Exam 14: Weathering, karst Landscapes, and Mass Movement

The movement of unsaturated regolith and bedrock downslope is called earthflow.

The dynamic equilibrium model refers to which of the following?

When pressure is removed from overlying rock,the pressure of deep burial is relieved,initiating pressure-release jointing.The joints then separate into curved slabs.This is which process?

A landslide requires a substantial amount of water to saturate the mass of materials.

Exfoliation is an example of a chemical weathering process.

Which causes the uplift of mountains?

One side of a sand dune is typically steeper than the other side.The steepest slope is controlled by the angle of repose for sand and most materials.Which is this angle of repose?

As weathering mechanisms,how does hydration differ from hydrolysis?

Hydration involves which of the following?

Of which is this photograph an example?

Physical weathering changes the chemical composition of the rock.

Hydration does not result in the formation of new chemical compounds,whereas hydrolysis produces a different mineral through a chemical reaction.

Landscapes return to equilibrium quickly after dramatic events,such as a major landslide.

Physical weathering dominates in warm,wet climates.

Hydrolysis,hydration,oxidation,and carbonation are all examples of which weathering processes?

Scarification is an example of anthropogenic mass movement.

Which is the sudden rapid movement of an unsaturated cohesive mass of regolith or bedrock?

Salt crystal growth is most prevalent in humid regions.

Many of the Native American dwellings at Mesa Verde and elsewhere in the western United States are located under overhangs that form along the contact between permeable and impermeable rock layers.These overhangs (niches)were primarily created by what process?

Which of the following is a type of physical weathering process?