Rock and Mineral Identification Flashcard

Front

What type of rock is formed by volcanic processes?

Back

igneous

Front

What causes obsidian to form?

Back

extremely hot rock that cools fast

Front

Which process produces metamorphic rocks?

Back

Extreme pressure

Answer explanation

Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors.

Front

What metamorphic rock is the result of heat and pressure on sandstone? Options: sandstone, limestone, quartzite, shale

Back

quartzite

Front

How did the metamorphic rock gneiss form?

Back

It was heated and put under pressure.

Front

Rocks that have been changed from other rocks by heat and pressure

Back

Metamorphic

Front

Which two processes formed this rock?

Back

compaction and cementation

Front

Fill in the missing step for the formation of sedimentary rock: 1. Weathering of rocks 2. ? 3. Sedimentation 4. Compression 5. Formation of new rocks

Back

Erosion

Front

What role does EROSION have in the formation of sedimentary rocks?

Back

Erosion moves rock sediment to the bottom of the ocean.

Front

Formed by heat and pressure

Back

Metamorphic