Classification Of Rocks And Its Exogenic Process Flashcards
Is a natural substance composed of solid crystals of different minerals that have been fused together into a solid lump.
Rock
Is an aggregate of mineral grains.
Rock
Contain only one mineral species.
Monomineralic
Contain two or more minerals
Polymineralic
Study of rocks
Petrology
classifications of rocks
Igneous, sedimentary, metamorphic
Rocks that were solidified from molten state
Igneous rocks
Chief elements in igneous rocks
Oxygen, silicon, sodium, aluminum, iron, magnesium, calcium, potassium
Classifications of igneous rocks
Intrusive, extrusive
Crystallized before magma reach the earth’s surface
Intrusive igneous rocks
From layers of lava that were solidified
Extrusive igneous rocks
Doesn’t include any fossil deposits
Igneous rocks
Characteristics of igneous rocks
Doesn’t include any fossil deposits, include more than one mineral deposit, glassy or coarse, don’t react with acids, patches with different size.
Characteristics of sedimentary rocks
Deposited at the earth’s surface by wind, water, glacier ice, or biochemical processes, typically deposited in STRATA.
Rocks that have been transformed by pressure, heat, or the intrusion of fluids
Metamorphic rocks
A process of mineral assemblage and texture variation
Metamorphism
Metamorphism can be?
Regional, contact, dynamic, metasomatic
Results in the formation of rocks that are strongly foliated.
Regional metamorphism
Occurs around intrusive igneous rocks.
Contact metamorphism
Pressure is the only cause of rock alteration
Dynamic metamorphism
When gases and liquids permeate into bedrock
Metasomatic
Makes the surface wear away
Exogenic processes
Responsible for degradation and sculpting the earth’s surface
Exogenic processes
