course outcome 3 Flashcards

earth's resources (104 cards)

1
Q

energy resources
metals
non-metallic resources
renewable resources
nonrenewable resources

A

types of geologic resources

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2
Q

petroleum (oil and natural gas), coal,
uranium, geothermal resources

A

energy resources

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3
Q

iron, copper, aluminum, lead, zinc, gold, silver, platinum.

A

metals

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4
Q

sand and gravel, limestone, building
stone, salt, sulfur, gems, gypsum, phosphates, groundwater, etc

A

non-metallic resources

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5
Q

replenished by natural
processes fast enough that people can use them
continuously.

A

renewable resources

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6
Q

form very slowly and are
extracted and used must faster than they can be
renewed naturally.

A

nonrenewable resources

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7
Q

the total
amount of any given
geologic material of
potential economic
interest, discovered and
undiscovered

A

resource

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8
Q

discovered
deposits of geologic
resources that can be
extracted economically
and legally under
present conditions

A

reserves

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9
Q

It refers to the combination of
various primary energy resources
(carbon-based and non-carbon
based) used to meet the energy
needs in a geographic region.
These primary energy resources
are used for:
Power generation
Fuel for transport
Heating and Cooling of residential
areas and industrial

A

energy mix

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10
Q

carbon-based sources
noncarbon-based sources
renewable sources
non-renewable sources

A

Classification of energy sources

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11
Q

obtained from the oxidation or burning of carbon

A

carbon-based sources

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12
Q

Do not generate carbon dioxide

A

Noncarbon-based sources

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13
Q

naturally replenished in a human timescale; constantly
replaced

A

renewable sources

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14
Q

finite and becomes depleted over time with continued use

A

non-renewable sources

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15
Q

a sedimentary rock that
forms from the compaction of
plant material that has not
completely decayed.
Peat – unconsolidated plant
material.
Lignite– (brown coal) is soft and
crumbly.
Sub-bituminous and
bituminous – (soft coal) is black
and dusty, burns with a smoky
flame, is commonly strip mined.
Anthracite – (hard coal), shiny
and dust-free, burns with a
smokeless flame, low level
metamorphic rock.

A

coal

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16
Q

occurs in underground pools and
requires:
Source rock rich in organic
matter.
Reservoir rock in which it can be
stored and transmitted (for
example, sandstone).
Structural (or Oil) trap, a set of
conditions holding rock in
reservoir rock and preventing
migration.
Deep burial and sufficient time
to cook the oil and gas out of the
organic matter.

A

petroleum and natural gas

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17
Q

regions underlain by
one or more oil pools.
Oil and natural gas are removed
through wells drilled down into
an oil trap within a reservoir
rock.
Negative environmental effects
resulting from oil recovery and
transport include oil spills,
brine contamination of surface
water, and ground subsidence

A

oil fields

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18
Q

currently estimated
to last another 50 years at current
rates of use, worldwide

A

oil reserves

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19
Q

danger to miners
contribution to climate change (mainly carbon dioxide)
atmospheric pollution in the form of acid rain (mainly
sulfuric acid)
surface and groundwater pollution due to acid mine
drainage (mainly sulfuric acid)
emission of toxic elements to the atmosphere (especially
mercury)
ash waste impoundment failures

A

effects of coal mining and use

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20
Q

ost rocks are largely left in
place and coal is removed by trucks, conveyor bells, or
rail.

A

underground mining

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21
Q

oal seams are at a shallow level and
the relatively thin overburden is removed.

