Zusammenfassung der Ressource
Types of Rock
- Igneous
- formed from
cooling
magma (4)
- Granite makes
up a large part
of all
continents (3)
- Basalt is the most
common type of
Igneous rock (3)
- Two Types (4)
- Volcanic
- formed on the surface (4)
- Examples are obsidian
and volcanic glass (4)
- Plutonic
- formed underground (4)
- Example granite (4)
- Makes up 95% of the Earths crust (4)
- Makes up 25% of the earths surface (4)
- Identifying igneous rocks (4)
- Based on interlocking crystals (4)
- Sedimentary
- Three groups based
on sediment type (2)
- Lithification of once living organic matter (2)
- Limestone is from coral reef (2)
- Non-clastic (2)
- marine organisms (2)
- Shells (2)
- marine skeleton (2)
- Non-Clastic chemical precipitation (2)
- crystallization (2)
- Precipitation type (2)
- sodium (2)
- Calcium (2)
- Silica (2)
- Iron (2)
- carbonate (2)
- Clastic lithification of weathered rock (2)
- Example conglomerate sandstone (2)
- rounded shape (2)
- classified based on particle type (2)
- Gravel
- Sand
- silt
- clay
- Fossils often found in sedimentary rock (4)
- Deposition of material at the Earth surface / bodies of water (4)
- makes up 5% of the Earth's crust (4)
- makes up 75 % of the Earth's surface (4)
- Metamorphic
- From igneous or sedimentary
rock as a result of high
temperature or pressure (4)
- Low grade metamorphism (1)
- Low Temperature or low pressure (1)
- High grade metamorphism (1)
- High temperature and high pressure (1)
- Non Foliated (1)
- Random arrangement
- Most well known: Marble (1)
- Large spherical shaped grains (1)
- Foliated
- directed pressure (1)
- Slate (1)
- Phyllite(1)
- Schist (1)
- Gneiss (1)
- High grade (1)
- Low grade (1)