Exam 6: Weathering, Soil, and Sedimentary Rocks

A(n) ____________________ soil forms where the parent material has weathered, whereas ____________________ soil develops from eroded material that was weathered at another location.

A vertical sequence of a(n) ____________________ facies shows an offshore facies superposed on nearshore facies.

Briefly explain why water is such an important agent in chemical weathering.

Sediment becomes sedimentary rock by the process known as ____________________, which involves the ____________________ of grains, loss of water, and ____________________ whereby material is precipitated in pore spaces and binds grains together.

A vertical sequence of transgressive facies shows an offshore facies superposed on nearshore facies.

What is a marine transgression? What are the sedimentary facies associated with a marine transgression?

Explain why the ferromagnesian minerals most susceptible to chemical weathering are those formed early in the continuous branch of Bowen's reaction series.

Trace fossils are indications of organic activity, such as tracks and trails.

What are soil horizons? What are the designations of the soil horizons?

Chemical sedimentary rocks generally have an interlocking grain texture called:

How does loss of soil fertility exacerbate soil erosion?

How does weathering differ from erosion?

What are some ways in which fossils are useful?

How does regolith differ from soil?

Sorting is a result of:

____________________ ripple marks form in response to wind or water moving in one direction.

The geologic history of an area can only be known if there were humans around to record the events.

What is soil made of?

Detrital sediments and rocks are classified by:

____________________ erosion occurs when water carves small channels into a soil bed.