Exam 22: Minerals, rocks, and Volcanoes

The physical characteristic that is used to distinguish intrusive igneous rocks from extrusive igneous rocks is _____________.

Solids emitted by volcanoes can range in size from fine dust to boulders.Such solids are known collectively as ______________.

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

Laccoliths and sills are examples of ______________ plutons.

Dikes are examples of ______________ plutons.

That each successive layer of sediments is deposited on top of the previous layer,and hence is younger than the lower layer,is a statement of the

The sedimentary rock known as ______________ consists of angular pebbles cemented together by silica,calcium carbonate,or iron oxide.

The Hawaiian Islands and the Emperor seamount chain were formed when the Pacific plate rode over a(n)______________.

The physical characteristic that is used to distinguish intrusive igneous rocks from extrusive igneous rocks is ______________.

A common scale for denoting a mineral's hardness is the

The Mohs scale is based on how many minerals?

Which mineral is a hard and brittle silica that shows conchoidal fracture?

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

Which of the following is not a metamorphic rock?

A volcano with a low,gently sloping profile is a

Sediments that are transported to the sea in solution are known as ______________ sediments.

New rocks that have had their original form altered by heat and pressure,but without melting,are classified as

Intrusive igneous rock formations that cut more or less vertically across older formations are said to be ______________.

A(n)______________ is the surface expression of magma that originates in the asthenosphere and deeper.

The existence of the Ring of Fire is best explained by the