A) closely examine rocks on the surface
B) study how much soil has developed on the surface
C) begin drilling in any site just to see what is down there
D) conduct some type of geophysical survey
F) All of the above
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A) seawater is heated by hot rocks and rises to the seafloor
B) a change in Earth's atmosphere caused copper to be deposited by groundwater
C) large magma chambers have crystal settling that concentrates the copper
D) weathering leaches the top of the deposits and concentrates the copper downward
F) B) and C)
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A) intense fracturing associated with meteoroid impacts,like at Sudbury
B) deposition of large amounts of quartz and calcite in the rock
C) dispersing the copper-rich grains by wind and water
D) leaching by weathering and redeposition at the water table
F) A) and C)
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A) the western part has a thick cover of sedimentary rocks
B) the eastern part subsided beneath the weight of thrust faults
C) Africa is being pushed under the western edge of the peninsula
D) oceanic crust in the Mediterranean Sea is subducted under the peninsula
E) none of these
G) B) and D)
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A) crystallization of the water-rich parts of a granite magma,forming pegmatite crystals
B) deposition of minerals by hot waters,such as in a vein
C) replacement of a rock by ore minerals due to hot fluids
D) formation in the mantle and subsequent rise in pipe-like volcanic conduits
E) none of these
G) A) and E)
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A) 1,the overthrust belt,which has shuffled sedimentary rocks
B) 2,where sedimentary rocks of the Green River Basin have been overridden beneath the Wind River Range
C) 3,the top of the Wind River Range,which is an anticline composed of Precambrian granite and metamorphic rocks
D) the Powder River Basin,which has coal bends in a syncline
F) None of the above
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A) 1,a deep canyon
B) 2,strong,impermeable rocks in the abutment
C) 3,impermeable rocks in the floor of the reservoir
D) all of these
F) B) and C)
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A) hiring geologists to do geologic field work
B) money for four-wheel-drive vehicles
C) geophysical surveys and drilling
D) gas taxes
F) B) and C)
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A) in the uplifted blocks within the mountains
B) beneath the large volcanic field in the center of the state
C) near areas where the rocks have been heated by uranium deposits
D) in sedimentary rocks buried within the basins
E) none of these-Wyoming does not have significant coal
G) D) and E)
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A) veins,which represent fractures in which hot waters deposited minerals
B) the base of modern stream gravels
C) ancient river gravels that have been buried to great depths
D) large deposits that contain low concentrations of gold
E) all of these are environments in which gold deposits form
G) C) and D)
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A) mining and milling the radioactive material,because of environmental regulations
B) separating the uranium from the rock in which it occurs
C) using gas centrifuges to preferentially enrich the more energetic uranium isotope (235U)
D) finding a material to moderate the reaction within the reactor
F) A) and C)
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A) using solar energy requires a large investment in photovoltaic panels and other infrastructure
B) biomass energy can involve burning scrap wood and methane from landfills
C) ethanol is mostly produced from corn and sugar cane,which can also be foods
D) fuel cells use oxygen and hydrogen as a fuel
F) B) and D)
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A) coal and coal-bed methane
B) gas hydrate
C) oil shale
D) all of these
F) C) and D)
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A) a volcanic eruption forms a crater that collects rainwater
B) toxic gases that accumulate in a cave cause an explosion
C) a cave collapses and groundwater deposits the uranium
D) collapse of a magma chamber forms a circular caldera and water from the magma deposits the uranium
F) A) and B)
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A) impurities are driven off
B) the coal is buried and squeezed to a smaller volume
C) the energy content of the coal increases
D) methane is driven off
E) all of these
G) All of the above
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A) the base of ancient stream gravels
B) veins formed by metamorphism
C) veins formed in calderas
D) large mafic to ultramafic intrusions
E) none of these
G) A) and E)
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A) a lack of hot springs indicating that the hot water is all trapped at depth
B) an area without recent volcanism which can disrupt the flow of groundwater
C) a shallow magma chamber,even one that is recently solidified
D) an area that lacks recent faulting,which can disrupt the continuity of aquifers
F) All of the above
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A) lower right part of the sandstone lens
B) middle of the sandstone lens
C) upper left part of the sandstone lens
D) shale directly below the sandstone lens
F) A) and C)
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A) how well the geologic interpretation matches what is seen at the surface
B) a nicely colored geologic cross section showing the interpretation
C) a computer model showing an interpretation of rock layers at depth
D) drilling an exploration hole into the subsurface
F) A) and D)
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A) lead and zinc minerals have a low density and rise to the top of crystallizing magma chambers
B) lead and zinc minerals are deposited by hot waters released from crystallizing granite
C) a change in Earth's atmosphere caused lead and zinc minerals to be deposited by seawater
D) deep groundwater,rich in lead and zinc,encounters buried hills of granite
F) All of the above
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