The full spreading rate of a ridge is the speed at which the two plates on either side of it move apart. The half spreading rate is the speed at which the floor on one side moves away from the ridge axis. When spreading is symmetric, the full rate is twice the half rate.
বইগুলো এখনো বাংলা ভাষায় পাওয়া যায় না — ইংরেজি সংস্করণ দেখানো হচ্ছে।
Earth and Space Sciences · পরিভাষা