Rock Cycle
The __ is a continuous process that forms, alters, and reforms rocks.
rock cycle
Where are sedimentary rocks formed?
on the surface
What is another name for igneous rocks?
Magmatic rocks
When are metamorphic rocks formed?
This happens at different temperatures or pressures that of the original rock.
What is coal made up of?
The remains of plants
What are rocks composed of?
minerals, typically more that 1 type
Name one group that sedimentary rocks can be classified as.
Clastic rocks.
Chemical rocks.
Organic rocks.
Name one type of igneous rock.
Plutonic, volcanic, intermediate
Where does the formation of metamorphic rocks usually occur at?
Inside of the crust
Why are coal and petroleum called fossil fuels?
They are made up of fossil remains that have been transformed for a long period of time.
What is the place or process in which rocks were created?
their origin
Name one texture that rocks can have.
Glassy, Aphanitic, Phaneritic, Vesicular
How are igneous rocks formed?
They are the result of the solidification of magma.
What are the two groups that metamorphic rocks can be classified as?
Foliated and non-foliated rocks
Give me one function of coal
What 3 types of rocks does the rock cycle relate to each other?
igneous, sedimentary, metamorphic
What needs to happen for sedimentary rocks to for?
destruction of previous rocks of any type (sedimentary, metamorphic or igneous)
Name one region that igneous rocks may be found in.
Olot (in Girona), Calatrava’s region (in Ciudad Real), Gata’s cape (in Murcia), Canary Islands
How are non-foliated rocks formed?
instead of forming layers, in this case, minerals grow in size thanks to the higher temperature
What is coal classified by?
It’s calorific value - the higher the proportion of carbon, the better it is.
How does a stone differ from a rock?
A stone is a little fragment of rock (maximum with the size of a fist).
Why are organic rocks formed?
Due to the accumulation of remains of living things such as shells (limestone with shells) or coal (with remains of plants).
What are igneous rocks classified by?
They can be classified according to the depth in which solidification of the magma occurs.
What is an example of a foliated rock?
Slate, schist, or gneiss
Name 2 environmental problems that coal has caused.
Increasing of greenhouse effect and creation of acid rain (nitrogen and sulfur oxides.)