A comprehensive whole-rock geochemical study of peridotites and volcanic rocks from the Indo-Myanmar Ranges (IMR) ophiolites deduces the source and extent of mantle melting and role of subduction components in modifying its melt composition. Melt modelling yields partial melting in the range of ~5–25% (with a maximum up to 20%) from a depleted MORB mantle (DMM) source. Two types of subduction component seem to have modified the IMR volcanics. The addition of hydrous fluids from a subducting slab has enriched few IMR volcanics in large-ion lithophile elements (LILEs) while those enriched in LREEs were affected by melts derived from subducting sediments. The MORB-Arc basalt geochemical signatures of the IMR volcanics are attributed to the evolving magma as the extent of mantle melting increases under the influence of fluids/melts from the dehydrating slab/sediments in the later stages of subduction initiation (SI).

来自印度-缅甸山脉（IMR）蛇绿岩的橄榄岩和火山岩的全面全岩石地球化学研究推论了地幔融化的来源和程度，以及俯冲成分在改变其熔体成分中的作用。融化模型从耗尽的MORB幔（DMM）来源产生的部分融化范围为〜5–25％（最大可达20％）。两种俯冲成分似乎已经改变了IMR火山。从俯冲板中添加含水流体使大离子亲石元素（LILE）中的IMR火山富集得很少，而富含LREE的IMR火山则受到俯冲沉积物衍生的熔体的影响。