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黑龙江构造混杂岩中保留着一套曾遭受过中高压变质作用的岩石,其代表性岩石为:蓝片岩-云母片岩;蓝闪石、铁蓝闪石和多硅白云母(单位结构中Si=3.37～3.46>3.30)等具有中高压性质的典型变质矿物在岩石中平衡共生.蓝片岩-云母片岩组合至少经历了早期和晚期两阶段变质,早期为绿帘蓝片岩相,变质温压条件为T=320～460℃,P=7.8×108～11×108Pa.晚期为高绿片岩相,出现富镁绿泥石(XMg=0.565～0.646)交代早期钠质角闪石和多硅白云母等高压变质矿物现象,变质温度升高而压力有所降低,由石榴石云母片岩所限定的高绿片岩相变质条件为T=536～598℃,P=6.8×108～9.5×108Pa,属中温和中高压变质.
The Heilongjiang tectonic melange contains a set of rocks that have suffered metamorphic metamorphism. The representative rocks are: blue schistite-mica schist, glaucophane, beryl and amphibole (Si = 3.37 ~ 3.46> 3.30), typical meta-metamorphic minerals with medium-high pressure are balanced and symbiotic in the rock.The blue-schist-mica schist assemblage experienced at least two stages of early and late metamorphism, the early stage is the green curtain blue lithofacies facies, the metamorphic thermo- = 320 ~ 460 ℃, P = 7.8 × 108 ~ 11 × 108Pa. In the late stage of high greenschist facies, high-pressure metamorphic metamorphic rocks such as sodium-rich hornblende Mineralization phenomenon, the metamorphic temperature increases and the pressure decreases. The metamorphic conditions of high greenschist facies defined by garnet mica schist are T = 536 ~ 598 ℃, P = 6.8 × 108 ~ 9.5 × 108Pa, Degenerate.