A

surface mining

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22
Q

large bucket machines first remove the
overburden followed by the coal

A

strip mining

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23
Q

explosives remove the
overburden and the exposed coal is removed

A

mountaintop removal mining

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24
Q

caused by atmospheric
emissions of sulfur dioxide and
nitrogen oxides from burning fossil
fuels, mainly coal.
Coal contains varying amounts of
sulfur, commonly in the form of
pyrite, which becomes oxidized to
sulfur dioxide when the coal is
burned.
Sulfur in the form of pyrite can be
removed mechanically, addition of
limestone and water to flue gases

A

acid rain

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25
geothermal energy solar energy wind power hydroelectric power
renewable energy sources
26
Heat energy from beneath the Earth’s surface
geothermal energy
27
uses photovoltaic cells to generate electricity
solar energy
28
use of wind turbines to generate electricity
wind power
29
use of falling water to turn a turbine and generate electricity
hydroelectric power
30
use of tidal changes to spin turbines and generate electricity
tidal power
31
captures the energy of waves to generate electricity; mostly experimental technology.
wave power
32
fuels derived from biologic (recently dead) matter such as ethanol and vegetable oil.
biofuels
33
Seismicity Drilling exploratory wells in geothermal areas can induce earthquakes by hydrofracturing Disposal of Effluent Water Leakage of water from water reservoirs, or - Disposal of wastewater in deep rock formations
negative environmental impacts of geothermal energy
34
erosion and sedimentation low water levels downstream high water levels upstream ecosystem damage displaced population methane emissions earthquakes
negative impacts of hydroelectric dams
35
Use large amounts of steel compared to fossil fuel plants Noise Spoiling of scenic views Hazards to bird migrations
negative impacts of wind energy
36
Large solar arrays are not compatible with agricultural land. Desert environments, however, generally do not compete with agricultural land, and provide abundant sunshine, making them suitable for solar electricity production.
negative impacts of solar energy
37
energy released by a heavy nucleus when it is broken into two smaller nuclei due to bombardment by neutrons with the consequent release of radiation and large amounts of heat non-renewable and mainly uses uranium, plutonium and thorium as its fuel source no combustion reactions involved
nuclear energy
38
Henri Becquerel discovered the natural radioactivity of uranium in 1806. The artificial radioactivity in uranium can be produced by bombarding the nucleus with neutrons. Being uncharged, neutrons can easily enter the nucleus of an atom and split it into two smaller atoms of about same size – Fission
nuclear fission
39
Republic Act No. 2067 Science Act of 1958 Created the Philippine Atomic Energy Commission (PAEC) Republic Act No. 5207 Atomic Energy Regulatory and Liability Act of 1968 Established the comprehensive nuclear regulatory function of PAEC that is to provide the licensing and regulation of atomic energy facilities and materials Executive Order No. 784 Placed PAEC under National Science and Technology Authority (NSTA) Executive Order No. 128 In 1987, PAEC became the Philippine Nuclear Research Institute (PNRI)
nuclear energy
40
radiation nuclear waste disposal
impacts of nuclear energy
41
a naturally occurring, inorganic, crystalline solid that has a specific chemical composition. Forms in the geosphere, hydrosphere, biosphere, and even the atmosphere. Consistent and recognizable physical and chemical properties.
mineral
42
aggregates of minerals.
rocks
43
Atoms must be in close proximity to each other for bonding to occur. Opposite charges allow the ions to be “glued” in place as their charges are neutralized. Creates regular arrangements of atoms in crystalline structures. The Silicate minerals are a very important group of minerals formed from the two most common elements in the crust – silicon and oxygen.
crystalline structures
44
Strongly bonded silicate ion. Basic structure for silicate minerals: Isolated Silicate Structure. Chain Silicates. Sheet Silicates. Framework Silicates.
silicon-oxygen tetrahedron
45
The more shared Oxygen atoms per tetrahedra, the more complex the silicate structure. Isolated tetrahedra (none shared). Chain silicates (2 shared). Double–chain silicates (alternating 2 and 3 shared). Sheet silicates (3 shared). Framework silicates (4 shared).
silicate structures
46
carbonates sulfates sulfides oxides native elements
