A type of rock formed by the crystallization of magma.
What is an igneous rock?
100
Sedimentary rocks.
When sediments become cemented together, they form what?
100
Depth
Pressure and temperature increase with?
100
False
Ore cannot be mined for profit. True or false?
100
Melting point also increases.
As pressure on a rock increases what dows its melting point do?
200
Granite
What is the most common intrusive Igneous rock?
200
Clastic sediments.
When weathering produces rock and mineral fragments known as what kind of sediment?
200
Texture, mineralogy, or chemical composition.
Metaphorfic rock forms when high temperatures and pressure combine to alter what three things?
200
Gold, silver, lead, and copper.
What are four important metallic elements not included in common minerals?
200
A set of illustrations that demonstrate the relationship between coolong magma and mineral formation.
What is Bowen's reaction series?
300
Felsic, Mafic, and Intermediate.
What is the three main groups of igneous rocks?
300
Greek
Lithify comes from the the word lithos which orginates from what culture?
300
Regional Metamorphism.
Large belts created from high temperatures and pressure that affect large regions of Earth's crust are called what?
300
Pegmatites.
What are veins of extremely large-grained minerals called?
300
Fractional Crystallization
What is the process wherein different minerals form at different temperatures?
400
False.
Ultramafic rocks have low silica content and very low levels of iron and magnesium. True or false?
400
Fossils
What is the best known feature of sedimentary rocks?
400
Near active volcanoes and igneous intrusions.
Hydrothermal Metamorphism is common around where?
400
molten rock, gases, and mineral crystals.
Magma is describes as a "slushy mix" of what?
500
Porphyritic texture
What is the texture called that is characterized by large' well-formed crystals surronded by finer-grained crystals of the same mineral or different minerals?
500
Cross-bedding.
Formed as inclined layers of sediment move forward across a horizontal surface is called?
500
Nonfoliated.
This type of metamorphic rock lacks mineral grains with long axes in one direction.
500
Kimberly, South Africa
Where were kimberlites first identified?
500
Silica (SiO2)
What is the compond found in magma that is most abundant and has the greatest effect on magma characteristics?