1) post-ductile-shear type
后韧性剪切型
1.
Based on the work of 1/50 000 regional investigation and previous data, it was thought that the Xiaoyinuogaigou gold deposit is a post-ductile-shear type one formed from J_2 to K.
1∶5×104区调工作表明小伊诺盖沟金矿是主要形成于J2K的后韧性剪切型金矿床,额尔古纳构造带的变形特点、区域岩浆活动、小伊诺盖沟金矿的容矿构造、成矿地质特点等方面证实小伊诺盖沟金矿的形成与蒙古-鄂霍茨克洋关闭碰撞,其后的太平洋板块运动引发的陆内拆离俯冲,和相关的变形及构造-深源岩浆-成矿热液活动等有关。
2) mantle ductile shear zone
幔型韧性剪切带
1.
The geometrie and kinetic features of the large mantle ductile shear zone along Yarlung-zangbo River are discussed.
本文论述了在雅鲁藏布江蛇绿岩中发现的大型幔型韧性剪切带的几何学和运动学特征,通过研究超镁铁质糜棱岩中变形橄榄石的显微构造,分析了上地幔的流变状态,探讨了幔型韧性剪切带生成的构造环境和阿尔卑斯型铬铁矿的地幔剪切动力成因机制。
3) ductile shearing
韧性剪切
1.
Simulating experiments were done on foe migration process- "releasing local migration" of SiO2 in phyllite in the process of ductile shearing.
实验较好地模拟了韧性剪切作用过程中SiO2“释放-局部迁移”的迁移过程。
4) ductile shear
韧性剪切
1.
Metamorphic hydrothermal Shiwu gold deposit was located in the western part of Jinshan gold ore field of Jiangxi Province, and controlled by a ductile shear zone.
江西石坞金矿床位于江西省金山金矿田金山金矿西部,是一个受韧性剪切带控制的变质热液型大型岩金矿床。
2.
However, charnockitization was closely related to the ductile shear deformation in deep-levels.
造山带紫苏花岗岩化与深层次韧性剪切变形,特别是与造山作用过程的减压抬升揭顶作用具有密切关系。
5) ductile shear zone
韧性剪切
1.
The earlier ductile shear zone controlled the distribution of the quartz veins, and the late brittle fault controlled the orebody directly.
早期韧性剪切带只对矿脉起宏观控制作用,晚期的脆性断裂为含金石英脉的直接控矿构造。
6) gold deposit of later ductile shear zone
后韧性剪切带全矿
补充资料:韧性剪切带
韧性剪切带 ductile shear zone 地壳深部(大于10~15千米)具有强烈塑性流变及旋转应变的面状高应变带。又称韧性断层。韧性剪切带中没有明显的不连续面,与两侧岩石之间的应变呈递进演化的关系 ,两侧岩石则显示出明显的剪切位移。规模小者见于显微镜下的薄片中,大者宽数十千米,延展可达上千千米,常见于造山带。韧性剪切带主要地质构造特征有:①面理、线理发育。②应变自中心向两侧递减,由此形成的面理或线理呈连续的S形或反S形排布。③带中岩石具明显的旋转构造特征,如不对称压力影,S型云母鱼。④软性矿物常呈优选方位组构特征。⑤在中心高应变带发育有糜棱岩。⑥在中心高应变带常可见到由于强烈剪切而形成与线理近于平行的A型褶皱或似箭鞘状的鞘褶皱。 |
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