Exam 15: Riches in Rock: Mineral Resources

Consult the figure below.These iron ore deposits,which started as sedimentary layers,are known as ________.

Commercial ore deposits are most likely associated with ________.

Examine the photograph below taken near Sudbury,Ontario.Why is this region devoid of vegetation?

Mineral-rich veins within plutons,deposited by hot groundwater into fractures within rock,characterize ________ deposits.

Secondary enrichment creates concentrations of metals by ________.

Mississippi Valley-type deposits are secondary enrichments primarily of ________ and ________.

Some metals are considered precious metals because of their ________.

Which types of ores are most commonly concentrated in magmatic deposits?

Consult the figure below.Which type of mineral resource do humans use in the greatest quantities?

Aluminum atoms are found in feldspars,which are a component of granite.Why then is granite NOT mined for aluminum? If not from granite,how do we obtain metals like aluminum?

In magma chambers,sulfide ore minerals typically ________.

The ability of a metal to be bent,molded,and stretched is termed ________.

What is a metal? Why do metals behave differently from nonmetals? Could a base metal ever be considered a precious metal? Explain

Most metals used by society are obtained from ________.

How and where does a placer deposit form?

Consult the figure below.Which of these is NOT required for a Mississippi Valley-type deposit to form?

Distinguish between cement and concrete.Describe why cement and concrete are so important to society.

Consult the figure below.In what kind of terrain would you expect to find a placer deposit?

The blocks of rock used in construction are termed ________.

In what types of rocks are ore minerals found?