non- silicate minerals
47
a range of compositions in common silicate minerals.
solid solutions series
48
when minerals with the same composition have different crystalline structures such as graphite and diamond.
polymorphism
49
rock-forming minerals identification of minerals
physical properties of minerals
50
visible hue of a mineral.
color
51
color left behind when mineral is scraped on unglazed porcelain.
streak
52
way light reflects off surface of a mineral.
luster
53
scratch– resistance.
hardness
54
external geometric form
external crystal form
55
breakage along flat planes due to weaker bonds. Defined by the number of planes and angle between them
cleavage
56
irregular breakage: Occurs when minerals break along strong bonds. Some minerals don’t have weak bonds
fracture
57
density relative to that of water. The specific gravity of water is 1, quartz is 2.65, galena is 7.5, gold is 19.3. You can feel these differences when holding mineral samples.
specific gravity
58
striations magnetism double refraction chemical tests
special properties
59
straight parallel lines on the flat surfaces of crystal faces
striations
60
attracted to magnet
magnetism
61
two images are visible when looking through the mineral
double refraction
62
calcite effervesces (bubbles) in dilute HCl.
chemical tests
63
minerals that form from a crystallizing liquid such as silicates and carbonates. Liquid could be magma, water, or other solutions
precipitates
64
mineral formed from the actions of living organisms such as coral reefs.
biological activity
65
minerals that form as gases from volcanic vents crystallize into solids such as sulfur
sublimination
66
metal ores ores formed by igneous processes crystal settling hydrothermal fluids contact metamorphic deposits hydrothermal veins disseminated deposits hot-spring deposits
metallic resources
67
construction materials fertilizers and evaporities gemstones asbestos, glass sand, fluorite, diatomite, graphite
nonmetallic resources
68
Chemical Precipitation in Layers. Banded Iron, Manganese and Copper Ores. Placer Deposits – concentration of mineral deposits by stream processes. Gold, platinum, diamonds and other gemstones. Concentration by Weathering. Aluminum Ore – Bauxite
ores
69
Forms when magma cools. Sulfide minerals would crystallize early and sink to the bottom of the magma chamber (Gravity settling) and accumulate
magmatic concentration deposit
70
Involves the circulation of hot-water solutions through a magma or through the rock surrounding an igneous intrusion The fluids dissolve metals and when it enters a different environment it would precipitate
hydrothermal deposit
71
Deposits of copper-zinc- lead concentrated on the ocean floor at divergent and convergent boundaries Formed due to black smokers and white smokers which are ocean ridge vents that release hydrothermal fluids. Accumulate by the growth and collapse of black smoker chimneys forming layered or lens-shaped deposits
volcanogenic massive sulfide deposit
72
Principal source of copper When silica-rich magma intrudes and fractures the host rock. Magma emplacement and hydrothermal fluid circulation lead to the precipitation of metals in a complex network of veins
porphyry deposit
73
Largest and most important iron deposits Formed from the chemical precipitation in shallow marine environments around 1.8 to 2.5 billion years ago. Consist of alternating iron-rich and silica-rich layers. Could be several hundred meters thick and encompassing >100km² in area. Precambrian Banded Iron Formation from Michigan Note the alternating layers of quartz and magnetite
banded iron deposit
74
MVT or Mississippi-Valley Type Rain would percolate downward to the bottom of the basin where temperatures are high enough to dissolve metals Water would rise into cooler areas where metals would precipitate.
MVT ore
75
Due to weathering, surface waters could oxidize ore minerals and yield acidic solvents that dissolve other minerals. Oxidized ores could be leached of valuable materials and then brought downwards. It is then brought to below the water table where it precipitates thus a zone known as supergene sulfide enrichment
secondary-enrichment deposit
76
When rainwater leaches elements but leaves behind others as part of the process of forming soil. The residue left can include concentrations of iron, aluminum or nickel. Laterite profile Iron = laterite zone Nickel = saprolite zone
residual mineral deposit
77
Develop when rocks containing native metals erode Nuggets or metal flakes of metals such as gold would accumulate in sand or gravel along the course of rivers
placer deposit
78
