Exam 22: Minerals, rocks, and Volcanoes

The asthenosphere is the region of Earth directly below the ______________.

An example of a sedimentary rock is

The sequence of interrelated events by which rocks are formed,altered,destroyed,and re-formed is known as the ______________.

Laccoliths and sills are examples of ______________ plutons.

______________,lava,and pyroclastics are the three general products emitted during a volcanic eruption.

Conglomerate and breccia are classified as ______________ rocks.

Which of the following is not one of the most common nonsilicate groups of minerals?

Chemical sedimentary rocks are classified into what two categories?

The metamorphosis of limestone leads to

The softest mineral on the Mohs hardness scale is named ______________.

Gas,lava,and ______________ are the three general products emitted during a volcanic eruption.

The element that is most abundant in Earth's crust is

Gabbro and rhyolite are classified as ______________rocks.

Silicates

The saying "The present is the key to the past" is a simple way to state the basic geologic concept of ______________.

Which of the following is not generally used in mineral identification?

Rocks solidified from molten material below ground are classified as ______________ igneous rocks.

Mount Saint Helens is the type of volcano known as a(n)______________.

Which of the following statements is false?

Any naturally occurring,inorganic,crystalline substance with a fairly definite chemical composition is called a(n)