Exam 15: Riches in Rock: Mineral Resources

MVT (Mississippi Valley-type)deposits are secondary enrichments primarily of ____________ and ____________.

Which ore minerals are commonly found in ancient sedimentary deposits that are two billion years old?

The first widely used alloy in ancient civilizations was ____________.

The presence of gold in western South America is unrelated to the subduction zone nearby.

Most of the gold prospectors who arrived in California in 1849 were able to amass considerable fortunes.

The blocks of rock used in construction are termed ____________.

The metal ores that are found in veins within plutons typically occur ____________.

As compared to coal mining,there is virtually no adverse environmental impact of mineral mining.

Because it can be split easily into thin sheets and is impermeable,____________ is commonly used to make roofing tiles.

What kind of terrain would you expect to find a placer-type deposit?

Open pits on the surface of Earth,constructed to extract stone for building purposes,are called ____________.

The United States has active mines within its boundaries that are sufficient to maintain a steady supply of all strategically important metals.

The stereotypical gold rush prospector panning for gold in a streambed is an example of exploiting ____________.

Which of the following is an alloy?

Which list below places important pure metals and alloys in chronological order from first to last (most recent)in terms of their widespread use by humans?

Which mineral resources are considered renewable?

A drawback to mining sulfides is the risk of____________.

The smelting of iron ore requires temperatures of _________.

Because of their economic importance to society,copper and aluminum are considered precious metals.

Which of the three most commonly used metals sometimes occurs as a native metal?