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16 Questions

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Petrology and Classification of Rocks

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Questions and Answers

What is petrology concerned with?

The study of soil composition

The compositions, structures, and origins of rocks (correct)

The classification of sedimentary rocks

The formation of igneous rocks

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

Conglomerate rocks

Igneous rocks (correct)

Sedimentary rocks

Metamorphic rocks

What process forms sedimentary rocks like sandstone and limestone?

Compaction and cementation (correct)

Weathering and erosion

Volcanic activity

Intense heat and pressure

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

Metamorphic rock Signup and view all the answers

Where is sandstone found?

River and stream beds, beaches, deserts, and underwater Signup and view all the answers

What is the main source of the material lime?

Limestone Signup and view all the answers

What is the main constituent of oolitic limestone?

Calcium carbonate Signup and view all the answers

What distinguishes shale from other mudstones?

It is fissile and laminated Signup and view all the answers

Where is conglomerate commonly found?

Beaches, riverbeds, and glaciers Signup and view all the answers

Which rock is composed almost entirely of quartz?

Quartzite Signup and view all the answers

What type of limestone forms as a result of precipitation evaporation?

Travertine Signup and view all the answers

What is the characteristic appearance of breccia?

Large angular fragments cemented together Signup and view all the answers

What type of rock is gneiss?

Metamorphic rock Signup and view all the answers

What distinguishes coquina from other types of limestone?

It is poorly cemented limestone Signup and view all the answers

What type of sedimentary rock is shale?

Clastic sedimentary rock Signup and view all the answers

What event could lead to the formation of breccia?

Landslides and mudslides at the base of mountains Signup and view all the answers