1) Ultrahigh-pressure metamorphic P-T-t path
超高压变作用P-T-t轨迹
3) metamorphic p-T path
变质作用p-T轨迹
1.
The detailed study of metamorphic p-T path from garnet-hornblende zone indicates three metamorphic evolutionary stages: the middle-high pressu.
通过对石榴石-角闪石带变质作用p-T轨迹的深入研究表明,其经历了3个阶段变质作用:即经历了俯冲碰撞深埋到30~35km深度的中高压变质作用(M1),压力可达7。
4) metamorphic p-T-path
变质p-T-t轨迹
5) P-T-t path
P-T-t轨迹
1.
The related UHP metamorphic P-T-t path has been reconstructed which could be subdivided into four stages,including prograde(StageⅠ)and UHP metamorphism(StageⅡ)during deep-subduction,and initial quartz eclogite-facies(StageⅢ)and later amphibolite-facies(StageⅣ)retrograde metamorphism during exhumation.
如何建立苏鲁-大别超高压岩石深俯冲-超高压-快速折返过程连续而完整的P-T-t轨迹及精细的年代谱系,是目前地学界研究的热点。
6) P-T-t paths
P-T-t轨迹
1.
Based on the detail studies of relationship between metamorphism and deformation of Mayuan Group (early Proterozoic) and Mamianshan Group (late Proterozoic)in Northern Fujian and P-T-t paths determinated from the zoned garnets, as well as the data of structural geology and isotopic geochronology, it is proved that the metamorphic rocks of Mayuan Group formed in early Proterozo.
本文通过对闽北麻源群和马面山群变质岩详细的变质变形关系的研究和石榴子石环带测定P-T-t轨迹的应用,结合构造地质和同位素年代学的资料,证实了麻源群变质岩形成于早元古代或更老年代,在早元古代末期遭受过中压、中高温变质,但在晚元古代晋宁期与中元古代形成的马面山群岩石一起经历了强烈的变质变形作用,表现为早元古代麻源群岩石遭受强烈改造,具有早期地壳再活化特点。
补充资料:超高压
超高压
一般指高于一万大气压的压强。在超高压下,物质的物理化学性质发生显著变化。利用超高压和高温可使物质结构改变,或者合成自然界尚未发现过的物质,如固体氮和性质极硬的氮化硼等。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条