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韩长冲地区主要由超高压变质岩、碱长花岗片麻岩、二长花岗片麻岩组成。前者包括超高压片麻岩、大理岩、榴辉岩和石英硬玉岩等。其中存在由黑云斜长片麻岩、石英硬玉岩、大理岩及层状榴辉岩组成的超高压变质表壳岩组合。超高压变质岩先后经过柯石英榴辉岩相、石英榴辉岩相、角闪岩相及绿片岩相多阶段的变质作用；经过榴辉岩相、角闪岩相、角闪岩相后及脆性等四期变形。其中角闪岩相变形形成本区的主要构造要素，以发育大量Ａ型褶皱及普遍的糜棱岩化为特征。碱长花岗片麻岩及二长花岗片麻岩只经过角闪岩相及其后的变质和变形作用。超高压变质岩与碱长花岗片麻岩呈侵入接触，可能沿缓倾向ＳＳＥ的韧性剪切带逆掩于二长花岗片麻岩之上。
The Hanchangchong area is mainly composed of UHP metamorphic rocks, alkali-bearing granite gneiss, and two long-granite gneiss. The former includes ultra-high pressure gneiss, marble, eclogite and quartz jadeite. Among them are the UHP metamorphic crust-rock assemblages consisting of biotite plagiogranite, quartz jadeite, marble and layered eclogites. The UHP metamorphic rocks successively metamorphosed into multi-stage metamorphic rocks including eclogite, quartz eclogite facies, amphibolite facies and greenschist facies. After the eclogite facies, amphibolite facies and amphibolite facies Fragile and other four deformation. The amphibolite facies deformation is the main tectonic element in this area, characterized by the development of a large number of A-type folds and the widespread mylonitization. Alkaline granitic gneiss and monzogranite gneiss only undergo amphibolite facies and subsequent metamorphism and deformation. The UHP metamorphic rocks intruded into contact with the alkali-bearing granite gneiss, possibly overlying the ductile granitic gneiss along the ductile shear zone of gentle dip SSE.