Igneous: These rocks are volcanic in nature. They are split into two categories in where they cool/crystallize: intrusive (internal) and extrusive (external). Intrusive volcanic rocks cool slowly, so they contain (usually) large crystals, like granites. Extrusive rocks are quite the opposite, in which they cool very quickly. This is where you get your obsidian glass and basalts. Sedimentary: These rocks are depositional and categorized by the kind of sediment it is made up of. Metamorphic: This can be the offspring rock of either a morphosed igneous or sedimentary rock. This metamorphism is accomplished by heat and/or pressure, and during a great length of time.
A metamorphic rock.
All rock formations are natural. It is not clear what you are asking.
Igneous an Metamorphic are the two types of rock that are formed with the help of heat .
Igneous an Metamorphic are the two types of rock that are formed with the help of heat .
sediment
A metamorphic rock.
A metamorphic rock.
All rock formations are natural. It is not clear what you are asking.
Igneous an Metamorphic are the two types of rock that are formed with the help of heat .
Igneous an Metamorphic are the two types of rock that are formed with the help of heat .
Formed by Sedimentary and Igneous rock,and even other types of Metamphic rock.
Mechanically formed sedimentary rock , Chemically formed sedimentary rock and Organically formed sedimentary rock.
Igneous rock is the name for the types of rock formed when melted rock hardens.
All rock types can be formed from any other rock type.
the three types of rocks are classifed based on theire mode of formation or occurence where, they are formed but not of the todays occurence.
Physically/mechanically formed sedimentary rock, organically/biologically formed sedimentary rock, and chemically formed sedimentary rock.
Examples of sedimentary rock could be rock on beaches, ocean floor and river beds. These types of rock are formed where types of sediment collect over time. Sedimentary rock is valuable to scientists for they preserve a record of how the earth was was over thousands of years.