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14 Questions

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Petrology: Classification of Rocks

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Questions and Answers

Which type of rock is formed through the cooling and solidification of lava or magma?

Igneous rock (correct)

Metamorphic rock

Conglomerate rock

Sedimentary rock

From which type of sediments are sedimentary rocks formed?

Volcanic ash

Intensely heated rocks

Mineral particles and binding matrix (correct)

Magma

What type of rock is formed from other rocks that are changed by intense heat and pressure underground?

Igneous rock

Sedimentary rock

Sandstone

Metamorphic rock (correct)

What is the main source of the material lime?

Limestone Signup and view all the answers

Where is sandstone found?

In river and stream beds Signup and view all the answers

What occurs when deeply buried sand is exposed to pressure and slightly higher temperatures?

Formation of conglomerate Signup and view all the answers

What type of rock is formed from the accumulation of calcareous shell remains?

Chalk Signup and view all the answers

Which type of limestone is poorly cemented?

Coquina Signup and view all the answers

What process forms tufa?

Precipitation of calcium carbonate Signup and view all the answers

Which sedimentary rock is distinguished by being fissile and laminated?

Shale Signup and view all the answers

Where is conglomerate most likely to form?

Near fault lines and tectonic activity Signup and view all the answers

What type of rock is formed when other rock is subjected to weathering?

Breccia Signup and view all the answers

Which one of the following is a nonfoliated metamorphic rock?

Quartzite Signup and view all the answers

"Riprap" is a common use for which type of rock?