论文部分内容阅读
东坪地区金矿受东西向的剪切带及其派生的次一级的网状剪切构造所控制。其可以见到从韧性到脆韧性的变形。沿着这些剪切带，在数米之内，可见糜棱岩蚀变，并见有韧性剪切断裂而派生的透镜层和张裂隙充填物，并重新相变为糜棱岩。共轭断裂和平行断裂带也可见到，形成一个极其复杂的断裂型式。根据野外和实内调研，可以得出东坪网状剪切带的特征属脆韧性
The Dongping gold deposit is governed by the east-west shear zone and its sub-secondary net shear structure. It can see deformation from toughness to brittleness and ductility. Along these shear zones, within a few meters, mylonite alteration can be seen and lens and tensile fracture fillings derived from ductile shearing fractures are observed and recrystallized into mylonites. Conjugate faults and parallel fault zones are also visible, forming an extremely complex fault pattern. According to field and field investigation, it can be concluded that the characteristics of Dongping reticular shear zone are brittle and ductile