2) ductile nappe shear zone
韧性推覆剪切带
1.
Tading area of Qixia county is the only area where Jingshan Group contacts directly with Fenzishan Group by ductile nappe shear zone.
栖霞塔顶地区是华北板块南缘唯一可以看到古元古代荆山群与粉子山群直接接触的区段 ,二者之间发育一韧性推覆剪切带 ,荆山群底部高铝片岩被推覆于粉子山群的不同层位之上。
3) Thrust-napped ductile shear zone
逆冲推覆韧性剪切带
4) thrust shear
推覆剪切
1.
The Hongyejia thrust shear zone northwest of Heihe in the Heilongjiang River valley extends in an E—W direction in the junction between the southern side of the Luomahu median uplift and the northern margin of the Paleozoic Handaqi fold belt.
黑龙江黑河西北洪业家推覆剪切构造带呈EW向展布于落马湖中间隆起带南侧与罕达气古生代褶皱带北结合部位,据变形强弱划分了北、中、南三个强变形带。
5) 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。
6) 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。
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。 |
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