Igneous Rocks Exit Ticket

Which two minerals would most likely be found in the igneous rock if the rock is highly mafic?

• A) quartz and potassium feldspar

• B) quartz and pyroxene

• C) olivine and potassium feldspar

• D) olivine and pyroxene

Scoria is a type of rock that forms most directly from the process of

• solidification

• cementation

• erosion

• metamorphism

Which list identifies minerals present in andesite from the greatest percentage by volume to the least percentage by volume?

• A) biotite, plagioclase feldspar, amphibole

• B) biotite, amphibole, plagioclase feldspar

• C) plagioclase feldspar, biotite, amphibole

• D) plagioclase feldspar, amphibole, biotite

Which igneous rock could physically weather to beach sand that contains the minerals pyroxene, plagioclase feldspar, and olivine?

• dunite

• granite

• peridotite

• gabbro

The photograph below shows a magnified view of a portion of a rock that can float if placed in water. Which terms best describe this rock?

• A) non-crystalline and vesicular

• B) coarse and non-vesicular

• C) elastic and fragmental

• D) foliated and banded

Which processes lead directly to the formation of igneous rock?

• weathering and erosion

• compaction and cementation

• heat and pressure

• melting and solidification

Which texture best describes an igneous rock that formed deep underground?

• glassy

• vesicular

• fine grained

• coarse grained

What is the color and type of rock that forms oceanic crust at mid-ocean ridges?

• light colored and igneous

• light colored and sedimentary

• dark colored and igneous

• dark colored and sedimentary

Obsidian's glassy texture indicates that it formed

• slowly, deep below Earth's surface

• slowly, on Earth's surface

• quickly, deep below Earth's surface

• quickly, on Earth's surface

The flowchart below illustrates the change from melted rock to basalt. The solidification of the melted rock occurred

• slowly, resulting in fine-grained minerals

• slowly, resulting in coarse-grained minerals

• rapidly, resulting in coarse-grained minerals

• rapidly, resulting in fine-grained minerals

Tags

NGSS.MS-PS1-4