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common crust minerals
Si, O, Fe, Al, K, Ca, Mg, Na
continental crust average rock density
2.7 g/cm³
thickness
35-40 km
composition
felsic
avg rock?
granite
high comp of what elemetns
SiO2, K, Na
minerals?
quartz, feldspars
OCEANIC CRUST! rock density?
3.0 g/cm³
thickness?
7-10 km
composition?
mafic
avg rock?
basalt/gabbro
elements?
Ca, Fe, Mg
minerals?
pyroxenes, plagioclase
MANTLE elements?
Ca, Mg, Fe
composition?
ultra mafic
minerals?
olivine, pyroxenes
rock?
peridotite
thickness?
3,000 km
density
very dense
outer core
liquid
inner core
Fe, Ni