Exam 16: Unsafe Ground: Landslides and Other Mass Movements

Submarine mass movements have been found along hot-spot volcanoes and active plate boundaries.These massive slumps have been attributed to ____________.

Which of the following types of mass movement always travel down a curved surface?

Ground shaking can transform wet sediments into liquid-like slurries in a process known as ____________.

The principle difference between a debris flow and a mudflow is the ____________.

____________occur(s)where thawed sediments move downslope over permafrost.

To the geologist,____________.

Which type of mass movement includes a large proportion of ash derived from a volcanic eruption?

____________ in sedimentary rock may become a failure surface.

Slumps typically arrive intact at the bottom of a slope.

____________ can occur where undercutting waves remove support beneath sea cliff overhangs.

Unstable slopes start to move when the ____________ force exceeds the ____________ force that holds the material in place.

____________ are likely to occur along volcanic slopes.

____________occur(s)when debris or snow mixes with air to form a chaotic cloud.

All types of mass wasting have approximately the same velocities.

The principle difference between a debris flow and a debris slide is the ____________.

Which of the following types of mass movement takes place most gradually?

Fires and deforestation may lead to slope failure.

Strictly speaking,which of the following types of mass movement is a landslide?

____________occur(s)when regolith moves slowly downslope due to freezing and thawing.

Geologists distinguish among different types of mass wasting based on factors such as the ____________ of the moving material and the rate of movement.