Rock Classification l A rock is any solid
- Slides: 19
Rock Classification l. A rock is any solid mass of minerals that occur naturally as a part of our planet. l Rocks can be composed of just one mineral, or they can be made of a mixture of minerals.
Rock Classification l Rocks are classified into 3 groups based on HOW THEY FORMED l The 3 major rock types are: 1. Igneous Rocks 2. Sedimentary Rocks 3. Metamorphic Rocks
The Rock Cycle l All of the energy for Earth’s rock cycle comes from heat inside the Earth and the Sun’s heat and light.
Igneous Rocks • Energy source=Earth’s interior • Formed as magma cools • Magma=below earth’s surface • Lava=on earth’s surface (rocks form when lava cools) • Intrusive (IN) vs. Extrusive (OUT)
Igneous Rocks l Fine Grained: Form when magma cools at a fast rate l Course Grained: Form when magma cools slowly
Sedimentary Rocks l Sun’s heat and light are energy source for sedimentary rocks
Sedimentary Rocks l Order of Formation: 1. Weathering 2. Erosion 3. Deposition 4. Compaction 5. Cementation
Weathering l l l 1. 2. 3. Wearing away of materials Physical (Mechanical) and Chemical Factors affecting: Amount of rock exposed Climate Chemical Composition
Metamorphic Rocks l Energy source=Earth’s interior l Formed when existing rocks are changed by heat and pressure deep within Earth
The Rock Cycle 1. 2. 3. 4. Magma cools and crystallizes to form IGNEOUS rock Igneous rock undergoes weathering to form sediment. The sediment then becomes eroded and is then transported and deposited The deposited sediments are then compacted and cemented together to form SEDIMENTARY ROCK.
The Rock Cycle 5. As sedimentary rock is buried under more and more sediment, the heat and pressure of burial causes metamorphism to occur. This transforms the sedimentary rock into METAMORPHIC ROCK. 6. Metamorphic rock is buried and exposed to high temperatures that melt the rock, turning it back into MAGMA and the rock cycles starts all over.
- Can igneous rocks form metamorphic rocks
- No, there aren’t.
- Any to any connectivity
- Any question atau any questions
- Amorphous vs crystalline
- A solid solution example
- Covalent network solid vs molecular solid
- Crystalline solid and amorphous solid
- Crystalline solid
- Crystalline solid and amorphous solid
- Anisotropic meaning in chemistry
- When a solid completely penetrates another solid
- Interpenetration of solids
- Evaporation separating mixtures
- Solid rock precast
- Difference between rocks and minerals
- Shallow print or mark in solid rock
- Lynette lin
- Rock solid heart touching slogan
- Minerals vs elements