IIT JAM
Anukruti Asked an Mcq
November 5, 2020 10:23 pmpts 30 pts
  • IIT JAM
  • Geology (GG)

The dominant constituent of ultramafic rocks in earth's mantle is

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  • Rahul pandey
    It should be B- Olivine
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  • Sajan sarthak sahoo Best Answer
    Peridotite is ultramafic, as the rock contains less than 45% silica. Peridotite Olivine higher and pyroxene also present. It is high in magnesium (Mg2+), reflecting the high pr...
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  • Rahul pandey thankyou
    Olivine is the dominant constituent of ultramafic rocks in Earth's Mantle. Olivine is stable in high pressure and temperature condition and hence remain stable and dominant in Mant...
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    Anukruti
    so is it B or C?