Contact metasomatic deposits Form due to the hydrothermal fluids that are released from magma which would alter the country rock (usually carbonate) to form a complex assemblage of minerals EXOSKARN - develops in any sedimentary country rock ENDOSKARN - develops in igneous country rocks
skarn
79
Aggregation of ore minerals and gangue which one or more metals may be extracted at a profit
ore
80
Associated, usually worthless, nonmetallic minerals of a deposit
gangue
81
can be done at Earth’s surface or underground; metals mined include iron, copper, aluminum, lead, zinc, silver, gold and many others. Strip Mining. Open-pit Mining. Placer Mining - Panning, Sluice boxes, Hydraulic. Underground/bedrock mining. Negative environmental effects of mining. Tailings piles, surface scars, land subsidence, and acid mine drainage can be minimized.
mining
82
The science and technology of extracting metals from their natural sources and preparing them for practical use
metallurgy
83
A movable object with no direct use that is discarded permanently Waste Classification based on their components Solid Liquid gaseous Waste classification based on generator Municipal Commercial Industrial or Agricultural
waste
84
solid and liquid wastes resulting from the ordinary day- to-day consumption of goods and services in a household Disposed food scraps, bottles, cans
municipal or domestic wastes
85
wastes produced from business or trade; also included are wastes due to sports, recreation, education or entertainment Rubbish from food establishments (food wrappers and container)
commercial wastes
86
wastes resulting from the manufacture of goods Effluents/wastewater from industries
industrial wastes
87
wastes resulting from treatments of illnesses and trauma Disposed medical gloves, medicine containers, syringes
medical wastes
88
wastes resulting from agricultural processes Excess fertilizer and pesticide solutions
agricultural wastes
89
wastes resulting from mining and ore processing wastes from the extraction and production of coal Mine tailings, slag, wastewater with dissolved heavy metals
mining wastes
90
all wastes resulting from the discovery, extraction and processing of oil and natural gas; also, wastes generated from drilling Gases such as carbon dioxide, hydrogen sulfide
oil and gas wastes
91
wastes as by-products of nuclear power plants and/or other radioactive activities Spent nuclear fuels, radioactive materials
nuclear wastes
92
creates favorable conditions for pathogen/microbial growth when wastes ferment handling of can result in various types of infectious and chronic diseases
organic domestic waste
93
direct exposure can lead to diseases through chemical exposure
hazardous waste exposure
94
disposal of industrial hazardous waste with municipal waste can expose people to chemical and radioactive hazards. Contamination of the water body or the ground water source when wastes are dumped near water bodies accumulation of toxic substances in the food chain through the plants and animals that feed on it.
waste from agriculture and industries
95
requires special attention since this can create major health hazards.
disposal of hospital and other medical waste
96
Improperly operated incineration plants air pollution Improperly managed and designed landfills attract all types of insects and rodents Ideally these sites should be located at a safe distance from all human settlement. Landfill sites should be well lined and walled to ensure that there is no leakage into the nearby ground water sources.
waste treatment and disposal sites
97
isolation incineration attenuation
3 categories of disposal of solid and liquid wastes
98
encapsulating, burying or in some other way removing waste from environment
isolation
99
burning of trash leaving behind a smaller volume residue to be isolated/attenuated
incineration
100
diluting or spreading of trash/pollutant so thinly so as to have little impact
attenuation
101
Semisolid by-product of sewage treatments Maybe used as fertilizers. However sludge from industries must be properly disposed since they contain heavy metals and other toxic substances
sewage sludge
102
Methane gas, generated when anaerobic microorganisms digest/ferment wastes in a landfill, can pose problems in landfills if not handled properly Leakage may cause unexpected explosions Can be utilized as fuel if extracted and purified properly
landfill gas generation
103
Leachate from landfills may contaminate groundwater if not properly managed Poorly operated landfills may form an underground area of polluted groundwater (contaminant plume) due to leachate infiltration
leachate pollution
103
recycling composting multi land-use strategies nuclear waste disposal
special situations on waste management