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IGNEOUS ROCKS - Coggle Diagram
IGNEOUS ROCKS
Extrusive
from lava
Basalt
Most of the ocean floor
Fine grained rock
Dark coloured from black to dark green
small crystals
the Antrim-Derry Plateau
Cools quickly and solidifies near the earth surface
Intrusive/Plutonic
from molten magma
cools and solidifies deep inside the crust
.
Granite
mountains of Donegal
Minerals
Feldspar
Mica
Quartz
Normally dark grey
large crystal
resistant to erosion
Cools slowly
