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研究了苏鲁地体西部东海地区超高压变质榴辉岩的氢氧同位素组成，得到绿辉石和石榴子石的δ~(18)O值变化较大（为－10．4‰-＋4．8‰），多硅白云母的δD值变化较小（为－104‰-－83‰）。不同矿物对之间达到并保存了氧同位素平衡，得到了一致的同位素温度（650-750℃）。榴辉岩具有低至－10‰和－104‰的异常δ~(18)O和δD值表明，岩石与极贫~(18)O和D的大气降水成因流体发生过氢氧同位素交换，同时排除了海水的参与。很可能榴辉岩在发生变质前与大气降水达到同位素平衡，并保存了变质前的同位素特征。因此，榴辉岩的原岩是曾出露于大陆地壳的一种玄武质岩石，它被大气降水来源的热液流体所蚀变。这表明在陆－陆碰撞的缝合带，由于存在板块俯冲到地幔而产生地壳物质再循环过程。由于可能存在的扩散和重结晶作用，在地幔温度和压力下硅酸盐矿物将经历快速的氧同位素交换。超高压榴辉岩中保存大气降水特征指示只存在有限的壳幔相互作用，因此，含榴辉岩原岩的板块在地幔深度的滞留时间可能很短。不同矿物对给出一致的氧同位素温度则指示，这些榴辉岩在地幔深度形成后可能经历了快速冷却和抬升过程。
The hydrogen and oxygen isotopic compositions of ultrahigh-pressure metamorphic eclogites in the western part of the Sulu terrane were studied. The δ 18 O value of omphacite and garnet changed greatly (-10.4 ‰ - + 4.8 ‰), the δD value of polysilicone changed little (-104 ‰ - 83 ‰). Oxygen isotope equilibria have been achieved and preserved between different mineral pairs and a consistent isotopic temperature (650-750 ° C) has been obtained. The eclogites have abnormal δ 18 O and δ D values as low as -10 ‰ and -104 ‰, indicating that hydrogen and oxygen isotope exchange occurs between rocks and the hydrothermal fluid of extreme precipitation (18) O and D Exclusion of seawater. It is likely that the eclogite reaches isotopic balance with atmospheric precipitation before metamorphism and preserves the isotopic characteristics before metamorphism. Therefore, the original rock of eclogite is a type of basaltic rock that has been exposed to continental crust and is altered by hydrothermal fluids from atmospheric precipitation. This shows that in the land-continental collision suture zone, crustal material recycling process occurs due to plate subduction into the mantle. Silicate minerals will undergo rapid oxygen isotope exchange at mantle temperature and pressure due to possible diffusion and recrystallization effects. Preservation of atmospheric precipi- tation in UHP eclogites indicates that there is only limited crust-mantle interaction and that therefore, the retention time of plates containing eclogite protoliths in the mantle may be very short. The consistent oxygen isotope temperature for different mineral pairs indicates that these eclogites may undergo rapid cooling and uplifting after the mantle depth has been formed.