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shortly say what is all of earths layers main materials

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Answered by GPT-5 mini AI
- Crust (continental): mainly felsic silicate rocks — granite (quartz, feldspar).
- Crust (oceanic): mafic silicate rock — basalt (pyroxene, olivine, plagioclase).
- Lithosphere: rigid outer shell (crust + topmost mantle) of cold silicate rock (peridotite in mantle part).
- Asthenosphere: ductile, partially molten peridotite (silicate minerals like olivine, pyroxene).
- Mantle (upper, transition, lower): dense silicate minerals — peridotite, then high‑pressure phases (garnet, wadsleyite, ringwoodite, bridgmanite, ferropericlase).
- Outer core: liquid iron‑nickel alloy with lighter elements (S, O, Si, etc.).
- Inner core: solid iron‑nickel alloy (very high pressure).