ES 3209 Final Assessment Unit 4 Study Guide

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What factors can affect the explosivity of a volcanic eruption?

Magma viscosity, temperature, and silicon content (correct)

Volcano height, surrounding vegetation, and soil composition

Distance from the epicenter, ocean temperature, and wind direction

Epicenter depth, earthquake magnitude, and rock type

Which mineral deposit is formed through the deposition of minerals from hot water solutions?

Magmatic Deposit

Hydrothermal Deposit (correct)

Placer Deposit

Economic Mineral

What exploration technique is commonly used for separating minerals from gangue in ore processing?

Heap Leaching

Pyrometallurgy

Gravity Separation (correct)

Flotation

What determines whether a mineral deposit is considered economic or not?

Market demand and price, extraction cost, and ore grade Signup and view all the answers

What type of mine involves excavating minerals from an open pit?

Open Pit Mine Signup and view all the answers

Which factors can change the explosivity of a volcanic eruption?

Magma viscosity, temperature, silicon content, and gas content Signup and view all the answers

What type of boundary occurs when two tectonic plates move apart?

Divergent boundary Signup and view all the answers

Which type of seismic waves are surface waves that cause the most destruction?

Rayleigh waves Signup and view all the answers

What type of volcano is characterized by its gentle, flowing lava and low viscosity?

Shield volcano Signup and view all the answers

Which scale measures the intensity of an earthquake based on observed effects on people, buildings, and natural features?

Mercalli scale Signup and view all the answers

What type of plate boundary results in the formation of island arcs and volcanic arcs?

Convergent boundary Signup and view all the answers

Which type of fault is characterized by the hanging wall moving upward relative to the footwall?

Reverse fault Signup and view all the answers

At which type of plate boundary do earthquakes occur as a result of horizontal shearing forces?

Transform boundary Signup and view all the answers

What is the name for the hypothesis that suggests the outer rigid layer of the Earth is divided into a couple of dozen plates that glide over the mantle?

Plate tectonics theory Signup and view all the answers

Which type of volcanic eruption is characterized by explosive eruptions ejecting pyroclastic materials?

Plinian eruption Signup and view all the answers

At what type of plate boundary is new crust being formed?

Divergent boundary Signup and view all the answers

ES 3209 Final Assessment Unit 4 Study Guide

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