ESSC Exam 3 Extra Credit Questions

It shows that minerals never form in the same order.

Which of the following is NOT true about Bowen's reaction series?

convection

Heat transfer by actual motion of material carrying thermal energy with it, is called:

Glassy

If a lava cools too fast for crystallization to occur, the resulting texture would be considered:

The rock cooled slowly at first, but then the cooling process speeded up.

In an igneous rock with two distinct classes of crystal size, which of the following is true?

Obsidian

This igneous rock is well known for its glassy texture:

Porphyritic

This type of igneous texture occurs when a magma partially crystallizes below the surface, then is erupted onto the surface:

Fractional crystallization.

What is the process by which a single parent magma can produce a variety of rocks of different composition?

increases

As pressure increases, the melting-point of a rock:

Increasing pressure raises the melting point except in the presence of water.

Which of the following statements about the creation of magma is true?

Phaneritic

This texture would be unlikely in extrusive igneous rocks?

volcanic mudflow.

A lahar can best be described as a:

Shield volcanoes

Mauna Kea and Olympus Mons are examples of?

an increased growing season.

All of the following are likely environmental effects of a volcanic explosion EXCEPT:

a highly eroded, volcanic peak.

All of the following events could indicate an impending eruption EXCEPT:

Dissolved gasses in the magma expanding as they approach the surface

The force that causes an eruption to occur is mainly due to:

Shield Volcano

Kilauea is an example of a:

Calderas

Crate Lake in the Pacific Northwest is an excellent example of:

Stratovolcanoes

Mount Saint Helens and Mount Vesuvius are examples of:

Mount Hood

All of the following are caldera forming volcanoes EXCEPT:

Volcanic Neck

Devils Tower is an example of: