The mantle transition zone is the part of the mantle between the seismic discontinuities near and depth, in which olivine of the upper mantle is replaced by its denser polymorphs, wadsleyite and then ringwoodite. Above it is the upper mantle; below it the lower mantle, down to the core–mantle boundary.
বইগুলো এখনো বাংলা ভাষায় পাওয়া যায় না — ইংরেজি সংস্করণ দেখানো হচ্ছে।
Earth and Space Sciences · পরিভাষা