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 forces.
What is 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 intrusive igneous rock has larger crystals and is what Stone Mountain is primarily composed of.
What is granite?
The process that squeezes out fluids and decreases the space between the grains in a sediment deposit is called this.
What is compaction?
These types of rocks can become metamorphic rocks.
What are igneous, sedimentary, and other metamorphic rocks?
A rock transforms to sediment by these two processes.
What are weathering and erosion?
The fragments that make up a rock and its texture are called this.
What are grains?
This type of extrusive igneous rock is black with a glassy texture.
What is obsidian?
The crystallization of minerals from water into the spaces between sediment grains that makes sedimentary rocks stick together is called this.
What is foliated?
Prior to becoming igneous rock, this process must occur to any rock.
What is melting?
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.
What is pumice?
This type of sedimentary rock is made up of broken pieces of rock and minerals.
What is a clastic sedimentary rock?
An example of non-foliated metamorphic rock
What is marble or Quartzite?