Rock Formation
What are Rocks made of?
Two or more Minerals
What are the 3 types of rocks that form in the rock
cycle?
Igneous, Metamorphic, Sedimentary
How do igneous rocks form?
Cooling of magma or lava
What happens during erosion?
Sediments are carried off by water, wind, or ice
What is the most well know metamorphic rock?
Marble
Which type of rocks contain fossils?
Sedimentary
Where do all rocks start from?
Lava or Magma
Where do extrusive igneous rock form?
Outside the crust of the Earth
What are some examples of sedimentary rock?
Limestone, Sandstone, shale, conglomerate
What process forms metamorphic rock?
Heat and Pressure
How do metamorphic rocks form?
Heat and Pressure on either the Sedimentary or Igneous rock
How does a sedimentary rock become and igneous rock?
Through a subduction zone
Where does intrusive igneous rock form?
Inside the crust of the Earth
How does sedimentary rocks form?
Weathering, Erosion, Deposition, Compaction, Cementation, and Lithification
What is contact metamorphism?
a geological process where pre-existing rocks are altered by the intense heat of a nearby igneous intrusion, such as magma or lava
Which types of rocks involve plate tectonics?
Metamorphic
How does an igneous rock become a sedimentary rock?
Weathering, erosion, deposition, compaction, concretization, and Lithification
Which characteristic is typical of extrusive igneous rocks
Fine-grained texture or glassy appearance
What is the importance of sedimentary rock?
Provides information of the earths history via the fossil record
What is regional metamorphism?
a type of rock alteration occurring over large areas, typically within mountain belts formed by plate tectonics
Which agent plays the biggest role in transporting sediments during rock formation?
Water
Which part of the rock cycle produces diamonds?
Metamorphic
What factors determine the visibility of crystals on the rock
Rate of cooling
What type of sedimentary rock is formed primarily from the remains of plants and animals
Organic
What is hydrothermal metamorphism?
a process where hot, chemically active, and fluid-rich waters interact with and transform surrounding rocks, often along mid-ocean ridges or near igneous intrusions