Classifying Rocks
A natural, solid mixture of minerals or particles is called this.
What is a rock?
Igneous rock that formed from magma and cooled very slowly UNDERNEATH the earth's surface is called this.
What is Intrusive igneous rock?
These small pieces or particles make up sedimentary rock. They can be other rocks or plant and animal organisms.
What are Sediments?
Metamorphic rocks are created by these two primary agents.
What are extreme heat and pressure?
Geologists classify rocks into these 3 major groups.
What are igneous, sedimentary, and metamorphic rocks?
The type of rock that forms from magma or lava cooling is termed this.
What is igneous rock?
This type of rock is formed from lava ON the earth's surface.
What is Extrusive igneous rock?
This texture consists of fragmental pieces of inorganic materials such as sand, silt, and clay.
What is Clastic?
These types of rocks can become metamorphic rocks.
What are igneous, sedimentary, and other metamorphic rocks?
Magma transforms into an igneous rock by this process
What is crystallization?
This description is the most helpful when classifying clastic Sedimentary rocks
What is grain size?
This igneous rock is a common countertop material in your kitchen and is Felsic.
What is Granite?
This sedimentary rock can have either a bioclastic or a crystalline texture and is typically made of Calcite.
What is Limestone?
This occurs when magma comes in contact with existing rock and starts to melt the rocks initial properties
What is Contact metamorphism?
Prior to becoming igneous rock, this process must occur to any rock.
What is Melting?
This metamorphic rock is the only rock that contains banding.
What is Gneiss?
This description of an igneous rock is used when noticeable air pockets are seen.
What is vesicular?
This sedimentary rock contains the smallest grain size and may split easily.
What is Shale?
This foliated metamorphic rock is created by low-grade metamorphism of Shale.
What is Slate?
These two processes occur in order to create sediments.
What are weathering and erosion?
The series of processes that change one type of rock into another type of rock is called this.
What is the rock cycle?
This igneous rock is very light and can float in water. It also has holes due to the release of gases and is used as an abrasive. It is commonly used to scrub dead skin off feet and is a common beauty product.
What is pumice?
What is crystalline?
This type of metamorphism typically happens when rocks are deep underground and they are subjected to massive pressure — so much so that they often become elongated, destroying the original features.
What is regional metamorphism?
These rocks are created from deposition, burial, compaction, and cementation.
What is sedimentary?