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rocks - Coggle Diagram
rocks
3
Sedimentary
compressed sediments (animal/vegetal remains)
metamorphic
heat and pressur change the rock without melting it (phisical/ chemical)
igneous
magma rised, cooled down and cristalize (the slower it cools down, more cristals are created)
Wheathering and erossion
formation of sediments
rocks get shaped
minning
surface
open pit
dug inside a bench (roads to get to the minerals)
strip mining
overburden is removed in strips (remove coal from the surface deposits)
open cust/cut
mineral is under a layer of overburden (then used to restorate)
sub-surface
digging tunels into the ground (to get to the deposits)
shaft mining (vertical tunels)
deep mining
digging several tunels
slope mining (reach deeper deposits)
drift mining (horizontal)
earth
3 layers
mantel
liquid magma
outer core
liquid
crust
rock soil and mineral
inner core
liquid