quiz 8 Flashcards
Which types of mass movement takes place most gradually?
creep
Which organic substance is produced by black organic shale at temperatures below (cooler than) the oil window?
kerogen
Consult the figure below. In what kind of terrain would you expect to find a placer deposit?
streambed
What increases the risk of mass movement?
flooding an unconsolidated sediment with water to the point of saturation
…occurs when a neutron strikes the nucleus a radioactive atom such as 235U.
fission
If oil shale is buried deep enough to attain a temperature of 200°C, what is formed?
gas
What situations is the most likely candidate for the occurrence of mass movements?
a mountain terrain in a humid environment
a cut bank along a river that was formed by a
slump
a reservoir rock containes … porosity and permeability, while a seal rock contains … porosity and permeability
high, low
Geothermal energy is used extensively in Iceland and New Zealand due to the fact that both of these countries host multiple
volcanic hot region
If the average geothermal gradient in an area is 15°C/km, how deep must oil shale be buried in order for it to transform into oil?
greater than 6 km but no more than 10 km
The image below is of the San Onofre Nuclear Generating Station in Southern California, which was shut down in 2012 due to safety concerns. Why?
earthquake risk
Moisture among sediment grains….
can promote stability if present in small amounts
You are an architect or engineer trying to determine if the slope on which your client’s house sits is stable. You determine that the angle of repose of the hillside is 35 degrees. Which of the following situations would such a slope be considered stable?
The slope is composed of dry gravel.
Which of the following mountains has recently produced a lahar flow.
Mount St. Helens
…is a nonmetal mineral formed by evaporation; it is used to make drywall board.
gypsum
…. power uses flowing water to produce energy.
hydroelectric
U-235, the isotope of uranium commonly utilized in nuclear power plants, is
only comprises about 0.8% in uranium-rich deposits and must be enriched to use as fuel
Slope failures are more likely to occur in… than in…
mountains: deserts
A large portion of the coal reserves in the world formed during the…. period.
Garboniferous
Most energy for human consumption in the industrial world comes from
fossil fuels
Construction workers and engineers often cut benches or terraces, such as those seen in the image below. along the sides of roads to help mitigate landslides. Why is this?
Terraces mitigate slope failure by removing weight from the hillside.
Shale, salt, and fine-grained limestone often serve as … within oil fields
a seal rock
Slope failures are most likely to occur in… conditions
wet, mountainous
Solar energy uses sunlight to induce a flow of .. between two wafers in silicon photovoltaic cells.
electrons
Nuclear fission produces a large yield of energy; however, this energy is not in the form of electricity. What form of energy is produced by fission?
thermal
Imagine you have just bought some property and notice that the trees on the slope have curved trunks, What type of landslide event do you likely have on your property?
creep
Well-rounded sand has a lesser .. than irregularly shaped gravel.
angle of repose
Which of the following types of mass movement often travels as a coherent mass down a curved surface?
slump
