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江苏省东海、宁镇和苏州地区分布有若干分属于两类不同成因类型的花岗岩类岩体。在这些岩体的边部和顶部分布着许多形态极不规则、大小各异的暗色包体,它们的矿物组合、岩石化学和地球化学特征与主体岩石相似,为同源产物。包体中矿物的结晶粒度明显细于主体岩石,并含有大量因骤冷而晶出的针状磷灰石,且见不同程度的重熔现象。故它们是由于岩浆脉动上侵、挤碎并重熔的早期形成的岩体边缘相岩石,而不是早期火成岩和围岩捕虏体,也不是岩浆析离体和深源包体。
There are several granitic rocks belonging to two types of genetic types in the East China Sea, Ningzhen and Suzhou of Jiangsu Province. Many dark-shaped inclusions with extremely irregular shapes and sizes are distributed on the sides and tops of these rock masses. Their mineral assemblages, petrochemistry and geochemical characteristics are similar to the host rock and are homologous products. The inclusions in the crystal grain size was significantly thinner than the main rock, and contains a large number of precipitated apatite due to rapid cooling, and see the remelting to varying degrees. They are due to the early formation of lithofacies edge facies due to magmatic pulsation intrusion, crushing and remelting, rather than early igneous and surrounding rock xenoliths, nor magmatism and deep source inclusions.