Petrology Quiz

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Questions and Answers

Which branch of petrology deals with the origin and formation of rocks?

Petrogenesis (correct)
Petrology
Mineralogy
Petrography

What is petrography?

The description and systematic classification of rocks, aided by microscopic examination of thin sections. (correct)
The study of the origin, occurrence, structure, and history of rocks.
The classification of rocks based on their color and texture.
The study of the minerals that make up different parts of a rock.

How many types of rocks are there?

Two
One
Three (correct)
Four

What do geologists observe when classifying a rock sample?

<p>Color, texture, and mineral composition (D)</p> Signup and view all the answers

What is the characteristic of coarse-grained rocks?

<p>The grains are large and easy to see (B)</p> Signup and view all the answers

Flashcards

Petrogenesis

Deals with the origin and formation of rocks.

Petrography

The description and systematic classification of rocks, often using microscopic examination.

Rock Classification Observations

Color, texture, and mineral composition

Coarse-Grained Rocks

The grains are large and easily visible without magnification.

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Study Notes

Which branch of petrology deals with the origin and formation of rocks? What is petrography? How many types of rocks are there? What do geologists observe when classifying a rock sample? What is the characteristic of coarse-grained rocks?