Rock Test Review

IGNEOUS ROCKS:

The end product of weathering of gabbro or basalt rocks is a solution of dissolved material that most likely would contain high amounts of:

• iron and magnesium

• magnesium and potassium

• aluminum and iron

• aluminum and potassium

IGNEOUS ROCKS

What is the origin and rate of formation of the rock in the picture: (hint: those are gas pockets in the rock)

• plutonic with slow cooling

• plutonic with rapid cooling

• volcanic with slow cooling

• volcanic with rapid cooling

IGNEOUS ROCKS

An igneous rock is a dark-colored crystalline rock that formed when a lava flow cooled and solidified quickly on the surface of the Earth. This igneous rock is classified as an:

• extrusive, coarse and felsic

• extrusive, fine and mafic

• intrusive, course and felsic

• intrusive, fine and mafic

IGNEOUS ROCKS:

Which Igneous Rock has a vesicular texture and contains the mineral potassium feldspar and quartz?

• andesite

• pegmatite

• pumice

• scoria

IGNEOUS ROCKS:

Which diagram represents a landscape where fine-grained igneous bedrock is most likely to be found?

• 1

• 2

• 3

• 4

SEDIMENTARY ROCKS

Dolostone is classified as which type of rock?

• land-derived sedimentary rock

• chemically formed sedimentary rock

• nonfoliated metamorphic rock

• foliated metamorphic rock

SEDIMENTARY ROCKS:

The block diagram below shows a portion of the Earth's crust. Letters A, B, C, and D indicate sedimentary layers.

Which process produce rock layer B?

• subduction and melting

• uplift and solidification

• heat and pressure

• compaction and cementation

In which set are the rock drawings labeled with their correct rock types?

• 1

• 3

• 4

SEDIMENTARY ROCKS

The accompanying profile shows the average diameter of sediment that was sorted and deposited in specific areas A, B, C, and D by a stream entering an ocean.

As compaction and cementation of these sediments eventually occur, which area will become sandstone?

• A

• B

• C

• D

SEDIMENTARY ROCKS

The sequence of diagrams below represents the gradual geologic changes in layer X, located just below Earth's surface.

Which type of sedimentary rock was formed at layer x

• conglomerate

• shale

• rock salt

• coal