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Ability of minerals to be sliced by a knife
Sectility
Texture of Igneous Rocks
Have no crystal structure
Glassy
Give an example of Igneous Rock
Graphite, Rhyolite, Andesite, Basalt, Diorite, Gabbro
Pressure on buried solid material causes the material to stick together
Compaction
Formation of Metamorphic Rocks: pressure builds up in rocks that are deep within the Earth
Regional Metamorphism
An aggregate of minerals which can be composed of single/more minerals.
Rocks
Texture of Igneous Rocks
No visible crystals
Aphanitic
Formed by weathering, erosion, deposition, compaction, and cementation of other rocks.
Sedimentary Rocks
Hardening and welding of clastic sediments
Cementation
F_ _ _ _ _ _ _ - layered
N _ _ - _ _ _ _ _ _ _ _ - grainy
Foliated and Non-foliated
Begins as magma; made up of magma
Igneous Rocks
Textures of Igneous Rocks
Visible crystals
Phaneritic
Breaking down of rocks at Earth's surface
Weathering
3 Classifications of Sedimentary Rocks
Clastic, Chemical, Organic
He developed the Rock Cycle.
Type of igneous rock: when magma cools slowly beneath the surface
Intrusive
Textures of Igneous Rocks
Some visible crystals /some not
Porphyritic
Soil and rock particles are worn away and moved
Erosion
Made up of other rocks
Metamorphic Rocks
Processes occurring on the Earth's surface and that generally reduce relief; on the Earth's crust
Exogenic Process
Type of igneous rock: where lava cools quickly on the surface
Extrusive
Two Compositions of Igneous Rocks
M_ _ _ _ - contains magnesium and iron
F_ _ _ _ _ - formed from silicic or felsic magmas
Mafic and Felsic
Laying down of sediment carried by wind, water, or ice
Deposition
Formation of Metamorphic Rocks: heated by nearby magma
Contact Metamorphism
Breakdown of Rocks into pieces without any change in its composition; change in size and shape
Mechanical Weathering (Physical Weathering)