Vocab
A scientist who studies the classification and origin of all types of rock.
Sedimentologist
How is igneous rock formed?
Hardened lava or magma
Rocks formed from pieces of other rocks.
clastic sedimentary rocks
Metamorphic rocks with flattened mineral crystals, often looking banded.
foliated metamorphic rock
What are the three main rock types
Igneous, metamorphic & sedimentary
Individual rock particles, crystals, and sometimes fossils that combine to give a rock its texture.
Grains
Igneous rocks that were cooled inside the earth
Intrusive igneous
Rocks formed by chemical precipitation or as sediment built up from living things.
nonclastic sedimentary rocks
Metamorphosis through forces in a particular area
Regional metamorphism
The type of rock that appears to have changed from its original form.
metamorphic rocks
Segments of rock that fuse together to form a larger rock.
Clasts
Igneous rocks that were cooled on the surface?
Extrusive Igneous
Fossils are usually found in this type of rock.
What is sedimentary rock?
Metamorphic rocks that do not have bands or flaky layers.
nonfoliated metamorphic rocks
The old earth idea where most rocks will eventually return to the mantle and melt.
rock cycle
The type of rock most closely tied to the process of erosion.
Sedimentary rock
What do you call a two or more substances that have been physically combined, not chemically?
Mixture
How is sedimentary rock formed?
Formed from eroded rock and soil particles compacted and cemented together
Conditions rapidly changed, affecting rocks very quickly.
Dynamic metamorphism
The type of rock with no grain and that has a shiny smooth surface
Obsidian
The type of rock many young-earth creationists believe was created on the third day.
Igneous rocks
The law that states that all earth's matter is not created nor destroyed, just changed form
The Law of Conservation of Matter
Why is ice a mineral but not liquid water?
Minerals must be a solid.
Metamorphism through heat and compression in the surrounding area of magma.
contact metamorphism
The type of rock that is light and can float on water?
Pumice