THE ROCK CYCLE
Everything you need to know about the rock cycle here!
WHAT ARE THE THREE ROCKS IN THE ROCK CYCLE?
⚫Sedimentary Rocks ⚫Metamorphic Rocks ⚫Igneous Rocks
▶ Igneous Rock ➡ Sedimentary Rock/Metamorphic Rock
▶ Sedimentary Rock ➡ Metamorphic Rock/Igneous Rock
▶ Metamorphic Rock ➡ Igneous Rock/Sedminetary Rock
IGNEOUS ROCKS!
🔹 Igenous Rocks are formed when molten rock material solidifies. (Magma cools down)
🔹 There are 2 basic types of Igneous Rocks.
- Intrusive Igneous Rocks where the rocks solidifies underground.
- Extrusive Igneous Rocks where the rocks solidifies above Earth's surface.
Examples of Igneous Rocks:
Obisidian (Extrusive)
Granite (Intrusive)
Pumice (Extrusive)
SEDIMENTARY ROCKS!
🔹 Sedimentary Rocks are formed by sediments that pile up over time.
🔹 They form at low temperatures and pressures by deposition of water, wind or ice.
Examples of Sedimentary Rocks:
Sandstone
Limestone
Coal
METAMORPHIC ROCKS!
🔹 Metamorphic Rocks are formed by being modified by heat, pressure and chemical process
usually while buried deep below Earth's surface.
🔹 Exposure to these extreme conditions has altered the mineralogy, texture and chemical
composition of the rocks.
Examples of Metamorphic Rocks:
Novaculite
Marble
Phyllite