sinian period meaning in Chinese

震旦纪

In qinghai province , it reveals that the au deposits are mostly distributed on the sits between different tectonic units ; and in the edge of the exposed and / or concealed metamorphic basement of the early sinian period ; in the area of the exposed and concealed acid - instrusions and / or their contacts ; and in the localities where the circular and linear anomalies of graviation and magnetism cut across
结果表明，该区的金矿大都分布在不同大地构造单元结合部位；处于前震旦纪变质岩系出露及隐伏基底边缘；位于出露和隐伏中酸性岩体及其接触带；位于重磁环线、线线构造交汇处等。