2) ductile-brittle shear structure
韧-脆性剪切构造
1.
It was put forward that the volcanic eruption sedimentary metamorphic strata were the mineraliztion foundation;the ductile-brittle shear structure was the ore-controlling condition;the magmatic hydrothermal fluid supplied mineralization substance and thermal power.
阐述了青城子矿田金凤金银多金属矿床成矿地质背景及矿床地质特征,并对成矿机制进行了研究和分析,指出了火山喷流沉积变质地层是成矿基础,韧-脆性剪切构造是控矿条件,岩浆热液提供了成矿物质及热动力,是成矿关键。
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) ductile shear belt
韧性剪切带
1.
Features of ductile shear belt of Xinglong gold mining area and its mineral-bearing potentiality;
兴隆金矿区韧性剪切带特征及其含矿性研究
2.
The formation and distribution of the known gold deposits are both related to ductile shear belts,which are major ore-controlling structure of greenstone type gold deposits.
已知金矿床的形成与分布均与韧性剪切带有关,韧性剪切带是形成绿岩型金矿的主要控矿构造。
3.
The gold deposit of Jinshan is metamorphic hydrothermal solution type which is controlled by the ductile shear belt.
“金山式”金矿床属于受韧性剪切带控制的变质热液型金矿床。
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