Features and petrogenesis of ultraphyric and aphanic basalts at 50 °E and 64 °E of the Southwest Indian Ocean Ridge

Xin Su1, Maokang Hu1, Shihui Lv1, Huaiming Li2 and Chunhui Tao3, (1)China University of Geosciences, School of Ocean Sciences, Beijing, China, (2)The Second Institute of Oceanography,State Oceanic Administration, Key Laboratory of Submarine Geosciences, Hangzhou, China, (3)Key Laboratory of Submarine Geosciences, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China