1) gabbroic mylonite
辉长质糜棱岩
2) carbonaceous mylonite schist
碳质糜棱片岩
1.
Located on the northern margin of Qaidam massif,the Tanjianshan gold deposit occurs in the carbonaceous mylonite schist of Wandonggou Group of Mesoproterozoic Jixian System as well as in the Late Variscan intrusive rocks.
滩间山金矿床产于中元古界万洞沟群碳质糜棱片岩和华力西晚期侵入岩中。
2.
Tanjianshan gold deposit is situated in the northern margin of Qaidam Massifand occurs in the Middle Proterozoic Wandonggou group carbonaceous mylonite schist andLate Variscan intrusive rocks.
滩间山金矿床位于柴达木地块北缘,产于中元古界万洞沟群碳质糜棱片岩和华力西晚期侵入岩中。
3) quartzose ultramylonite
石英质超糜棱岩
4) carbonate mylonite
碳酸盐质糜棱岩
5) granitic mylonite
花岗质糜棱岩
1.
The granitic mylonite occurred at the left-later shear Mayinebo fault belt as veined and banded shapes, which is consistent with shear-extension direction, belonging to syn-tectonic granite.
玛因鄂博断裂带具有左型剪切活动特征,分布其中的花岗质糜棱岩呈脉状、条带状产出,展布方向与剪切拉伸方向一致,为同构造花岗岩。
2.
This study also focused on 40Ar-39Ar dating of the biotite from granitic mylonite in the shear zone and yielded plateau ages of 347.
西秦岭北缘新阳—元龙大型韧性剪切带是分划西秦岭造山带与祁连造山带的区域主构造边界,通过对其物质组成和构造特征的研究,结合两侧不同(洋-陆)构造环境下各类地质体的研究成果,重点对剪切带内花岗质糜棱岩中黑云母单矿物进行了40Ar-39Ar定年研究。
6) mafic mylonite
镁铁质糜棱岩
补充资料：糜棱岩
| 糜棱岩 mylonite 原岩遭受强烈挤压破碎后形成的一种动力变质岩。主要由细粒石英、长石及少量新生绢云母、绿泥石等矿物组成。矿物颗粒细小，一般小于 0.5毫米。具明显的条带状和眼球状构造，线理发育。显微镜下可见碎屑矿物具波状消光、解理和双晶纹弯曲 、颗粒边部碎裂等现象 。岩性致密、坚硬。主要由花岗岩、石英砂岩等刚性岩石经强烈动力变质形成。多发育于扭性或压扭性断裂带。依糜棱岩化程度分为糜棱岩化岩、糜棱岩、超糜棱岩和千糜岩等。 |
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参考词条