Mechanisms of bimodal magmatism generation beneath Southwest Indian ridge: Implications for the variable composition of MORBs

Table S1. Chemical and isotopic compositions for lavas and scorias from the Southwest Indian ridge Table S2. Major, trace, volatile element of glasses and melt inclusions from SWIR reported here. Table S3. Sr isotopes of glass, plagioclase, melt inclusion from SWIR, and glass and plagioclase standards Table S4. Major element compositions for olivine and plagioclase from the Southwest Indian ridge Table S5. Volatile element of olivine and plagioclase from SWIR reported here Table S6. Average value for volatile element of glasses and melt inclusions in SWIR compared to seawater. Table S7. Helium concentrations and blank corrected isotopic ratios of glasses from Southwest Indian ridge reported here. Table S8. Modelling endmembers compositions of DMM, LCC and SCLM.表S1 西南印度洋中脊熔岩与火山渣的化学成分及同位素组成 表S2 本文所报道的西南印度洋中脊（Southwest Indian Ridge, SWIR）玻璃质与熔体包裹体的主量、微量及挥发分元素组成 表S3 西南印度洋中脊玻璃、斜长石、熔体包裹体以及玻璃与斜长石标准物质的锶同位素组成 表S4 西南印度洋中脊橄榄石与斜长石的主量元素组成 表S5 本文所报道的西南印度洋中脊橄榄石与斜长石的挥发分元素组成 表S6 西南印度洋中脊玻璃质与熔体包裹体的挥发分元素平均值及其与海水的对比 表S7 本文报道的西南印度洋中脊玻璃质的氦浓度及空白校正后的同位素比值 表S8 DMM、LCC与SCLM的模拟端元组成