地质建造

银成矿受一定的含银地质建造、岩浆侵入－喷发活动以及不同级别的断裂、破碎带、环形构造控制。

The formation of silver deposits are controlled by the silver bearing geological formation , the magma activity as well as the various faults , fracture zone and the circle structure .

成矿元素主要来自原生和次生含金地质建造。

The source of elements of mineralization should be primary and secondary gold-bearing geological formations .

在有较大裂隙，溶洞、溶沟、溶槽发育，有串珠状溶洞并多层处与外部海水直接贯通的复杂地质上建造船坞，基坑开挖堵漏和基础处理是施工的关键。

The key points of the construction are leakage stoppage during the pit excavation and foundation treatment when the ship dock is constructed on the complicated geology with growing fissures , karst caves , channellings , fluid bowls and many beaded karst caves directly linking up with external sea water .