Study Notes Flashcards
Felsic
Light colored
What is a rock?
A solid mineral that forms from earths surface.
Mafic
Dark colored
Ultra mafic
Composed of mafic
Difference between intrusive and extrusive…
Intrusive: solidification of magma within the crust.
Extrusive: magma extruded as lava flows.
8 most abundant elements of earths crust
Oxygen Silicon Aluminum Iron Calcium Sodium Potassium Magnesium
Igneous
Having solidified from lava or magma.
Sediment
A matter that settles at the bottom of a liquid
Clastic
Formed from other particles
Non clastic
Formed from chemical precipitate
The 3 forms of sedimentary rocks…
Clastic
Chemical
Organic
Bedding
The bottom layer
Graded bedding
Change in grain or clast size starting from the bottom to the top.
Cross bedding
Layering within a stratum and at an angle to the main bedding plane.
Foliated
Layered
Non Foliated
Non layered
Regional
Affecting rocks over a large area as a result to high heat and pressure.
Contact
Due to contact with or proximity to an igneous intrusion.
What is necessary to undergo metamorphism?
Heat and pressure
What kind of rock can become a metamorphic rock?
Igneous
What rocks are heated what are they going through
Chemical change
