Quiz for geohazards - for test 2 Flashcards
A rock slide into a reservoir triggered catastrophic flooding of the landscape below which dam?
Vajont (italy)
Which of the following is NOT a product of effusive, Hawaiian-type eruptions?
Rhyolite domes
The largest mountain in the Solar System, called Olympus Mons, is an enormous shield volcano on _____.
Mars
Yellowstone is a classic example of which type of volcanism?
Continental hot spot
Unstable slopes start to move when the ________ force exceeds the ________ force that holds the material in place.
Downslope, resistance
An explosive subsea eruption involving a lot of steam and fountains of wet ash is called:
Surtseyan
Underwater avalanches of suspended sediments are called ______.
Turbidity currents
Which of the following increases the risk of mass movement?
Flooding the sediment with water to the point of saturation
What type of grains are going to have the steepest angle of repose when piled?
Coarse, angular and dry
Effusive eruptions occur when magma is _____.
Low viscosity
Hot, thin, runny lava flows with low silica content are typically _____.
Basaltic