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位于并受制于扬子古陆和华夏古陆之间的赣东北蛇绿岩-深断裂-高压变质岩在时间、空间和成因演化上密切相关.高压变质岩中尤以硬玉石英钠长片岩、硬柱石硬玉钠长片岩、硬玉钠长片岩和蓝闪片岩最为重要.硬玉质岩石中的硬玉接近纯硬玉(Jd95-99).硬玉因与石英反应形成钠长石并被钠长石包围与石英隔开,以准稳定态得以保存下来,而被钠长石包围的硬柱石则保留由黝帘石+钙长石组成的假象.与硬玉伴生的矿物有硬柱石、蓝闪石、钠长石、石英、黝帘石、钙长石、钠云母、沸石.根据结构可分为4个大的矿物组合世代:(1)Pl-Am-Q,(2)Jd-Lw-Gl-Q,(3)Zo-An-Ah-Q,(4)Ab-Zeo-(-Ser-Ur).它们相应的年代跨度、温压条件分别是:1.0～0.93Ga,250℃,(2～3)×108 Pa;0.93～0.79Ga,300～350℃,(5～12)×10~8Pa;0.79～0.223 Ga,350～400～120℃.(1～5～3)×10~8Pa,在0.223Ga以后<120～50℃,<3×10~8Pa.可得一先近等温增压至45km,再近原径等温降压至5km,后近等压降温的顺时针P-T-t轨迹.
It is closely related to the evolution of time, space and genesis of the ophiolite-deep fault-high-pressure metamorphic rocks in the northeastern Jiangxi that are located between and controlled by the Yangtze ancient continent and the Huaxia ancient continent.High-pressure metamorphic rocks, especially hard-jacinthitic slate, hard Pillared harzburgite schist, jade albite and bluerriness schist are the most important. The jadeites in jadeite are close to jadeite (Jd95-99). The jadeites react with quartz to form albite and are surrounded by albite and quartz Open, quasi-steady state to be preserved, and surrounded by sodium feldspar is retained by the zoisite + calcium feldspar illusion associated with the jadeite minerals are dulcite, glaucophane, albite, Quartz, zoisite, anorthite, paragonite and zeolite can be divided into four major mineral assemblages according to their structure: (1) Pl-Am-Q, (2) Jd-Lw-Gl- (4) Ab-Zeo - (- Ser-Ur). Their corresponding age span, temperature and pressure conditions are: 1.0 ~ 0.93Ga, 250 ℃, (2 ~ 3) × 108 Pa, 0.93-0.79 Ga, 300-350 ° C, (5-12) x 10-8 Pa, 0.79-0.233 Ga, 350-400-120 ° C. (1-5.5) x 10-8 Pa, and after 0.223 Ga <120 ~ 50 ℃, <3 × 10 ~ 8Pa. First available near-isothermal pressurization to 45k m, and then near the original diameter isothermal buck down to 5km, after nearly equal pressure drop clockwise P-T-t trajectory.