Igneous rocks
True/False - Igneous rocks were likely the first type of rock formed on Earth.
True
How do you define a sedimentary rock?
Rocks formed from compacted sediments being cemented together.
How do you define metamorphic rock?
Formed when intense heat and/or pressure changes existing rocks
What is melted rock found beneath the Earth's surface called?
Magma
What type of mining is this?
A hole is drilled into the ore deposit and a solution that will dissolve the ore is pumped in, then the dissolved mineral is pumped back to the surface
Leach mining
Igneous rocks are formed by what?
A cooling of magma or lava
Coal
What are the layers of the Earth from the middle out?
Inner core, outer core, mantle and crust
When rocks are deposited in a river what order would they be in?
Big on the bottom and small on the top.
Why would the government check the water drainage, soil quality and plant native plants when a mine is being rehabilitated?
To reduce the amount of soil erosion and return the area back to its natural form
Intrusive igneous rocks are found where?
Beneath the Earths surface.
Which of these is an example of a sedimentary rock?
Pumice, Limestone, Gneiss
Limestone
What does the word rock mean?
A solid mass made of one or more minerals or mineral-like substances
What is a mineral?
A mineral is a naturally occurring substance that makes up igneous, sedimentary and metamorphic rocks
What type of mining required a vast open area for explosives, trucks to dig and dump and to find lower-grade ores?
Open-cut mining
Smaller crystals are formed by rapid of slow cooling of lava?
Fast cooling of lava
What are the three types of sedimentary rocks?
Clastic, Chemical and Biogenic
Through intense heat and pressure
What is an ore?
Explain what tailings are?
Igneous rocks are made of what?
Interlocking crystals
Define biogenic sedimentary rock
Types of rock formed when dead plant matter or animal remains accumulate and cement
What are the three types of metamorphic rock?
Regional, contact and dynamic
Explain how the size of crystals in igneous rocks can be different?
If they cool quickly they will be small, if they cool rapidly they will be large.
List the steps to copper mining
Find where copper is found, dig the rock with copper, crush the rock, smelt the copper into sheets, make the sheets in wires.