The James River Park System - Richmond, VA

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South Geology Tour

Stop 4d: Let's Talk Rock

Digging Deeper

Geology Test: Question: Name the three types of rock. Answer: 1. Classic 2. Punk 3. Hard

What are the 3 types of rocks?

IGNEOUS -- rocks formed as MAGMA (molten rock) cools. All rocks start from this source.
METAMORPHIC -- rocks that have undergone a change in structure by heat and pressure or by chemical reaction
SEDIMENTARY -- rocks that are formed from sediments that have been compacted and cemented together OR as chemical or biochemical deposits in water.

No sedimentary rocks are found within the park.

Ignatious Rock Formation

The Petersburg Granite on which you are standing is igneous rock.

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