Geology Concepts: Outliers and Inlayers

What is a geological outlier?

• An older rock surrounded by younger rocks

• A rock formation that is not isolated

• A younger rock surrounded by older rocks

• A rock layer that is neither older nor younger

How does an outlier appear when viewed from above?

• As a continuous layer with no isolation

• As a younger rock isolated from the main layer

• As a rock layer with no distinct features

• As an older rock surrounded by younger layers

What is the main characteristic of a geological inlayer?

• It is a rock layer that is not exposed

• It is an older rock surrounded by younger rocks

• It is a younger rock surrounded by older rocks

• It is a rock formation that is continuous

How can an inlayer be exposed?

• By the inlayer being the topmost layer

• By the older layer being removed entirely

• By the younger layer completely covering it

• By erosion or faulting creating a hole in the younger layer

What happens to the older rock in an inlayer?

• It is exposed through a hole in the younger layer

• It remains hidden beneath the younger layer

• It becomes the topmost layer

• It is completely eroded away