igneous rocks
Geologists categorize and identify igneous rocks in two ways.
What are the two kinds of igneous rock groups?
Intrusive igneous rocks and Extrusive igneous rocks
Metamorphic rocks are formed deep beneath the Earth’s surface from ______ and _______.
Heat and pressure
Geologists classify sedimentary rocks into three types.
What are the three types of sedimentary rocks?
Clastic rocks
Organic Rocks
Chemical Rocks
______ is known as the “gluing” of sediments together.
______ is known as the “pressing/squeezing” of sediments together.
Cementation
Compaction
The process where any one rock type can turn into another rock type under certain conditions is known as the _______.
Rock Cycle
Igneous rocks that are intrusive will have ______ crystals.
LARGE
Geologists classify metamorphic rocks by their grain arrangement.
What are the two classifications?
Foliated and non-foliated rocks
Sedimentary rocks that are formed from pieces, or fragments, of other rocks is called ________.
Clastic sedimentary rock
______ is known as sediment being carried and deposited else where
Deposition
Molten material is known as ____
Magma
How are igneous rocks formed?
Igneous rocks are formed when magma cools.
What types of rocks can become metamorphic rocks?
All rock types:
igneous, sedimentary, and other metamorphic rocks
Sedimentary rocks, like coal and limestone, that are made up of once living things, are classified as _______________.
Organic rocks
__________ is known as the movement of sediments by wind, water, ice, heat, etc.
Weathering and Erosion
The weathering and break down of rocks will produce _______.
Sediments
An igneous rock that is high in silica is light colored. These rocks can be described as (malice, Felsic)
CHOOSE ONE
Felsic rocks
What are two examples of metamorphic rocks?
Marble and Slate
What is the most common type of chemical rock?
Halite (rock salt)
Metamorphic rocks that have grains arranged in layers is classified as _______.
Foliated metamorphic rocks
Rocks are made of __________________ and ______________.
Minerals and other materials
Porphyritic
The igneous rock known as Granite, undergoes heat and pressure, to form a metamorphic rock called ______.
Gneiss
Describe the four steps of how sedimentary rocks are formed.
1. Weathering/Erosion
2. Deposition
3. Compaction
4. Cementation
Mafic
Geologists study rocks and classify rocks based on it’s
1.____
2.____
3.____
Mineral composition and color
Texture
Origin