a guarantee fund mechanism for environmental purposes to ensure timely compensation for damages and progressive and sustainable rehabilitation to any adverse effect a mining operation
Contingent Liability and Rehabilitation Fund (CLRF)
43
Established for dredging with commercial utilization of dredged materials
Environmental Guarantee Fund (EGF) and Environmental Monitoring Fund
44
Refers to any method wherein desired metal or mineral values are extracted from a deposit via a borehole after being fluidized in place
Borehole Mining
45
Injected into the formation after reagent (solvent) has been added to the water
Aqueous Solution / Chemical Leaching
46
Borehole Mining Companies
- Black Range Minerals Ltd, USA - InSitu Metals Corp., Canada
47
Chemical extraction of metals or minerals from the confines of a deposit or from a material already mined
Leaching
48
Extraction of minerals carried out in place
In Situ Leaching
49
Extraction of minerals performed in previously mined dumps, tailings, or slag piles
Heap Leaching
50
In Situ Leaching Companies
- Tortkuduk Uranium Mine, Kazakhstan - Florence Copper In-Situ Recovery Project
51
Australia’s first operating In Situ Leaching Mine
Beverly Uranium Mine, Australia
52
Maintains the ultimate responsibility for the regulation of the US nuclear industry, including uranium extraction and ISL
Nuclear Regulatory Commission (NRC)
53
Retains ultimate responsibility for underground sources of drinking water (USDW)
Environmental Protection Agency (EPA)
54
Authorized the Board of Minerals and Environment to adopt rules in situ leach mines
2006 South Dakota Senate Bill 62

MINING GEOLOGY (3 decks)

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