Weekly review #4

Most of the sand that makes up the sandstone found in New York State was originally deposited in which type of layers?

• tilted

• horizontal

• faulted

• folded

Large volcanic eruptions sometimes send dust and ash into the stratosphere. After these eruptions, global air temperatures are often

• cooler than normal because the atmosphere is less transparent

• cooler than normal because the atmosphere is more transparent

• warmer than normal because the atmosphere is less transparent

• warmer than normal because the atmosphere is more transparent

The New York State index fossil Valcouroceras is classified as a

• coral

• crinoid

• eurypterid

• nautiloid

The convection currents responsible for moving tectonic plates occur in which Earth layer?

• crust

• rigid mantle

• stiffer mantle

• asthenosphere

If a seismic station is 3200 km from an earthquake epicenter, what is the time needed for an S-wave to travel from the epicenter to the seismic station?

• 4 min 40 sec

• 6 min 0 sec

• 10 min 40 sec

• 11 min 10 sec

Which rock would be the best source of the mineral garnet?

• basalt

• limestone

• schist

• slate

What are the rock name and map symbol used to represent the sedimentary rock that has a grain size of 0.006 to 0.2 centimeters?

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Which statement best explains why the volcanic ash layers are useful for correlating the relative ages of the bedrock in the three outcrops?

• The ash was deposited over a large area when a volcano erupted.

• There are no fossils found within the volcanic ash.

• The volcanic eruptions that produced the ash layer occurred over a long period of geologic time.

• The volcanic ash is found between many different layers of bedrock.

The topographic map below has a contour interval of 20 feet. Points A and B represent locations on Earth’s surface. Which profile best represents the topographic cross section along the line from A to B?

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The landscape feature labeled X is best described as

• a flood plain

• a sand bar

• a delta

• an escarpment